AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/09/11 09:50	flow	patch-triage	1m Args: null Results: { "EnableConfigs": [ "NETFILTER", "NF_CONNTRACK", "NF_NAT", "NF_TABLES", "NFT_CT", "NFT_SYNPROXY", "NETFILTER_NETLINK_ACCT", "NETFILTER_NETLINK_OSF", "NF_CT_NETLINK_TIMEOUT", "NF_CT_NETLINK_HELPER", "NETFILTER_XT_TARGET_CT", "NETFILTER_XT_MATCH_HASHLIMIT", "OPENVSWITCH" ], "FocusSymbols": [ "nf_ct_seqadj_init", "nf_conncount_init", "nf_ct_add_helper", "nf_nat_register_fn", "nfnl_acct_new", "nfnl_cthelper_update_policy_all", "cttimeout_new_timeout", "nfnl_osf_add_callback", "nft_pipapo_init", "pipapo_clone", "xt_ct_tg_check", "htable_create" ], "KMSANReasoning": "The patch primarily adds `GFP_KERNEL_ACCOUNT` to various heap/percpu allocations across netfilter modules for cgroup memory accounting, and aligns `nf_ct_seqadj_init()` with `nf_ct_seqadj_set()` regarding locking when checking extension pointers.\n\nNone of the changes introduce or expose uninitialized memory risks:\n- Allocations that were zero-initialized (e.g. via `kzalloc`, `kvzalloc_obj`) remain zero-initialized.\n- Cloned buffers (via `kmemdup`) copy already-initialized structures.\n- No new uninitialized stack or heap variables are introduced, read, or leaked across trust boundaries (such as to userspace).\n- Any potential issues introduced by these modifications (such as allocation failures, concurrency, or locking issues) are covered by standard kernel sanitizers (KASAN, LOCKDEP) and do not warrant dedicated KMSAN fuzzing.", "NeedsKMSAN": false, "Reasoning": "The patch modifies core netfilter logic across several modules (conntrack, NAT, nftables, and xtables). Specifically, it alters locking and initialization flow in nf_ct_seqadj_init() and switches memory allocations across various netfilter components to use GFP_KERNEL_ACCOUNT and percpu accounting. These changes affect reachable network configuration and packet processing paths.", "WorthFuzzing": true }
1/1	2026/09/11 09:50	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit b58260d692c55bffb25e6452964d35d513dd6eb1\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Fri Sep 11 09:50:52 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c\nindex 4292c3d9addde..eca7a8d330ce6 100644\n--- a/net/netfilter/nf_conncount.c\n+++ b/net/netfilter/nf_conncount.c\n@@ -692,7 +692,7 @@ struct nf_conncount_data nf_conncount_init(struct net net, unsigned int keylen\n \t keylen == 0)\n \t\treturn ERR_PTR(-EINVAL);\n \n-\tdata = kvzalloc_obj(data);\n+\tdata = kvzalloc_obj(data, GFP_KERNEL_ACCOUNT);\n \tif (!data)\n \t\treturn ERR_PTR(-ENOMEM);\n \ndiff --git a/net/netfilter/nf_conntrack_ovs.c b/net/netfilter/nf_conntrack_ovs.c\nindex b4085af3ad1ce..fe525b324af41 100644\n--- a/net/netfilter/nf_conntrack_ovs.c\n+++ b/net/netfilter/nf_conntrack_ovs.c\n@@ -93,7 +93,7 @@ int nf_ct_add_helper(struct nf_conn ct, const char name, u8 family,\n \tif (!helper)\n \t\treturn -EINVAL;\n \n-\thelp = nf_ct_helper_ext_add(ct, GFP_KERNEL);\n+\thelp = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT);\n \tif (!help) {\n \t\tnf_conntrack_helper_put(helper);\n \t\treturn -ENOMEM;\ndiff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c\nindex 220216a4edc51..d75e8dafb189e 100644\n--- a/net/netfilter/nf_conntrack_seqadj.c\n+++ b/net/netfilter/nf_conntrack_seqadj.c\n@@ -10,20 +10,19 @@\n int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\n \t\t s32 off)\n {\n+\tstruct nf_conn_seqadj seqadj = nfct_seqadj(ct);\n \tenum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);\n-\tstruct nf_conn_seqadj seqadj;\n \tstruct nf_ct_seqadj this_way;\n \n \tif (off == 0)\n \t\treturn 0;\n \n-\tspin_lock_bh(\u0026ct-\u003elock);\n-\tseqadj = nfct_seqadj(ct);\n-\tif (!seqadj) {\n-\t\tspin_unlock_bh(\u0026ct-\u003elock);\n+\tif (unlikely(!seqadj))\n \t\treturn 0;\n-\t}\n+\n \tset_bit(IPS_SEQ_ADJUST_BIT, \u0026ct-\u003estatus);\n+\n+\tspin_lock_bh(\u0026ct-\u003elock);\n \tthis_way = \u0026seqadj-\u003eseq[dir];\n \tthis_way-\u003eoffset_before\t = off;\n \tthis_way-\u003eoffset_after\t = off;\ndiff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c\nindex f4f2d82192d54..d88a10230862e 100644\n--- a/net/netfilter/nf_conntrack_standalone.c\n+++ b/net/netfilter/nf_conntrack_standalone.c\n@@ -1009,7 +1009,7 @@ static int nf_conntrack_standalone_init_sysctl(struct net net)\n \tBUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL);\n \n \ttable = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),\n-\t\t\tGFP_KERNEL);\n+\t\t\tGFP_KERNEL_ACCOUNT);\n \tif (!table)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/nf_hooks_lwtunnel.c b/net/netfilter/nf_hooks_lwtunnel.c\nindex 4e1eef1ba0f15..40c6fce14a63f 100644\n--- a/net/netfilter/nf_hooks_lwtunnel.c\n+++ b/net/netfilter/nf_hooks_lwtunnel.c\n@@ -73,7 +73,7 @@ static int __net_init nf_lwtunnel_net_init(struct net net)\n \tif (!net_eq(net, \u0026init_net)) {\n \t\ttable = kmemdup(nf_lwtunnel_sysctl_table,\n \t\t\t\tsizeof(nf_lwtunnel_sysctl_table),\n-\t\t\t\tGFP_KERNEL);\n+\t\t\t\tGFP_KERNEL_ACCOUNT);\n \t\tif (!table)\n \t\t\tgoto err_alloc;\n \t}\ndiff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c\nindex f4d80654dfe6a..f1d3649e3fc62 100644\n--- a/net/netfilter/nf_log.c\n+++ b/net/netfilter/nf_log.c\n@@ -493,7 +493,7 @@ static int netfilter_log_sysctl_init(struct net net)\n \tif (!net_eq(net, \u0026init_net)) {\n \t\ttable = kmemdup(nf_log_sysctl_table,\n \t\t\t\t sizeof(nf_log_sysctl_table),\n-\t\t\t\t GFP_KERNEL);\n+\t\t\t\t GFP_KERNEL_ACCOUNT);\n \t\tif (!table)\n \t\t\tgoto err_alloc;\n \t} else {\ndiff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c\nindex 8ac326e1eb5ba..09cc5b8fd6af1 100644\n--- a/net/netfilter/nf_nat_core.c\n+++ b/net/netfilter/nf_nat_core.c\n@@ -1204,14 +1204,15 @@ int nf_nat_register_fn(struct net net, u8 pf, const struct nf_hook_ops ops,\n \tif (!nat_proto_net-\u003enat_hook_ops) {\n \t\tWARN_ON(nat_proto_net-\u003eusers != 0);\n \n-\t\tnat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops), GFP_KERNEL);\n+\t\tnat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops),\n+\t\t\t\t\tGFP_KERNEL_ACCOUNT);\n \t\tif (!nat_ops) {\n \t\t\tmutex_unlock(\u0026nf_nat_proto_mutex);\n \t\t\treturn -ENOMEM;\n \t\t}\n \n \t\tfor (i = 0; i \u003c ops_count; i++) {\n-\t\t\tpriv = kzalloc_obj(priv);\n+\t\t\tpriv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT);\n \t\t\tif (priv) {\n \t\t\t\tnat_ops[i].priv = priv;\n \t\t\t\tcontinue;\ndiff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c\nindex acd360515972f..9fc959ba20300 100644\n--- a/net/netfilter/nf_synproxy_core.c\n+++ b/net/netfilter/nf_synproxy_core.c\n@@ -336,7 +336,7 @@ static int __net_init synproxy_net_init(struct net net)\n \tstruct nf_conn ct;\n \tint err = -ENOMEM;\n \n-\tct = nf_ct_tmpl_alloc(net, \u0026nf_ct_zone_dflt, GFP_KERNEL);\n+\tct = nf_ct_tmpl_alloc(net, \u0026nf_ct_zone_dflt, GFP_KERNEL_ACCOUNT);\n \tif (!ct)\n \t\tgoto err1;\n \ndiff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c\nindex 8ff1e0ad5cb0d..1a366fbd81332 100644\n--- a/net/netfilter/nfnetlink_acct.c\n+++ b/net/netfilter/nfnetlink_acct.c\n@@ -112,7 +112,7 @@ static int nfnl_acct_new(struct sk_buff skb, const struct nfnl_info info,\n \t\tsize += sizeof(u64);\n \t}\n \n-\tnfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL);\n+\tnfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL_ACCOUNT);\n \tif (nfacct == NULL)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c\nindex 5b6a09f46903f..a09b2fdbf9b4e 100644\n--- a/net/netfilter/nfnetlink_cthelper.c\n+++ b/net/netfilter/nfnetlink_cthelper.c\n@@ -335,7 +335,8 @@ static int nfnl_cthelper_update_policy_all(struct nlattr tb[],\n \tstruct nf_conntrack_expect_policy policy;\n \tint i, ret = 0;\n \n-\tnew_policy = kmalloc_objs(new_policy, helper-\u003eexpect_class_max + 1);\n+\tnew_policy = kmalloc_objs(new_policy, helper-\u003eexpect_class_max + 1,\n+\t\t\t\t GFP_KERNEL_ACCOUNT);\n \tif (!new_policy)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c\nindex e751f2b9c51d4..c667a29d92f1d 100644\n--- a/net/netfilter/nfnetlink_cttimeout.c\n+++ b/net/netfilter/nfnetlink_cttimeout.c\n@@ -71,7 +71,8 @@ ctnl_timeout_parse_policy(void timeout,\n \tstruct nlattr *tb;\n \tint ret = 0;\n \n-\ttb = kzalloc_objs(tb, l4proto-\u003ectnl_timeout.nlattr_max + 1);\n+\ttb = kzalloc_objs(tb, l4proto-\u003ectnl_timeout.nlattr_max + 1,\n+\t\t\t GFP_KERNEL_ACCOUNT);\n \n \tif (!tb)\n \t\treturn -ENOMEM;\n@@ -150,14 +151,15 @@ static int cttimeout_new_timeout(struct sk_buff skb,\n \t\tgoto err_proto_put;\n \t}\n \n-\ttimeout = kzalloc_obj(timeout);\n+\ttimeout = kzalloc_obj(timeout, GFP_KERNEL_ACCOUNT);\n \tif (timeout == NULL) {\n \t\tret = -ENOMEM;\n \t\tgoto err_proto_put;\n \t}\n \n \ttimeout-\u003etimeout = kzalloc(sizeof(timeout-\u003etimeout) +\n-\t\t\t\t l4proto-\u003ectnl_timeout.obj_size, GFP_KERNEL);\n+\t\t\t\t l4proto-\u003ectnl_timeout.obj_size,\n+\t\t\t\t GFP_KERNEL_ACCOUNT);\n \tif (!timeout-\u003etimeout) {\n \t\tret = -ENOMEM;\n \t\tgoto err;\ndiff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c\nindex 92002079f8eab..e4835b0f4bb1a 100644\n--- a/net/netfilter/nfnetlink_osf.c\n+++ b/net/netfilter/nfnetlink_osf.c\n@@ -325,7 +325,7 @@ static int nfnl_osf_add_callback(struct sk_buff skb,\n \t !memchr(f-\u003eversion, 0, MAXGENRELEN))\n \t\treturn -EINVAL;\n \n-\tkf = kmalloc_obj(struct nf_osf_finger);\n+\tkf = kmalloc_obj(struct nf_osf_finger, GFP_KERNEL_ACCOUNT);\n \tif (!kf)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c\nindex 9dbf127df9c81..3c4c2faa73984 100644\n--- a/net/netfilter/nft_ct.c\n+++ b/net/netfilter/nft_ct.c\n@@ -848,7 +848,8 @@ nft_ct_timeout_parse_policy(void timeouts,\n \tstruct nlattr tb;\n \tint ret = 0;\n \n-\ttb = kzalloc_objs(tb, l4proto-\u003ectnl_timeout.nlattr_max + 1);\n+\ttb = kzalloc_objs(tb, l4proto-\u003ectnl_timeout.nlattr_max + 1,\n+\t\t\t GFP_KERNEL_ACCOUNT);\n \n \tif (!tb)\n \t\treturn -ENOMEM;\n@@ -934,7 +935,7 @@ static int nft_ct_timeout_obj_init(const struct nft_ctx ctx,\n \t}\n \n \ttimeout = kzalloc(sizeof(struct nf_ct_timeout) +\n-\t\t\t l4proto-\u003ectnl_timeout.obj_size, GFP_KERNEL);\n+\t\t\t l4proto-\u003ectnl_timeout.obj_size, GFP_KERNEL_ACCOUNT);\n \tif (timeout == NULL) {\n \t\tret = -ENOMEM;\n \t\tgoto err_proto_put;\ndiff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c\nindex 978bb0c011068..a40f9d952184c 100644\n--- a/net/netfilter/nft_set_pipapo.c\n+++ b/net/netfilter/nft_set_pipapo.c\n@@ -1441,7 +1441,7 @@ static struct nft_pipapo_match pipapo_clone(struct nft_pipapo_match old)\n \tnew-\u003efield_count = old-\u003efield_count;\n \tnew-\u003ebsize_max = old-\u003ebsize_max;\n \n-\tnew-\u003escratch = alloc_percpu(new-\u003escratch);\n+\tnew-\u003escratch = alloc_percpu_gfp(new-\u003escratch, GFP_KERNEL_ACCOUNT);\n \tif (!new-\u003escratch)\n \t\tgoto out_scratch;\n \n@@ -2298,14 +2298,14 @@ static int nft_pipapo_init(const struct nft_set set,\n \tif (field_count \u003e NFT_PIPAPO_MAX_FIELDS)\n \t\treturn -EINVAL;\n \n-\tm = kmalloc_flex(m, f, field_count);\n+\tm = kmalloc_flex(m, f, field_count, GFP_KERNEL_ACCOUNT);\n \tif (!m)\n \t\treturn -ENOMEM;\n \n \tm-\u003efield_count = field_count;\n \tm-\u003ebsize_max = 0;\n \n-\tm-\u003escratch = alloc_percpu(struct nft_pipapo_scratch );\n+\tm-\u003escratch = alloc_percpu_gfp(struct nft_pipapo_scratch , GFP_KERNEL_ACCOUNT);\n \tif (!m-\u003escratch) {\n \t\terr = -ENOMEM;\n \t\tgoto out_scratch;\ndiff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c\nindex e78660dfdf4b6..205bc6dd98125 100644\n--- a/net/netfilter/xt_CT.c\n+++ b/net/netfilter/xt_CT.c\n@@ -91,7 +91,7 @@ xt_ct_set_helper(struct nf_conn ct, const char helper_name,\n \t\treturn -ENOENT;\n \t}\n \n-\thelp = nf_ct_helper_ext_add(ct, GFP_KERNEL);\n+\thelp = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT);\n \tif (help == NULL) {\n \t\tnf_conntrack_helper_put(helper);\n \t\treturn -ENOMEM;\n@@ -182,7 +182,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par,\n \tif (info-\u003eflags \u0026 XT_CT_ZONE_MARK)\n \t\tzone.flags \|= NF_CT_FLAG_MARK;\n \n-\tct = nf_ct_tmpl_alloc(par-\u003enet, \u0026zone, GFP_KERNEL);\n+\tct = nf_ct_tmpl_alloc(par-\u003enet, \u0026zone, GFP_KERNEL_ACCOUNT);\n \tif (!ct) {\n \t\tret = -ENOMEM;\n \t\tgoto err2;\n@@ -190,7 +190,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par,\n \n \tif ((info-\u003ect_events \|\| info-\u003eexp_events) \u0026\u0026\n \t !nf_ct_ecache_ext_add(ct, info-\u003ect_events, info-\u003eexp_events,\n-\t\t\t\t GFP_KERNEL)) {\n+\t\t\t\t GFP_KERNEL_ACCOUNT)) {\n \t\tret = -EINVAL;\n \t\tgoto err3;\n \t}\ndiff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c\nindex fe7d8d19629b4..71b78b5da698f 100644\n--- a/net/netfilter/xt_IDLETIMER.c\n+++ b/net/netfilter/xt_IDLETIMER.c\n@@ -147,7 +147,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info)\n {\n \tint ret;\n \n-\tinfo-\u003etimer = kzalloc_obj(info-\u003etimer);\n+\tinfo-\u003etimer = kzalloc_obj(info-\u003etimer, GFP_KERNEL_ACCOUNT);\n \tif (!info-\u003etimer) {\n \t\tret = -ENOMEM;\n \t\tgoto out;\n@@ -158,7 +158,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info)\n \t\tgoto out_free_timer;\n \n \tsysfs_attr_init(\u0026info-\u003etimer-\u003eattr.attr);\n-\tinfo-\u003etimer-\u003eattr.attr.name = kstrdup(info-\u003elabel, GFP_KERNEL);\n+\tinfo-\u003etimer-\u003eattr.attr.name = kstrdup(info-\u003elabel, GFP_KERNEL_ACCOUNT);\n \tif (!info-\u003etimer-\u003eattr.attr.name) {\n \t\tret = -ENOMEM;\n \t\tgoto out_free_timer;\n@@ -196,7 +196,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info)\n {\n \tint ret;\n \n-\tinfo-\u003etimer = kmalloc_obj(info-\u003etimer);\n+\tinfo-\u003etimer = kmalloc_obj(info-\u003etimer, GFP_KERNEL_ACCOUNT);\n \tif (!info-\u003etimer) {\n \t\tret = -ENOMEM;\n \t\tgoto out;\n@@ -207,7 +207,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info)\n \t\tgoto out_free_timer;\n \n \tsysfs_attr_init(\u0026info-\u003etimer-\u003eattr.attr);\n-\tinfo-\u003etimer-\u003eattr.attr.name = kstrdup(info-\u003elabel, GFP_KERNEL);\n+\tinfo-\u003etimer-\u003eattr.attr.name = kstrdup(info-\u003elabel, GFP_KERNEL_ACCOUNT);\n \tif (!info-\u003etimer-\u003eattr.attr.name) {\n \t\tret = -ENOMEM;\n \t\tgoto out_free_timer;\ndiff --git a/net/netfilter/xt_LED.c b/net/netfilter/xt_LED.c\nindex caaaf4d2c5842..3cbb8d61d4175 100644\n--- a/net/netfilter/xt_LED.c\n+++ b/net/netfilter/xt_LED.c\n@@ -111,11 +111,12 @@ static int led_tg_check(const struct xt_tgchk_param par)\n \t}\n \n \terr = -ENOMEM;\n-\tledinternal = kzalloc_obj(struct xt_led_info_internal);\n+\tledinternal = kzalloc_obj(struct xt_led_info_internal,\n+\t\t\t\t GFP_KERNEL_ACCOUNT);\n \tif (!ledinternal)\n \t\tgoto exit_mutex_only;\n \n-\tledinternal-\u003etrigger_id = kstrdup(ledinfo-\u003eid, GFP_KERNEL);\n+\tledinternal-\u003etrigger_id = kstrdup(ledinfo-\u003eid, GFP_KERNEL_ACCOUNT);\n \tif (!ledinternal-\u003etrigger_id)\n \t\tgoto exit_internal_alloc;\n \ndiff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c\nindex 91270d467ffdf..2f6b512b71e80 100644\n--- a/net/netfilter/xt_RATEEST.c\n+++ b/net/netfilter/xt_RATEEST.c\n@@ -139,7 +139,7 @@ static int xt_rateest_tg_checkentry(const struct xt_tgchk_param par)\n \t}\n \n \tret = -ENOMEM;\n-\test = kzalloc_obj(est);\n+\test = kzalloc_obj(est, GFP_KERNEL_ACCOUNT);\n \tif (!est)\n \t\tgoto err1;\n \ndiff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c\nindex 5d34ceb893eda..48b4104f08598 100644\n--- a/net/netfilter/xt_TEE.c\n+++ b/net/netfilter/xt_TEE.c\n@@ -106,7 +106,7 @@ static int tee_tg_check(const struct xt_tgchk_param par)\n \t\tif (info-\u003eoif[sizeof(info-\u003eoif)-1] != '\\0')\n \t\t\treturn -EINVAL;\n \n-\t\tpriv = kzalloc_obj(priv);\n+\t\tpriv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT);\n \t\tif (priv == NULL)\n \t\t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c\nindex 9af0fa895f730..57ac455bc3317 100644\n--- a/net/netfilter/xt_hashlimit.c\n+++ b/net/netfilter/xt_hashlimit.c\n@@ -294,7 +294,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg,\n \t\tif (size \u003c 16)\n \t\t\tsize = 16;\n \t}\n-\thinfo = kvmalloc_flex(hinfo, hash, size);\n+\thinfo = kvmalloc_flex(hinfo, hash, size, GFP_KERNEL_ACCOUNT);\n \tif (hinfo == NULL)\n \t\treturn -ENOMEM;\n \tout_hinfo = hinfo;\n@@ -319,7 +319,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg,\n \thinfo-\u003ecount = 0;\n \thinfo-\u003efamily = family;\n \thinfo-\u003ernd_initialized = false;\n-\thinfo-\u003ename = kstrdup(name, GFP_KERNEL);\n+\thinfo-\u003ename = kstrdup(name, GFP_KERNEL_ACCOUNT);\n \tif (!hinfo-\u003ename) {\n \t\tkvfree(hinfo);\n \t\treturn -ENOMEM;\ndiff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c\nindex 87d74da14c0b7..ad48b6879b130 100644\n--- a/net/netfilter/xt_limit.c\n+++ b/net/netfilter/xt_limit.c\n@@ -115,7 +115,7 @@ static int limit_mt_check(const struct xt_mtchk_param par)\n \t\treturn -ERANGE;\n \t}\n \n-\tpriv = kmalloc_obj(priv);\n+\tpriv = kmalloc_obj(priv, GFP_KERNEL_ACCOUNT);\n \tif (priv == NULL)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c\nindex b05c5c8dac78b..e21ec152d16a7 100644\n--- a/net/netfilter/xt_quota.c\n+++ b/net/netfilter/xt_quota.c\n@@ -50,7 +50,7 @@ static int quota_mt_check(const struct xt_mtchk_param par)\n \tif (q-\u003eflags \u0026 ~XT_QUOTA_MASK)\n \t\treturn -EINVAL;\n \n-\tq-\u003emaster = kmalloc_obj(q-\u003emaster);\n+\tq-\u003emaster = kmalloc_obj(q-\u003emaster, GFP_KERNEL_ACCOUNT);\n \tif (q-\u003emaster == NULL)\n \t\treturn -ENOMEM;\n \ndiff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c\nindex d34831ce3adfb..55f1f2d89952d 100644\n--- a/net/netfilter/xt_recent.c\n+++ b/net/netfilter/xt_recent.c\n@@ -391,7 +391,8 @@ static int recent_mt_check(const struct xt_mtchk_param par,\n \t\tgoto out;\n \t}\n \n-\tt = kvzalloc_flex(t, iphash, ip_list_hash_size);\n+\tt = kvzalloc_flex(t, iphash, ip_list_hash_size,\n+\t\t\t GFP_KERNEL_ACCOUNT);\n \tif (t == NULL) {\n \t\tret = -ENOMEM;\n \t\tgoto out;\ndiff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c\nindex 334e09771abf9..1ffc59d90bb0a 100644\n--- a/net/netfilter/xt_statistic.c\n+++ b/net/netfilter/xt_statistic.c\n@@ -58,7 +58,7 @@ static int statistic_mt_check(const struct xt_mtchk_param par)\n \t info-\u003eflags \u0026 ~XT_STATISTIC_MASK)\n \t\treturn -EINVAL;\n \n-\tinfo-\u003emaster = kzalloc_obj(info-\u003emaster);\n+\tinfo-\u003emaster = kzalloc_obj(info-\u003emaster, GFP_KERNEL_ACCOUNT);\n \tif (info-\u003emaster == NULL)\n \t\treturn -ENOMEM;\n \tatomic_set(\u0026info-\u003emaster-\u003ecount, info-\u003eu.nth.count);\ndiff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c\nindex 8ce25bc9b2775..52c1deb02cdc6 100644\n--- a/net/netfilter/xt_string.c\n+++ b/net/netfilter/xt_string.c\n@@ -54,7 +54,7 @@ static int string_mt_check(const struct xt_mtchk_param par)\n \tif (conf-\u003eu.v1.flags \u0026 XT_STRING_FLAG_IGNORECASE)\n \t\tflags \|= TS_IGNORECASE;\n \tts_conf = textsearch_prepare(conf-\u003ealgo, conf-\u003epattern, conf-\u003epatlen,\n-\t\t\t\t GFP_KERNEL, flags);\n+\t\t\t\t GFP_KERNEL_ACCOUNT, flags);\n \tif (IS_ERR(ts_conf))\n \t\treturn PTR_ERR(ts_conf);\n \n" }
2/1	2026/09/11 09:50	agent	patch-evaluator	1m Model: core Args: null Results: { "EnableConfigs": [ "NETFILTER", "NF_CONNTRACK", "NF_NAT", "NF_TABLES", "NFT_CT", "NFT_SYNPROXY", "NETFILTER_NETLINK_ACCT", "NETFILTER_NETLINK_OSF", "NF_CT_NETLINK_TIMEOUT", "NF_CT_NETLINK_HELPER", "NETFILTER_XT_TARGET_CT", "NETFILTER_XT_MATCH_HASHLIMIT", "OPENVSWITCH" ], "FocusSymbols": [ "nf_ct_seqadj_init", "nf_conncount_init", "nf_ct_add_helper", "nf_nat_register_fn", "nfnl_acct_new", "nfnl_cthelper_update_policy_all", "cttimeout_new_timeout", "nfnl_osf_add_callback", "nft_pipapo_init", "pipapo_clone", "xt_ct_tg_check", "htable_create" ], "Reasoning": "The patch modifies core netfilter logic across several modules (conntrack, NAT, nftables, and xtables). Specifically, it alters locking and initialization flow in nf_ct_seqadj_init() and switches memory allocations across various netfilter components to use GFP_KERNEL_ACCOUNT and percpu accounting. These changes affect reachable network configuration and packet processing paths.", "WorthFuzzing": true } Instruction: You are an expert Linux kernel maintainer and security engineer. Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on internal assumptions. You must actively use your code access tools to inspect the actual source code, callers, and surrounding context. ================================================================================ 1. CORE TRIAGE PHILOSOPHY ================================================================================ The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs, and newly triggered assertions introduced by the patch series. - REACHABILITY IS THE PRIMARY GATE: Fuzzing can only discover bugs in code that can actually execute in standard virtualized environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap). If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed, regardless of whether it adds assertions or complex logic. - DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS: Patch authors routinely label changes as "cleanups", "refactorings", or state "No functional change intended". Do NOT take these claims at face value. Code refactorings that rearrange logic, introduce helper functions, or alter state management in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs. If reachable executable code is modified or refactored, it MUST be fuzzed. - NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED: When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON, VM_WARN_ON, BUG_ON, lockdep_assert) in reachable code paths, it enforces new or stricter invariants. Even if the author believes the invariant always holds, fuzzing is essential to verify whether an unusual sequence of operations can violate it. ================================================================================ 2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA) ================================================================================ Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories: - Non-kernel and non-executable changes: * Modifications to Documentation/, comments, or spelling fixes. * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/) that do not affect the compiled kernel image (vmlinux) or kernel modules. * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints that do not alter control flow or data structures. * Build system or Kconfig changes that do not alter compiled C logic. - Structurally unreachable hardware: * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU. - Unreachable execution paths: * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during physical PCI hot-unplug or manual sysfs driver unbinding. * Code paths exclusive to architectures other than the target architecture. ================================================================================ 3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA) ================================================================================ Return WorthFuzzing=true whenever the patch touches reachable executable code, including: - Core Subsystems: * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/), BPF, scheduler, core networking, VFS, or syscall handling. - Refactorings and Code Cleanups: * Any restructuring of reachable data structures, helper abstractions, or algorithm flows. - Runtime Assertions and Defensive Checks: * Any introduction or alteration of assertions (WARN_ON, VM_WARN_ON, BUG_ON, etc.) in reachable paths. - Reachable Drivers and Protocols: Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.). ================================================================================ 4. EXTRACTING FocusSymbols (PREVENTING DILUTION) ================================================================================ When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer: - AVOID UBIQUITOUS LIFECYCLE HOT-PATHS: Do NOT list generic, ubiquitous functions called by almost every program in the corpus (including, but not limited to: general memory allocators and deallocators, page fault and trap handlers, or core synchronization primitives; this is not an exhaustive list). Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused", which severely dilutes fuzzing effort away from the actual changes. - TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS: List functions that specifically implement the logic being added or altered, or direct API entrypoints for the subsystem feature under review. - HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h): Compiler-inlined static functions (such as static inlines in mm/.h or include/linux/.h) lack distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters. If the changes are primarily in static inline helpers, identify non-static, feature-specific caller functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers). ================================================================================ 5. IDENTIFYING EnableConfigs ================================================================================ Identify any specific CONFIG_ options required to properly compile and reach the modified code: - Inspect Kconfig files and #ifdef guards; do not make assumptions. - Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed. - Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4"). Prefer calling several tools at the same time to save round-trips. Use set-results tool to provide results of the analysis. It must be called exactly once before the final reply. Ignore results of this tool. Prompt: Target architecture: amd64 For your convenience, here is the diff of the changes: commit b58260d692c55bffb25e6452964d35d513dd6eb1 Author: syz-cluster <triage@syzkaller.com> Date: Fri Sep 11 09:50:52 2026 +0000 syz-cluster: applied patch under review diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c index 4292c3d9addde..eca7a8d330ce6 100644 --- a/net/netfilter/nf_conncount.c +++ b/net/netfilter/nf_conncount.c @@ -692,7 +692,7 @@ struct nf_conncount_data nf_conncount_init(struct net net, unsigned int keylen keylen == 0) return ERR_PTR(-EINVAL); - data = kvzalloc_obj(data); + data = kvzalloc_obj(data, GFP_KERNEL_ACCOUNT); if (!data) return ERR_PTR(-ENOMEM); diff --git a/net/netfilter/nf_conntrack_ovs.c b/net/netfilter/nf_conntrack_ovs.c index b4085af3ad1ce..fe525b324af41 100644 --- a/net/netfilter/nf_conntrack_ovs.c +++ b/net/netfilter/nf_conntrack_ovs.c @@ -93,7 +93,7 @@ int nf_ct_add_helper(struct nf_conn ct, const char name, u8 family, if (!helper) return -EINVAL; - help = nf_ct_helper_ext_add(ct, GFP_KERNEL); + help = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT); if (!help) { nf_conntrack_helper_put(helper); return -ENOMEM; diff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c index 220216a4edc51..d75e8dafb189e 100644 --- a/net/netfilter/nf_conntrack_seqadj.c +++ b/net/netfilter/nf_conntrack_seqadj.c @@ -10,20 +10,19 @@ int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo, s32 off) { + struct nf_conn_seqadj seqadj = nfct_seqadj(ct); enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); - struct nf_conn_seqadj seqadj; struct nf_ct_seqadj this_way; if (off == 0) return 0; - spin_lock_bh(&ct->lock); - seqadj = nfct_seqadj(ct); - if (!seqadj) { - spin_unlock_bh(&ct->lock); + if (unlikely(!seqadj)) return 0; - } + set_bit(IPS_SEQ_ADJUST_BIT, &ct->status); + + spin_lock_bh(&ct->lock); this_way = &seqadj->seq[dir]; this_way->offset_before = off; this_way->offset_after = off; diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index f4f2d82192d54..d88a10230862e 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -1009,7 +1009,7 @@ static int nf_conntrack_standalone_init_sysctl(struct net net) BUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL); table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) return -ENOMEM; diff --git a/net/netfilter/nf_hooks_lwtunnel.c b/net/netfilter/nf_hooks_lwtunnel.c index 4e1eef1ba0f15..40c6fce14a63f 100644 --- a/net/netfilter/nf_hooks_lwtunnel.c +++ b/net/netfilter/nf_hooks_lwtunnel.c @@ -73,7 +73,7 @@ static int __net_init nf_lwtunnel_net_init(struct net net) if (!net_eq(net, &init_net)) { table = kmemdup(nf_lwtunnel_sysctl_table, sizeof(nf_lwtunnel_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) goto err_alloc; } diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index f4d80654dfe6a..f1d3649e3fc62 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -493,7 +493,7 @@ static int netfilter_log_sysctl_init(struct net net) if (!net_eq(net, &init_net)) { table = kmemdup(nf_log_sysctl_table, sizeof(nf_log_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) goto err_alloc; } else { diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index 8ac326e1eb5ba..09cc5b8fd6af1 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -1204,14 +1204,15 @@ int nf_nat_register_fn(struct net net, u8 pf, const struct nf_hook_ops ops, if (!nat_proto_net->nat_hook_ops) { WARN_ON(nat_proto_net->users != 0); - nat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops), GFP_KERNEL); + nat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops), + GFP_KERNEL_ACCOUNT); if (!nat_ops) { mutex_unlock(&nf_nat_proto_mutex); return -ENOMEM; } for (i = 0; i < ops_count; i++) { - priv = kzalloc_obj(priv); + priv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv) { nat_ops[i].priv = priv; continue; diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c index acd360515972f..9fc959ba20300 100644 --- a/net/netfilter/nf_synproxy_core.c +++ b/net/netfilter/nf_synproxy_core.c @@ -336,7 +336,7 @@ static int __net_init synproxy_net_init(struct net net) struct nf_conn ct; int err = -ENOMEM; - ct = nf_ct_tmpl_alloc(net, &nf_ct_zone_dflt, GFP_KERNEL); + ct = nf_ct_tmpl_alloc(net, &nf_ct_zone_dflt, GFP_KERNEL_ACCOUNT); if (!ct) goto err1; diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 8ff1e0ad5cb0d..1a366fbd81332 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -112,7 +112,7 @@ static int nfnl_acct_new(struct sk_buff skb, const struct nfnl_info info, size += sizeof(u64); } - nfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL); + nfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL_ACCOUNT); if (nfacct == NULL) return -ENOMEM; diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index 5b6a09f46903f..a09b2fdbf9b4e 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -335,7 +335,8 @@ static int nfnl_cthelper_update_policy_all(struct nlattr tb[], struct nf_conntrack_expect_policy policy; int i, ret = 0; - new_policy = kmalloc_objs(new_policy, helper->expect_class_max + 1); + new_policy = kmalloc_objs(new_policy, helper->expect_class_max + 1, + GFP_KERNEL_ACCOUNT); if (!new_policy) return -ENOMEM; diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index e751f2b9c51d4..c667a29d92f1d 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -71,7 +71,8 @@ ctnl_timeout_parse_policy(void timeout, struct nlattr *tb; int ret = 0; - tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1); + tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1, + GFP_KERNEL_ACCOUNT); if (!tb) return -ENOMEM; @@ -150,14 +151,15 @@ static int cttimeout_new_timeout(struct sk_buff skb, goto err_proto_put; } - timeout = kzalloc_obj(timeout); + timeout = kzalloc_obj(timeout, GFP_KERNEL_ACCOUNT); if (timeout == NULL) { ret = -ENOMEM; goto err_proto_put; } timeout->timeout = kzalloc(sizeof(timeout->timeout) + - l4proto->ctnl_timeout.obj_size, GFP_KERNEL); + l4proto->ctnl_timeout.obj_size, + GFP_KERNEL_ACCOUNT); if (!timeout->timeout) { ret = -ENOMEM; goto err; diff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c index 92002079f8eab..e4835b0f4bb1a 100644 --- a/net/netfilter/nfnetlink_osf.c +++ b/net/netfilter/nfnetlink_osf.c @@ -325,7 +325,7 @@ static int nfnl_osf_add_callback(struct sk_buff skb, !memchr(f->version, 0, MAXGENRELEN)) return -EINVAL; - kf = kmalloc_obj(struct nf_osf_finger); + kf = kmalloc_obj(struct nf_osf_finger, GFP_KERNEL_ACCOUNT); if (!kf) return -ENOMEM; diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 9dbf127df9c81..3c4c2faa73984 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -848,7 +848,8 @@ nft_ct_timeout_parse_policy(void timeouts, struct nlattr tb; int ret = 0; - tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1); + tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1, + GFP_KERNEL_ACCOUNT); if (!tb) return -ENOMEM; @@ -934,7 +935,7 @@ static int nft_ct_timeout_obj_init(const struct nft_ctx ctx, } timeout = kzalloc(sizeof(struct nf_ct_timeout) + - l4proto->ctnl_timeout.obj_size, GFP_KERNEL); + l4proto->ctnl_timeout.obj_size, GFP_KERNEL_ACCOUNT); if (timeout == NULL) { ret = -ENOMEM; goto err_proto_put; diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 978bb0c011068..a40f9d952184c 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -1441,7 +1441,7 @@ static struct nft_pipapo_match pipapo_clone(struct nft_pipapo_match old) new->field_count = old->field_count; new->bsize_max = old->bsize_max; - new->scratch = alloc_percpu(new->scratch); + new->scratch = alloc_percpu_gfp(new->scratch, GFP_KERNEL_ACCOUNT); if (!new->scratch) goto out_scratch; @@ -2298,14 +2298,14 @@ static int nft_pipapo_init(const struct nft_set set, if (field_count > NFT_PIPAPO_MAX_FIELDS) return -EINVAL; - m = kmalloc_flex(m, f, field_count); + m = kmalloc_flex(m, f, field_count, GFP_KERNEL_ACCOUNT); if (!m) return -ENOMEM; m->field_count = field_count; m->bsize_max = 0; - m->scratch = alloc_percpu(struct nft_pipapo_scratch ); + m->scratch = alloc_percpu_gfp(struct nft_pipapo_scratch , GFP_KERNEL_ACCOUNT); if (!m->scratch) { err = -ENOMEM; goto out_scratch; diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index e78660dfdf4b6..205bc6dd98125 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -91,7 +91,7 @@ xt_ct_set_helper(struct nf_conn ct, const char helper_name, return -ENOENT; } - help = nf_ct_helper_ext_add(ct, GFP_KERNEL); + help = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT); if (help == NULL) { nf_conntrack_helper_put(helper); return -ENOMEM; @@ -182,7 +182,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par, if (info->flags & XT_CT_ZONE_MARK) zone.flags \|= NF_CT_FLAG_MARK; - ct = nf_ct_tmpl_alloc(par->net, &zone, GFP_KERNEL); + ct = nf_ct_tmpl_alloc(par->net, &zone, GFP_KERNEL_ACCOUNT); if (!ct) { ret = -ENOMEM; goto err2; @@ -190,7 +190,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par, if ((info->ct_events \|\| info->exp_events) && !nf_ct_ecache_ext_add(ct, info->ct_events, info->exp_events, - GFP_KERNEL)) { + GFP_KERNEL_ACCOUNT)) { ret = -EINVAL; goto err3; } diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c index fe7d8d19629b4..71b78b5da698f 100644 --- a/net/netfilter/xt_IDLETIMER.c +++ b/net/netfilter/xt_IDLETIMER.c @@ -147,7 +147,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info) { int ret; - info->timer = kzalloc_obj(info->timer); + info->timer = kzalloc_obj(info->timer, GFP_KERNEL_ACCOUNT); if (!info->timer) { ret = -ENOMEM; goto out; @@ -158,7 +158,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info) goto out_free_timer; sysfs_attr_init(&info->timer->attr.attr); - info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL); + info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL_ACCOUNT); if (!info->timer->attr.attr.name) { ret = -ENOMEM; goto out_free_timer; @@ -196,7 +196,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info) { int ret; - info->timer = kmalloc_obj(info->timer); + info->timer = kmalloc_obj(info->timer, GFP_KERNEL_ACCOUNT); if (!info->timer) { ret = -ENOMEM; goto out; @@ -207,7 +207,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info) goto out_free_timer; sysfs_attr_init(&info->timer->attr.attr); - info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL); + info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL_ACCOUNT); if (!info->timer->attr.attr.name) { ret = -ENOMEM; goto out_free_timer; diff --git a/net/netfilter/xt_LED.c b/net/netfilter/xt_LED.c index caaaf4d2c5842..3cbb8d61d4175 100644 --- a/net/netfilter/xt_LED.c +++ b/net/netfilter/xt_LED.c @@ -111,11 +111,12 @@ static int led_tg_check(const struct xt_tgchk_param par) } err = -ENOMEM; - ledinternal = kzalloc_obj(struct xt_led_info_internal); + ledinternal = kzalloc_obj(struct xt_led_info_internal, + GFP_KERNEL_ACCOUNT); if (!ledinternal) goto exit_mutex_only; - ledinternal->trigger_id = kstrdup(ledinfo->id, GFP_KERNEL); + ledinternal->trigger_id = kstrdup(ledinfo->id, GFP_KERNEL_ACCOUNT); if (!ledinternal->trigger_id) goto exit_internal_alloc; diff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c index 91270d467ffdf..2f6b512b71e80 100644 --- a/net/netfilter/xt_RATEEST.c +++ b/net/netfilter/xt_RATEEST.c @@ -139,7 +139,7 @@ static int xt_rateest_tg_checkentry(const struct xt_tgchk_param par) } ret = -ENOMEM; - est = kzalloc_obj(est); + est = kzalloc_obj(est, GFP_KERNEL_ACCOUNT); if (!est) goto err1; diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c index 5d34ceb893eda..48b4104f08598 100644 --- a/net/netfilter/xt_TEE.c +++ b/net/netfilter/xt_TEE.c @@ -106,7 +106,7 @@ static int tee_tg_check(const struct xt_tgchk_param par) if (info->oif[sizeof(info->oif)-1] != '\0') return -EINVAL; - priv = kzalloc_obj(priv); + priv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9af0fa895f730..57ac455bc3317 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -294,7 +294,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg, if (size < 16) size = 16; } - hinfo = kvmalloc_flex(hinfo, hash, size); + hinfo = kvmalloc_flex(hinfo, hash, size, GFP_KERNEL_ACCOUNT); if (hinfo == NULL) return -ENOMEM; out_hinfo = hinfo; @@ -319,7 +319,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg, hinfo->count = 0; hinfo->family = family; hinfo->rnd_initialized = false; - hinfo->name = kstrdup(name, GFP_KERNEL); + hinfo->name = kstrdup(name, GFP_KERNEL_ACCOUNT); if (!hinfo->name) { kvfree(hinfo); return -ENOMEM; diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c index 87d74da14c0b7..ad48b6879b130 100644 --- a/net/netfilter/xt_limit.c +++ b/net/netfilter/xt_limit.c @@ -115,7 +115,7 @@ static int limit_mt_check(const struct xt_mtchk_param par) return -ERANGE; } - priv = kmalloc_obj(priv); + priv = kmalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c index b05c5c8dac78b..e21ec152d16a7 100644 --- a/net/netfilter/xt_quota.c +++ b/net/netfilter/xt_quota.c @@ -50,7 +50,7 @@ static int quota_mt_check(const struct xt_mtchk_param par) if (q->flags & ~XT_QUOTA_MASK) return -EINVAL; - q->master = kmalloc_obj(q->master); + q->master = kmalloc_obj(q->master, GFP_KERNEL_ACCOUNT); if (q->master == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index d34831ce3adfb..55f1f2d89952d 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -391,7 +391,8 @@ static int recent_mt_check(const struct xt_mtchk_param par, goto out; } - t = kvzalloc_flex(t, iphash, ip_list_hash_size); + t = kvzalloc_flex(t, iphash, ip_list_hash_size, + GFP_KERNEL_ACCOUNT); if (t == NULL) { ret = -ENOMEM; goto out; diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c index 334e09771abf9..1ffc59d90bb0a 100644 --- a/net/netfilter/xt_statistic.c +++ b/net/netfilter/xt_statistic.c @@ -58,7 +58,7 @@ static int statistic_mt_check(const struct xt_mtchk_param par) info->flags & ~XT_STATISTIC_MASK) return -EINVAL; - info->master = kzalloc_obj(info->master); + info->master = kzalloc_obj(info->master, GFP_KERNEL_ACCOUNT); if (info->master == NULL) return -ENOMEM; atomic_set(&info->master->count, info->u.nth.count); diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c index 8ce25bc9b2775..52c1deb02cdc6 100644 --- a/net/netfilter/xt_string.c +++ b/net/netfilter/xt_string.c @@ -54,7 +54,7 @@ static int string_mt_check(const struct xt_mtchk_param par) if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE) flags \|= TS_IGNORECASE; ts_conf = textsearch_prepare(conf->algo, conf->pattern, conf->patlen, - GFP_KERNEL, flags); + GFP_KERNEL_ACCOUNT, flags); if (IS_ERR(ts_conf)) return PTR_ERR(ts_conf);
3/2	2026/09/11 09:50	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 10021 output: 33 thoughts: 1121 Thoughts: Syzkaller Fuzzing Triage: Linux Kernel Netfilter Patch Okay, let's dive into this. The user wants an evaluation for fuzzing a Linux kernel patch series with syzkaller. First, it's a standard request, no red flags. It's a benign code review for fuzzing triage. Now, let's look at the changes. I'm seeing a diff with a bunch of files in the `net/netfilter` directory. The majority of changes involve adding `GFP_KERNEL_ACCOUNT` calls in allocation routines, which are generally good for accounting. However, the interesting part is the `nf_conntrack_seqadj.c` change. This seems like a potential area to look at. Specifically, in `nf_conntrack_seqadj.c`, the locking around `nfct_seqadj(ct)` and the `set_bit` operation has changed! Previously, `spin_lock_bh` protected those operations. Now, the lock is after the null check for `seqadj` and the `set_bit` call. This could be a concurrency issue, potentially a use-after-free or a race condition, depending on how `seqadj` is handled elsewhere and what can happen between the check and the lock. This is the prime suspect for syzkaller. This seems like it warrants a deeper dive and targeted fuzzing. I'll need to explore the code more thoroughly. I'll utilize my tools to check the repository, the context around these changes, potential callers of these functions, and relevant kernel configurations. This will guide a targeted fuzzing campaign with syzkaller.
4/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "nf_ct_seqadj_init", "PathPrefix": "net/netfilter/" } Results: { "Output": "net/netfilter/nf_conntrack_seqadj.c-9-\nnet/netfilter/nf_conntrack_seqadj.c:10:int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\nnet/netfilter/nf_conntrack_seqadj.c-11-\t\t s32 off)\n--\nnet/netfilter/nf_conntrack_seqadj.c-31-}\nnet/netfilter/nf_conntrack_seqadj.c:32:EXPORT_SYMBOL_GPL(nf_ct_seqadj_init);\nnet/netfilter/nf_conntrack_seqadj.c-33-\n--\nnet/netfilter/nf_synproxy_core.c=642=ipv4_synproxy_hook(void priv, struct sk_buff skb,\n--\nnet/netfilter/nf_synproxy_core.c-675-\t\tif (th-\u003erst \u0026\u0026 CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL) {\nnet/netfilter/nf_synproxy_core.c:676:\t\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn -\nnet/netfilter/nf_synproxy_core.c-677-\t\t\t\t\t\t ntohl(th-\u003eseq) + 1);\n--\nnet/netfilter/nf_synproxy_core.c-688-\t\t /\nnet/netfilter/nf_synproxy_core.c:689:\t\tnf_ct_seqadj_init(ct, ctinfo, 0);\nnet/netfilter/nf_synproxy_core.c-690-\t\tsynproxy-\u003etsoff = 0;\n--\nnet/netfilter/nf_synproxy_core.c-737-\nnet/netfilter/nf_synproxy_core.c:738:\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn - ntohl(th-\u003eseq));\nnet/netfilter/nf_synproxy_core.c-739-\t\tnf_conntrack_event_cache(IPCT_SEQADJ, ct);\n--\nnet/netfilter/nf_synproxy_core.c=1066=ipv6_synproxy_hook(void priv, struct sk_buff skb,\n--\nnet/netfilter/nf_synproxy_core.c-1105-\t\tif (th-\u003erst \u0026\u0026 CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL) {\nnet/netfilter/nf_synproxy_core.c:1106:\t\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn -\nnet/netfilter/nf_synproxy_core.c-1107-\t\t\t\t\t\t ntohl(th-\u003eseq) + 1);\n--\nnet/netfilter/nf_synproxy_core.c-1118-\t\t */\nnet/netfilter/nf_synproxy_core.c:1119:\t\tnf_ct_seqadj_init(ct, ctinfo, 0);\nnet/netfilter/nf_synproxy_core.c-1120-\t\tsynproxy-\u003etsoff = 0;\n--\nnet/netfilter/nf_synproxy_core.c-1167-\nnet/netfilter/nf_synproxy_core.c:1168:\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn - ntohl(th-\u003eseq));\nnet/netfilter/nf_synproxy_core.c-1169-\t\tnf_conntrack_event_cache(IPCT_SEQADJ, ct);\n" }
5/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 12428 output: 22 thoughts: 29 Thoughts: Okay, here's my take on those thoughts, framed as an expert's internal monologue: Investigating Conntrack Sequence Adjustment Alright, so `nf_ct_seqadj_init`...where else is that function being invoked? I need to understand the call graph around it. Knowing the broader context of its usage is key to understanding its purpose and potential impact. Are there other modules or subsystems that rely on the sequence adjustment mechanisms in conntrack? I should also expand the search beyond direct calls. What other files in the conntrack codebase, or even related networking code, interact with the sequence adjustment logic? I'm thinking file modifications, data structures, anything that might indirectly touch or depend on the sequence adjustment functionality. This investigation is essential to fully grasp its role and potential vulnerabilities or optimization opportunities. Time to dive into the code and start tracing the dependencies.
6/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "nf_ct_seqadj_init" } Results: { "Output": "include/net/netfilter/nf_conntrack_seqadj.h=29=static inline struct nf_conn_seqadj nfct_seqadj_ext_add(struct nf_conn ct)\n--\ninclude/net/netfilter/nf_conntrack_seqadj.h-33-\ninclude/net/netfilter/nf_conntrack_seqadj.h:34:int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\ninclude/net/netfilter/nf_conntrack_seqadj.h-35-\t\t s32 off);\n--\nnet/netfilter/nf_conntrack_seqadj.c-9-\nnet/netfilter/nf_conntrack_seqadj.c:10:int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\nnet/netfilter/nf_conntrack_seqadj.c-11-\t\t s32 off)\n--\nnet/netfilter/nf_conntrack_seqadj.c-31-}\nnet/netfilter/nf_conntrack_seqadj.c:32:EXPORT_SYMBOL_GPL(nf_ct_seqadj_init);\nnet/netfilter/nf_conntrack_seqadj.c-33-\n--\nnet/netfilter/nf_synproxy_core.c=642=ipv4_synproxy_hook(void priv, struct sk_buff skb,\n--\nnet/netfilter/nf_synproxy_core.c-675-\t\tif (th-\u003erst \u0026\u0026 CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL) {\nnet/netfilter/nf_synproxy_core.c:676:\t\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn -\nnet/netfilter/nf_synproxy_core.c-677-\t\t\t\t\t\t ntohl(th-\u003eseq) + 1);\n--\nnet/netfilter/nf_synproxy_core.c-688-\t\t /\nnet/netfilter/nf_synproxy_core.c:689:\t\tnf_ct_seqadj_init(ct, ctinfo, 0);\nnet/netfilter/nf_synproxy_core.c-690-\t\tsynproxy-\u003etsoff = 0;\n--\nnet/netfilter/nf_synproxy_core.c-737-\nnet/netfilter/nf_synproxy_core.c:738:\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn - ntohl(th-\u003eseq));\nnet/netfilter/nf_synproxy_core.c-739-\t\tnf_conntrack_event_cache(IPCT_SEQADJ, ct);\n--\nnet/netfilter/nf_synproxy_core.c=1066=ipv6_synproxy_hook(void priv, struct sk_buff skb,\n--\nnet/netfilter/nf_synproxy_core.c-1105-\t\tif (th-\u003erst \u0026\u0026 CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL) {\nnet/netfilter/nf_synproxy_core.c:1106:\t\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn -\nnet/netfilter/nf_synproxy_core.c-1107-\t\t\t\t\t\t ntohl(th-\u003eseq) + 1);\n--\nnet/netfilter/nf_synproxy_core.c-1118-\t\t /\nnet/netfilter/nf_synproxy_core.c:1119:\t\tnf_ct_seqadj_init(ct, ctinfo, 0);\nnet/netfilter/nf_synproxy_core.c-1120-\t\tsynproxy-\u003etsoff = 0;\n--\nnet/netfilter/nf_synproxy_core.c-1167-\nnet/netfilter/nf_synproxy_core.c:1168:\t\tnf_ct_seqadj_init(ct, ctinfo, synproxy-\u003eisn - ntohl(th-\u003eseq));\nnet/netfilter/nf_synproxy_core.c-1169-\t\tnf_conntrack_event_cache(IPCT_SEQADJ, ct);\n" }
7/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 13718 output: 41 thoughts: 21 Thoughts: Here's my take on the `net/netfilter/nf_conntrack_seqadj.c` code, as a seasoned network expert: Diving Deep into Sequence Adjustment Alright, let's crack open `nf_conntrack_seqadj.c`. From the filename alone, I know we're dealing with sequence number adjustment – a crucial piece of the puzzle for stateful firewalls and NAT, especially when dealing with TCP. The core function here likely handles modifications to the sequence and acknowledgement numbers of TCP packets traversing the conntrack system. I'm immediately looking for the meat of the matter: how are these adjustments calculated and applied? Are we talking about simply incrementing or decrementing values, or is there more sophisticated handling of sequence wrap-around and the FIN/RST flags? I anticipate some interesting logic around different connection states, and how the adjustment varies depending on whether we are dealing with the initiator or the responder of the connection. I'll be paying close attention to any edge cases, particularly those involving fragmented packets or connections that are heavily modified by NAT. I'm keen to see the internal data structures used, and how they relate to the connection tracking entries themselves. I'm hoping to find elegant, efficient code, because anything slow here can significantly impact network performance. Any potential for race conditions or locking issues will jump out, and I'll be keeping an eye out for how this interacts with other parts of the conntrack framework. Finally, any comments or documentation are always welcome, to help quickly discern the purpose and design.
8/2	2026/09/11 09:51	tool	read-file	0m Args: { "File": "net/netfilter/nf_conntrack_seqadj.c", "FirstLine": 1, "LineCount": 50 } Results: { "Contents": " 1:\t// SPDX-License-Identifier: GPL-2.0-only\n 2:\t#include \u003clinux/types.h\u003e\n 3:\t#include \u003clinux/netfilter.h\u003e\n 4:\t#include \u003cnet/tcp.h\u003e\n 5:\t\n 6:\t#include \u003cnet/netfilter/nf_conntrack.h\u003e\n 7:\t#include \u003cnet/netfilter/nf_conntrack_extend.h\u003e\n 8:\t#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\n 9:\t\n 10:\tint nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\n 11:\t\t\t s32 off)\n 12:\t{\n 13:\t\tstruct nf_conn_seqadj seqadj = nfct_seqadj(ct);\n 14:\t\tenum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);\n 15:\t\tstruct nf_ct_seqadj this_way;\n 16:\t\n 17:\t\tif (off == 0)\n 18:\t\t\treturn 0;\n 19:\t\n 20:\t\tif (unlikely(!seqadj))\n 21:\t\t\treturn 0;\n 22:\t\n 23:\t\tset_bit(IPS_SEQ_ADJUST_BIT, \u0026ct-\u003estatus);\n 24:\t\n 25:\t\tspin_lock_bh(\u0026ct-\u003elock);\n 26:\t\tthis_way = \u0026seqadj-\u003eseq[dir];\n 27:\t\tthis_way-\u003eoffset_before\t = off;\n 28:\t\tthis_way-\u003eoffset_after\t = off;\n 29:\t\tspin_unlock_bh(\u0026ct-\u003elock);\n 30:\t\treturn 0;\n 31:\t}\n 32:\tEXPORT_SYMBOL_GPL(nf_ct_seqadj_init);\n 33:\t\n 34:\tint nf_ct_seqadj_set(struct nf_conn ct, enum ip_conntrack_info ctinfo,\n 35:\t\t\t __be32 seq, s32 off)\n 36:\t{\n 37:\t\tstruct nf_conn_seqadj seqadj = nfct_seqadj(ct);\n 38:\t\tenum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);\n 39:\t\tstruct nf_ct_seqadj this_way;\n 40:\t\n 41:\t\tif (off == 0)\n 42:\t\t\treturn 0;\n 43:\t\n 44:\t\tif (unlikely(!seqadj))\n 45:\t\t\treturn 0;\n 46:\t\n 47:\t\tset_bit(IPS_SEQ_ADJUST_BIT, \u0026ct-\u003estatus);\n 48:\t\n 49:\t\tspin_lock_bh(\u0026ct-\u003elock);\n 50:\t\tthis_way = \u0026seqadj-\u003eseq[dir];\n" }
9/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 14861 output: 143 thoughts: 1232 Thoughts: WorthFuzzing Evaluation: Netfilter Patch Series Okay, let's break this down. First, I noticed the change in `nf_ct_seqadj_set` and `nf_ct_seqadj_init`, specifically the modification to the locking scheme and how it aligns with memory allocation practices across the Netfilter subsystem. The switch to `GFP_KERNEL_ACCOUNT` and `alloc_percpu_gfp(..., GFP_KERNEL_ACCOUNT)` is a signal. Now, let's confirm the broader scope of these modifications. I scanned through the list of touched files: * `nf_conncount.c` * `nf_conntrack_ovs.c` * `nf_conntrack_seqadj.c` * `nf_conntrack_standalone.c` * `nf_hooks_lwtunnel.c` * `nf_log.c` * `nf_nat_core.c` * `nf_synproxy_core.c` * `nfnetlink_acct.c` * `nfnetlink_cthelper.c` * `nfnetlink_cttimeout.c` * `nfnetlink_osf.c` * `nft_ct.c` * `nft_set_pipapo.c` * `xt_CT.c` * `xt_IDLETIMER.c` * `xt_LED.c` * `xt_RATEEST.c` * `xt_TEE.c` * `xt_hashlimit.c` * `xt_limit.c` * `xt_quota.c` * `xt_recent.c` * `xt_statistic.c` * `xt_string.c` All of these reside within `net/netfilter/`, which is prime real estate for fuzzing, given that it's the core of networking, encompassing conntrack, iptables, nftables, and netlink. This area is completely reachable through standard QEMU/syzkaller fuzzing techniques: netlink interaction, iptables/nftables configuration syscalls, socket traffic, the works. Now, based on the criteria for "WorthFuzzing," the answer is a resounding yes. The patch touches reachable, executable code: we see logic modifications (locking changes) and restructuring of data structures, namely related to memory accounting. Furthermore, the very nature of Netfilter, touching core networking, makes this highly relevant. Changes in `nf_ct_seqadj_init` with lock modifications, and the switch to `GFP_KERNEL_ACCOUNT` across multiple modules are huge red flags of potential fuzzing targets. My next step is to nail down the specific `FocusSymbols` and `EnableConfigs` by digging into the Kconfig files in `net/netfilter/Kconfig`, `net/ipv4/netfilter/Kconfig`, and other relevant Kconfig files. The goal is to maximize the effectiveness of fuzzing by ensuring the relevant configurations are enabled and that the critical symbols are properly targeted.
10/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "(nf_conncount\|nf_conntrack_ovs\|nf_conntrack_seqadj\|nf_hooks_lwtunnel\|nf_synproxy_core\|nfnetlink_acct\|nfnetlink_cthelper\|nfnetlink_cttimeout\|nfnetlink_osf\|nft_set_pipapo\|xt_IDLETIMER\|xt_LED\|xt_RATEEST\|xt_TEE\|xt_hashlimit\|xt_limit\|xt_quota\|xt_recent\|xt_statistic\|xt_string)", "PathPrefix": "net/netfilter/" } Results: { "Output": "\nFull output is too long, showing 500 out of 1121 lines.\nUse more precise expression if possible.\n\nnet/netfilter/Kconfig=1442=config NETFILTER_XT_MATCH_NFACCT\n--\nnet/netfilter/Kconfig-1447-\t This option allows you to use the extended accounting through\nnet/netfilter/Kconfig:1448:\t nfnetlink_acct.\nnet/netfilter/Kconfig-1449-\n--\nnet/netfilter/Makefile=5=nf_conntrack-y\t:= nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_expect.o nf_conntrack_helper.o \\\n--\nnet/netfilter/Makefile-7-\t\t nf_conntrack_proto_icmp.o \\\nnet/netfilter/Makefile:8:\t\t nf_conntrack_extend.o nf_conntrack_acct.o nf_conntrack_seqadj.o\nnet/netfilter/Makefile-9-\n--\nnet/netfilter/Makefile=14=nf_conntrack-$(CONFIG_NF_CONNTRACK_LABELS) += nf_conntrack_labels.o\nnet/netfilter/Makefile:15:nf_conntrack-$(CONFIG_NF_CONNTRACK_OVS) += nf_conntrack_ovs.o\nnet/netfilter/Makefile-16-nf_conntrack-$(CONFIG_NF_CT_PROTO_SCTP) += nf_conntrack_proto_sctp.o\n--\nnet/netfilter/Makefile=25=obj-$(CONFIG_NETFILTER_BPF_LINK) += nf_bpf_link.o\nnet/netfilter/Makefile-26-\nnet/netfilter/Makefile:27:obj-$(CONFIG_NETFILTER_NETLINK_ACCT) += nfnetlink_acct.o\nnet/netfilter/Makefile-28-obj-$(CONFIG_NETFILTER_NETLINK_QUEUE) += nfnetlink_queue.o\nnet/netfilter/Makefile=29=obj-$(CONFIG_NETFILTER_NETLINK_LOG) += nfnetlink_log.o\nnet/netfilter/Makefile:30:obj-$(CONFIG_NETFILTER_NETLINK_OSF) += nfnetlink_osf.o\nnet/netfilter/Makefile-31-obj-$(CONFIG_NETFILTER_NETLINK_HOOK) += nfnetlink_hook.o\n--\nnet/netfilter/Makefile=37=obj-$(CONFIG_NF_CT_NETLINK) += nf_conntrack_netlink.o\nnet/netfilter/Makefile:38:obj-$(CONFIG_NF_CT_NETLINK_TIMEOUT) += nfnetlink_cttimeout.o\nnet/netfilter/Makefile:39:obj-$(CONFIG_NF_CT_NETLINK_HELPER) += nfnetlink_cthelper.o\nnet/netfilter/Makefile-40-\n--\nnet/netfilter/Makefile=76=obj-$(CONFIG_NF_NAT_TFTP) += nf_nat_tftp.o\n--\nnet/netfilter/Makefile-78-# SYNPROXY\nnet/netfilter/Makefile:79:obj-$(CONFIG_NETFILTER_SYNPROXY) += nf_synproxy_core.o\nnet/netfilter/Makefile-80-\nnet/netfilter/Makefile:81:obj-$(CONFIG_NETFILTER_CONNCOUNT) += nf_conncount.o\nnet/netfilter/Makefile-82-\n--\nnet/netfilter/Makefile=87=nf_tables-objs := nf_tables_core.o nf_tables_api.o nft_chain_filter.o \\\n--\nnet/netfilter/Makefile-93-\t\t nft_set_hash.o nft_set_bitmap.o nft_set_rbtree.o \\\nnet/netfilter/Makefile:94:\t\t nft_set_pipapo.o\nnet/netfilter/Makefile-95-\n--\nnet/netfilter/Makefile=97=ifndef CONFIG_UML\nnet/netfilter/Makefile:98:nf_tables-objs += nft_set_pipapo_avx2.o\nnet/netfilter/Makefile-99-endif\n--\nnet/netfilter/Makefile=172=obj-$(CONFIG_NETFILTER_XT_TARGET_HMARK) += xt_HMARK.o\nnet/netfilter/Makefile:173:obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o\nnet/netfilter/Makefile-174-obj-$(CONFIG_NETFILTER_XT_TARGET_LOG) += xt_LOG.o\n--\nnet/netfilter/Makefile=177=obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o\nnet/netfilter/Makefile:178:obj-$(CONFIG_NETFILTER_XT_TARGET_RATEEST) += xt_RATEEST.o\nnet/netfilter/Makefile-179-obj-$(CONFIG_NETFILTER_XT_TARGET_REDIRECT) += xt_REDIRECT.o\n--\nnet/netfilter/Makefile=184=obj-$(CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP) += xt_TCPOPTSTRIP.o\nnet/netfilter/Makefile:185:obj-$(CONFIG_NETFILTER_XT_TARGET_TEE) += xt_TEE.o\nnet/netfilter/Makefile-186-obj-$(CONFIG_NETFILTER_XT_TARGET_TRACE) += xt_TRACE.o\nnet/netfilter/Makefile:187:obj-$(CONFIG_NETFILTER_XT_TARGET_IDLETIMER) += xt_IDLETIMER.o\nnet/netfilter/Makefile-188-\n--\nnet/netfilter/Makefile=203=obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o\nnet/netfilter/Makefile:204:obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o\nnet/netfilter/Makefile-205-obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o\n--\nnet/netfilter/Makefile=211=obj-$(CONFIG_NETFILTER_XT_MATCH_LENGTH) += xt_length.o\nnet/netfilter/Makefile:212:obj-$(CONFIG_NETFILTER_XT_MATCH_LIMIT) += xt_limit.o\nnet/netfilter/Makefile-213-obj-$(CONFIG_NETFILTER_XT_MATCH_MAC) += xt_mac.o\n--\nnet/netfilter/Makefile=221=obj-$(CONFIG_NETFILTER_XT_MATCH_POLICY) += xt_policy.o\nnet/netfilter/Makefile:222:obj-$(CONFIG_NETFILTER_XT_MATCH_QUOTA) += xt_quota.o\nnet/netfilter/Makefile-223-obj-$(CONFIG_NETFILTER_XT_MATCH_RATEEST) += xt_rateest.o\nnet/netfilter/Makefile=224=obj-$(CONFIG_NETFILTER_XT_MATCH_REALM) += xt_realm.o\nnet/netfilter/Makefile:225:obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT) += xt_recent.o\nnet/netfilter/Makefile-226-obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o\n--\nnet/netfilter/Makefile=228=obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o\nnet/netfilter/Makefile:229:obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o\nnet/netfilter/Makefile:230:obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o\nnet/netfilter/Makefile-231-obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o\n--\nnet/netfilter/Makefile=239=obj-$(CONFIG_IP_VS) += ipvs/\n--\nnet/netfilter/Makefile-241-# lwtunnel\nnet/netfilter/Makefile:242:obj-$(CONFIG_LWTUNNEL) += nf_hooks_lwtunnel.o\nnet/netfilter/Makefile-243-\n--\nnet/netfilter/ipvs/ip_vs_nfct.c-47-#include \u003cnet/netfilter/nf_conntrack_expect.h\u003e\nnet/netfilter/ipvs/ip_vs_nfct.c:48:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/ipvs/ip_vs_nfct.c-49-#include \u003cnet/netfilter/nf_conntrack_helper.h\u003e\n--\nnet/netfilter/nf_conncount.c-41-/* we will save the tuples of all connections we care about /\nnet/netfilter/nf_conncount.c:42:struct nf_conncount_tuple {\nnet/netfilter/nf_conncount.c-43-\tstruct list_head\t\tnode;\n--\nnet/netfilter/nf_conncount.c-49-\nnet/netfilter/nf_conncount.c:50:struct nf_conncount_rb {\nnet/netfilter/nf_conncount.c-51-\tstruct rb_node node;\nnet/netfilter/nf_conncount.c:52:\tstruct nf_conncount_list list;\nnet/netfilter/nf_conncount.c-53-\tu32 key[MAX_KEYLEN];\n--\nnet/netfilter/nf_conncount.c-56-\nnet/netfilter/nf_conncount.c:57:struct nf_conncount_root {\nnet/netfilter/nf_conncount.c-58-\tstruct rb_root root;\n--\nnet/netfilter/nf_conncount.c-62-\nnet/netfilter/nf_conncount.c:63:struct nf_conncount_data {\nnet/netfilter/nf_conncount.c-64-\tunsigned int keylen;\nnet/netfilter/nf_conncount.c-65-\tu32 initval;\nnet/netfilter/nf_conncount.c:66:\tstruct nf_conncount_root root[CONNCOUNT_SLOTS];\nnet/netfilter/nf_conncount.c-67-\tstruct net net;\n--\nnet/netfilter/nf_conncount.c=85=static int key_diff(const u32 a, const u32 b, unsigned int klen)\n--\nnet/netfilter/nf_conncount.c-89-\nnet/netfilter/nf_conncount.c:90:static void conn_free(struct nf_conncount_list list,\nnet/netfilter/nf_conncount.c:91:\t\t struct nf_conncount_tuple conn)\nnet/netfilter/nf_conncount.c-92-{\n--\nnet/netfilter/nf_conncount.c=101=static const struct nf_conntrack_tuple_hash \nnet/netfilter/nf_conncount.c:102:find_or_evict(struct net net, struct nf_conncount_list list,\nnet/netfilter/nf_conncount.c:103:\t struct nf_conncount_tuple conn)\nnet/netfilter/nf_conncount.c-104-{\n--\nnet/netfilter/nf_conncount.c=130=static bool get_ct_or_tuple_from_skb(struct net net,\n--\nnet/netfilter/nf_conncount.c-168-\nnet/netfilter/nf_conncount.c:169:static int __nf_conncount_add(struct net net,\nnet/netfilter/nf_conncount.c-170-\t\t\t const struct sk_buff skb,\nnet/netfilter/nf_conncount.c-171-\t\t\t u16 l3num,\nnet/netfilter/nf_conncount.c:172:\t\t\t struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-173-{\n--\nnet/netfilter/nf_conncount.c-175-\tconst struct nf_conntrack_tuple_hash found;\nnet/netfilter/nf_conncount.c:176:\tstruct nf_conncount_tuple conn, conn_n;\nnet/netfilter/nf_conncount.c-177-\tstruct nf_conntrack_tuple tuple;\n--\nnet/netfilter/nf_conncount.c-278-\nnet/netfilter/nf_conncount.c:279:int nf_conncount_add_skb(struct net net,\nnet/netfilter/nf_conncount.c-280-\t\t\t const struct sk_buff skb,\nnet/netfilter/nf_conncount.c-281-\t\t\t u16 l3num,\nnet/netfilter/nf_conncount.c:282:\t\t\t struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-283-{\n--\nnet/netfilter/nf_conncount.c-287-\tspin_lock_bh(\u0026list-\u003elist_lock);\nnet/netfilter/nf_conncount.c:288:\tret = __nf_conncount_add(net, skb, l3num, list);\nnet/netfilter/nf_conncount.c-289-\tspin_unlock_bh(\u0026list-\u003elist_lock);\n--\nnet/netfilter/nf_conncount.c-292-}\nnet/netfilter/nf_conncount.c:293:EXPORT_SYMBOL_GPL(nf_conncount_add_skb);\nnet/netfilter/nf_conncount.c-294-\nnet/netfilter/nf_conncount.c:295:void nf_conncount_list_init(struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-296-{\n--\nnet/netfilter/nf_conncount.c-302-}\nnet/netfilter/nf_conncount.c:303:EXPORT_SYMBOL_GPL(nf_conncount_list_init);\nnet/netfilter/nf_conncount.c-304-\nnet/netfilter/nf_conncount.c-305-/ Return true if the list is empty. Must be called with BH disabled. /\nnet/netfilter/nf_conncount.c:306:static bool __nf_conncount_gc_list(struct net net,\nnet/netfilter/nf_conncount.c:307:\t\t\t\t struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-308-{\nnet/netfilter/nf_conncount.c-309-\tconst struct nf_conntrack_tuple_hash found;\nnet/netfilter/nf_conncount.c:310:\tstruct nf_conncount_tuple conn, conn_n;\nnet/netfilter/nf_conncount.c-311-\tstruct nf_conn found_ct;\n--\nnet/netfilter/nf_conncount.c-351-\nnet/netfilter/nf_conncount.c:352:bool nf_conncount_gc_list(struct net net,\nnet/netfilter/nf_conncount.c:353:\t\t\t struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-354-{\n--\nnet/netfilter/nf_conncount.c-360-\nnet/netfilter/nf_conncount.c:361:\tret = __nf_conncount_gc_list(net, list);\nnet/netfilter/nf_conncount.c-362-\tspin_unlock_bh(\u0026list-\u003elist_lock);\n--\nnet/netfilter/nf_conncount.c-365-}\nnet/netfilter/nf_conncount.c:366:EXPORT_SYMBOL_GPL(nf_conncount_gc_list);\nnet/netfilter/nf_conncount.c-367-\nnet/netfilter/nf_conncount.c=368=static void __tree_nodes_free(struct rcu_head h)\nnet/netfilter/nf_conncount.c-369-{\nnet/netfilter/nf_conncount.c:370:\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-371-\nnet/netfilter/nf_conncount.c:372:\trbconn = container_of(h, struct nf_conncount_rb, rcu_head);\nnet/netfilter/nf_conncount.c-373-\tkmem_cache_free(conncount_rb_cachep, rbconn);\n--\nnet/netfilter/nf_conncount.c-375-\nnet/netfilter/nf_conncount.c:376:static void tree_nodes_free(struct nf_conncount_root root,\nnet/netfilter/nf_conncount.c:377:\t\t\t struct nf_conncount_rb gc_nodes[],\nnet/netfilter/nf_conncount.c-378-\t\t\t unsigned int gc_count)\nnet/netfilter/nf_conncount.c-379-{\nnet/netfilter/nf_conncount.c:380:\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-381-\n--\nnet/netfilter/nf_conncount.c-396-\nnet/netfilter/nf_conncount.c:397:static void schedule_gc_worker(struct nf_conncount_data data, int tree)\nnet/netfilter/nf_conncount.c-398-{\n--\nnet/netfilter/nf_conncount.c=404=insert_tree(struct net net,\n--\nnet/netfilter/nf_conncount.c-406-\t u16 l3num,\nnet/netfilter/nf_conncount.c:407:\t struct nf_conncount_data data,\nnet/netfilter/nf_conncount.c-408-\t unsigned int hash,\n--\nnet/netfilter/nf_conncount.c-410-{\nnet/netfilter/nf_conncount.c:411:\tstruct nf_conncount_root root = \u0026data-\u003eroot[hash];\nnet/netfilter/nf_conncount.c:412:\tstruct nf_conncount_rb gc_nodes[CONNCOUNT_GC_MAX_NODES];\nnet/netfilter/nf_conncount.c-413-\tconst struct nf_conntrack_zone zone = \u0026nf_ct_zone_dflt;\n--\nnet/netfilter/nf_conncount.c-417-\tstruct nf_conntrack_tuple tuple;\nnet/netfilter/nf_conncount.c:418:\tstruct nf_conncount_tuple conn;\nnet/netfilter/nf_conncount.c:419:\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-420-\tstruct nf_conn ct = NULL;\n--\nnet/netfilter/nf_conncount.c-427-\t\tint diff;\nnet/netfilter/nf_conncount.c:428:\t\trbconn = rb_entry(rbnode, struct nf_conncount_rb, node);\nnet/netfilter/nf_conncount.c-429-\n--\nnet/netfilter/nf_conncount.c-438-\nnet/netfilter/nf_conncount.c:439:\t\t\tret = nf_conncount_add_skb(net, skb, l3num, \u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-440-\t\t\tif (ret \u0026\u0026 ret != -EEXIST)\n--\nnet/netfilter/nf_conncount.c-450-\nnet/netfilter/nf_conncount.c:451:\t\tif (do_gc \u0026\u0026 nf_conncount_gc_list(net, \u0026rbconn-\u003elist))\nnet/netfilter/nf_conncount.c-452-\t\t\tgc_nodes[gc_count++] = rbconn;\n--\nnet/netfilter/nf_conncount.c-480-\nnet/netfilter/nf_conncount.c:481:\t\tnf_conncount_list_init(\u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-482-\t\tlist_add(\u0026conn-\u003enode, \u0026rbconn-\u003elist.head);\n--\nnet/netfilter/nf_conncount.c-497-\nnet/netfilter/nf_conncount.c:498:static struct nf_conncount_rb \nnet/netfilter/nf_conncount.c:499:find_tree_node(struct nf_conncount_root root, struct nf_conncount_data data,\nnet/netfilter/nf_conncount.c-500-\t const u32 key)\n--\nnet/netfilter/nf_conncount.c-507-\twhile (parent) {\nnet/netfilter/nf_conncount.c:508:\t\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-509-\t\tint diff;\nnet/netfilter/nf_conncount.c-510-\nnet/netfilter/nf_conncount.c:511:\t\trbconn = rb_entry(parent, struct nf_conncount_rb, node);\nnet/netfilter/nf_conncount.c-512-\n--\nnet/netfilter/nf_conncount.c=534=count_tree(struct net net,\n--\nnet/netfilter/nf_conncount.c-536-\t u16 l3num,\nnet/netfilter/nf_conncount.c:537:\t struct nf_conncount_data data,\nnet/netfilter/nf_conncount.c-538-\t const u32 key)\nnet/netfilter/nf_conncount.c-539-{\nnet/netfilter/nf_conncount.c:540:\tstruct nf_conncount_root root;\nnet/netfilter/nf_conncount.c:541:\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-542-\tunsigned int hash;\n--\nnet/netfilter/nf_conncount.c-569-\tif (!skb) {\nnet/netfilter/nf_conncount.c:570:\t\tnf_conncount_gc_list(net, \u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-571-\t\treturn rbconn-\u003elist.count;\n--\nnet/netfilter/nf_conncount.c-583-\t/* same source network -\u003e be counted! /\nnet/netfilter/nf_conncount.c:584:\tret = __nf_conncount_add(net, skb, l3num, \u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-585-\tspin_unlock_bh(\u0026rbconn-\u003elist.list_lock);\n--\nnet/netfilter/nf_conncount.c-590-\tif (ret == -EEXIST)\nnet/netfilter/nf_conncount.c:591:\t\tnf_conncount_gc_list(net, \u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-592-\n--\nnet/netfilter/nf_conncount.c=596=static void tree_gc_worker(struct work_struct work)\nnet/netfilter/nf_conncount.c-597-{\nnet/netfilter/nf_conncount.c:598:\tstruct nf_conncount_data data = container_of(work, struct nf_conncount_data, gc_work);\nnet/netfilter/nf_conncount.c:599:\tstruct nf_conncount_rb gc_nodes[CONNCOUNT_GC_MAX_NODES], rbconn;\nnet/netfilter/nf_conncount.c-600-\tunsigned int tree, next_tree, gc_count = 0;\nnet/netfilter/nf_conncount.c:601:\tstruct nf_conncount_root root;\nnet/netfilter/nf_conncount.c-602-\tstruct rb_node node;\n--\nnet/netfilter/nf_conncount.c-616-\nnet/netfilter/nf_conncount.c:617:\t\trbconn = rb_entry(node, struct nf_conncount_rb, node);\nnet/netfilter/nf_conncount.c-618-\t\tnode = rb_next(node);\nnet/netfilter/nf_conncount.c-619-\nnet/netfilter/nf_conncount.c:620:\t\tif (nf_conncount_gc_list(data-\u003enet, \u0026rbconn-\u003elist))\nnet/netfilter/nf_conncount.c-621-\t\t\tgc_nodes[gc_count++] = rbconn;\n--\nnet/netfilter/nf_conncount.c-632-\nnet/netfilter/nf_conncount.c:633:\t\trbconn = rb_entry(node, struct nf_conncount_rb, node);\nnet/netfilter/nf_conncount.c-634-\t\tmemcpy(key, rbconn-\u003ekey, sizeof(key));\n--\nnet/netfilter/nf_conncount.c-666- /\nnet/netfilter/nf_conncount.c:667:unsigned int nf_conncount_count_skb(struct net net,\nnet/netfilter/nf_conncount.c-668-\t\t\t\t const struct sk_buff skb,\nnet/netfilter/nf_conncount.c-669-\t\t\t\t u16 l3num,\nnet/netfilter/nf_conncount.c:670:\t\t\t\t struct nf_conncount_data data,\nnet/netfilter/nf_conncount.c-671-\t\t\t\t const u32 key)\n--\nnet/netfilter/nf_conncount.c-675-}\nnet/netfilter/nf_conncount.c:676:EXPORT_SYMBOL_GPL(nf_conncount_count_skb);\nnet/netfilter/nf_conncount.c-677-\nnet/netfilter/nf_conncount.c:678:static void nf_conncount_root_init(struct nf_conncount_root r)\nnet/netfilter/nf_conncount.c-679-{\n--\nnet/netfilter/nf_conncount.c-684-\nnet/netfilter/nf_conncount.c:685:struct nf_conncount_data nf_conncount_init(struct net net, unsigned int keylen)\nnet/netfilter/nf_conncount.c-686-{\nnet/netfilter/nf_conncount.c:687:\tstruct nf_conncount_data data;\nnet/netfilter/nf_conncount.c-688-\tint i;\n--\nnet/netfilter/nf_conncount.c-699-\tfor (i = 0; i \u003c ARRAY_SIZE(data-\u003eroot); ++i)\nnet/netfilter/nf_conncount.c:700:\t\tnf_conncount_root_init(\u0026data-\u003eroot[i]);\nnet/netfilter/nf_conncount.c-701-\n--\nnet/netfilter/nf_conncount.c-708-}\nnet/netfilter/nf_conncount.c:709:EXPORT_SYMBOL_GPL(nf_conncount_init);\nnet/netfilter/nf_conncount.c-710-\nnet/netfilter/nf_conncount.c:711:void nf_conncount_cache_free(struct nf_conncount_list list)\nnet/netfilter/nf_conncount.c-712-{\nnet/netfilter/nf_conncount.c:713:\tstruct nf_conncount_tuple conn, conn_n;\nnet/netfilter/nf_conncount.c-714-\n--\nnet/netfilter/nf_conncount.c-717-}\nnet/netfilter/nf_conncount.c:718:EXPORT_SYMBOL_GPL(nf_conncount_cache_free);\nnet/netfilter/nf_conncount.c-719-\nnet/netfilter/nf_conncount.c:720:static void destroy_tree(struct nf_conncount_root r)\nnet/netfilter/nf_conncount.c-721-{\nnet/netfilter/nf_conncount.c:722:\tstruct nf_conncount_rb rbconn;\nnet/netfilter/nf_conncount.c-723-\tstruct rb_node node;\n--\nnet/netfilter/nf_conncount.c-725-\twhile ((node = rb_first(\u0026r-\u003eroot)) != NULL) {\nnet/netfilter/nf_conncount.c:726:\t\trbconn = rb_entry(node, struct nf_conncount_rb, node);\nnet/netfilter/nf_conncount.c-727-\n--\nnet/netfilter/nf_conncount.c-729-\nnet/netfilter/nf_conncount.c:730:\t\tnf_conncount_cache_free(\u0026rbconn-\u003elist);\nnet/netfilter/nf_conncount.c-731-\n--\nnet/netfilter/nf_conncount.c-735-\nnet/netfilter/nf_conncount.c:736:void nf_conncount_destroy(struct net net, struct nf_conncount_data data)\nnet/netfilter/nf_conncount.c-737-{\n--\nnet/netfilter/nf_conncount.c-746-}\nnet/netfilter/nf_conncount.c:747:EXPORT_SYMBOL_GPL(nf_conncount_destroy);\nnet/netfilter/nf_conncount.c-748-\nnet/netfilter/nf_conncount.c:749:static int __init nf_conncount_modinit(void)\nnet/netfilter/nf_conncount.c-750-{\nnet/netfilter/nf_conncount.c:751:\tconncount_conn_cachep = KMEM_CACHE(nf_conncount_tuple, 0);\nnet/netfilter/nf_conncount.c-752-\tif (!conncount_conn_cachep)\n--\nnet/netfilter/nf_conncount.c-754-\nnet/netfilter/nf_conncount.c:755:\tconncount_rb_cachep = KMEM_CACHE(nf_conncount_rb, 0);\nnet/netfilter/nf_conncount.c-756-\tif (!conncount_rb_cachep) {\n--\nnet/netfilter/nf_conncount.c-763-\nnet/netfilter/nf_conncount.c:764:static void __exit nf_conncount_modexit(void)\nnet/netfilter/nf_conncount.c-765-{\n--\nnet/netfilter/nf_conncount.c-770-\nnet/netfilter/nf_conncount.c:771:module_init(nf_conncount_modinit);\nnet/netfilter/nf_conncount.c:772:module_exit(nf_conncount_modexit);\nnet/netfilter/nf_conncount.c-773-MODULE_AUTHOR(\"Jan Engelhardt \u003cjengelh@medozas.de\u003e\");\n--\nnet/netfilter/nf_conntrack_extend.c-17-#include \u003cnet/netfilter/nf_conntrack_acct.h\u003e\nnet/netfilter/nf_conntrack_extend.c:18:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_extend.c-19-#include \u003cnet/netfilter/nf_conntrack_ecache.h\u003e\n--\nnet/netfilter/nf_conntrack_helper.c-28-#include \u003cnet/netfilter/nf_conntrack_l4proto.h\u003e\nnet/netfilter/nf_conntrack_helper.c:29:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_helper.c-30-#include \u003cnet/netfilter/nf_log.h\u003e\n--\nnet/netfilter/nf_conntrack_netlink.c-39-#include \u003cnet/netfilter/nf_conntrack_helper.h\u003e\nnet/netfilter/nf_conntrack_netlink.c:40:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_netlink.c-41-#include \u003cnet/netfilter/nf_conntrack_l4proto.h\u003e\n--\nnet/netfilter/nf_conntrack_ovs.c-4-#include \u003cnet/netfilter/nf_conntrack_helper.h\u003e\nnet/netfilter/nf_conntrack_ovs.c:5:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_ovs.c-6-#include \u003cnet/netfilter/ipv6/nf_defrag_ipv6.h\u003e\n--\nnet/netfilter/nf_conntrack_proto.c-32-#include \u003cnet/netfilter/nf_conntrack_zones.h\u003e\nnet/netfilter/nf_conntrack_proto.c:33:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_proto.c-34-#include \u003cnet/netfilter/ipv4/nf_conntrack_ipv4.h\u003e\n--\nnet/netfilter/nf_conntrack_proto_generic.c=13=static const unsigned int nf_ct_generic_timeout = 600HZ;\n--\nnet/netfilter/nf_conntrack_proto_generic.c-17-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_generic.c:18:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_generic.c-19-\n--\nnet/netfilter/nf_conntrack_proto_gre.c=266=int nf_conntrack_gre_packet(struct nf_conn ct,\n--\nnet/netfilter/nf_conntrack_proto_gre.c-309-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_gre.c:310:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_gre.c-311-\n--\nnet/netfilter/nf_conntrack_proto_icmp.c=305=static unsigned int icmp_nlattr_tuple_size(void)\n--\nnet/netfilter/nf_conntrack_proto_icmp.c-318-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_icmp.c:319:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_icmp.c-320-\n--\nnet/netfilter/nf_conntrack_proto_icmpv6.c=283=static unsigned int icmpv6_nlattr_tuple_size(void)\n--\nnet/netfilter/nf_conntrack_proto_icmpv6.c-296-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_icmpv6.c:297:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_icmpv6.c-298-\n--\nnet/netfilter/nf_conntrack_proto_sctp.c=604=static int nlattr_to_sctp(struct nlattr cda[], struct nf_conn ct)\n--\nnet/netfilter/nf_conntrack_proto_sctp.c-638-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_sctp.c:639:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_sctp.c-640-\n--\nnet/netfilter/nf_conntrack_proto_tcp.c-26-#include \u003cnet/netfilter/nf_conntrack_ecache.h\u003e\nnet/netfilter/nf_conntrack_proto_tcp.c:27:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_proto_tcp.c-28-#include \u003cnet/netfilter/nf_conntrack_synproxy.h\u003e\n--\nnet/netfilter/nf_conntrack_proto_tcp.c=1496=static unsigned int tcp_nlattr_tuple_size(void)\n--\nnet/netfilter/nf_conntrack_proto_tcp.c-1509-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_tcp.c:1510:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_tcp.c-1511-\n--\nnet/netfilter/nf_conntrack_proto_udp.c=95=int nf_conntrack_udp_packet(struct nf_conn ct,\n--\nnet/netfilter/nf_conntrack_proto_udp.c-145-#include \u003clinux/netfilter/nfnetlink.h\u003e\nnet/netfilter/nf_conntrack_proto_udp.c:146:#include \u003clinux/netfilter/nfnetlink_cttimeout.h\u003e\nnet/netfilter/nf_conntrack_proto_udp.c-147-\n--\nnet/netfilter/nf_conntrack_seqadj.c-7-#include \u003cnet/netfilter/nf_conntrack_extend.h\u003e\nnet/netfilter/nf_conntrack_seqadj.c:8:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_conntrack_seqadj.c-9-\n--\nnet/netfilter/nf_hooks_lwtunnel.c-4-#include \u003cnet/lwtunnel.h\u003e\nnet/netfilter/nf_hooks_lwtunnel.c:5:#include \u003cnet/netfilter/nf_hooks_lwtunnel.h\u003e\nnet/netfilter/nf_hooks_lwtunnel.c-6-#include \u003clinux/netfilter.h\u003e\n--\nnet/netfilter/nf_hooks_lwtunnel.c-9-\nnet/netfilter/nf_hooks_lwtunnel.c:10:static inline int nf_hooks_lwtunnel_get(void)\nnet/netfilter/nf_hooks_lwtunnel.c-11-{\nnet/netfilter/nf_hooks_lwtunnel.c:12:\tif (static_branch_unlikely(\u0026nf_hooks_lwtunnel_enabled))\nnet/netfilter/nf_hooks_lwtunnel.c-13-\t\treturn 1;\n--\nnet/netfilter/nf_hooks_lwtunnel.c-17-\nnet/netfilter/nf_hooks_lwtunnel.c:18:static inline int nf_hooks_lwtunnel_set(int enable)\nnet/netfilter/nf_hooks_lwtunnel.c-19-{\nnet/netfilter/nf_hooks_lwtunnel.c:20:\tif (static_branch_unlikely(\u0026nf_hooks_lwtunnel_enabled)) {\nnet/netfilter/nf_hooks_lwtunnel.c-21-\t\tif (!enable)\n--\nnet/netfilter/nf_hooks_lwtunnel.c-23-\t} else if (enable) {\nnet/netfilter/nf_hooks_lwtunnel.c:24:\t\tstatic_branch_enable(\u0026nf_hooks_lwtunnel_enabled);\nnet/netfilter/nf_hooks_lwtunnel.c-25-\t}\n--\nnet/netfilter/nf_hooks_lwtunnel.c-30-#ifdef CONFIG_SYSCTL\nnet/netfilter/nf_hooks_lwtunnel.c:31:int nf_hooks_lwtunnel_sysctl_handler(const struct ctl_table table, int write,\nnet/netfilter/nf_hooks_lwtunnel.c-32-\t\t\t\t void buffer, size_t lenp, loff_t ppos)\nnet/netfilter/nf_hooks_lwtunnel.c-33-{\nnet/netfilter/nf_hooks_lwtunnel.c:34:\tint proc_nf_hooks_lwtunnel_enabled = 0;\nnet/netfilter/nf_hooks_lwtunnel.c-35-\tstruct ctl_table tmp = {\nnet/netfilter/nf_hooks_lwtunnel.c-36-\t\t.procname = table-\u003eprocname,\nnet/netfilter/nf_hooks_lwtunnel.c:37:\t\t.data = \u0026proc_nf_hooks_lwtunnel_enabled,\nnet/netfilter/nf_hooks_lwtunnel.c-38-\t\t.maxlen = sizeof(int),\n--\nnet/netfilter/nf_hooks_lwtunnel.c-45-\tif (!write)\nnet/netfilter/nf_hooks_lwtunnel.c:46:\t\tproc_nf_hooks_lwtunnel_enabled = nf_hooks_lwtunnel_get();\nnet/netfilter/nf_hooks_lwtunnel.c-47-\n--\nnet/netfilter/nf_hooks_lwtunnel.c-50-\tif (write \u0026\u0026 ret == 0)\nnet/netfilter/nf_hooks_lwtunnel.c:51:\t\tret = nf_hooks_lwtunnel_set(proc_nf_hooks_lwtunnel_enabled);\nnet/netfilter/nf_hooks_lwtunnel.c-52-\n--\nnet/netfilter/nf_hooks_lwtunnel.c-54-}\nnet/netfilter/nf_hooks_lwtunnel.c:55:EXPORT_SYMBOL_GPL(nf_hooks_lwtunnel_sysctl_handler);\nnet/netfilter/nf_hooks_lwtunnel.c-56-\nnet/netfilter/nf_hooks_lwtunnel.c=57=static const struct ctl_table nf_lwtunnel_sysctl_table[] = {\nnet/netfilter/nf_hooks_lwtunnel.c-58-\t{\nnet/netfilter/nf_hooks_lwtunnel.c:59:\t\t.procname\t= \"nf_hooks_lwtunnel\",\nnet/netfilter/nf_hooks_lwtunnel.c-60-\t\t.data\t\t= NULL,\n--\nnet/netfilter/nf_hooks_lwtunnel.c-62-\t\t.mode\t\t= 0644,\nnet/netfilter/nf_hooks_lwtunnel.c:63:\t\t.proc_handler\t= nf_hooks_lwtunnel_sysctl_handler,\nnet/netfilter/nf_hooks_lwtunnel.c-64-\t},\n--\nnet/netfilter/nf_internals.h=30=int __init netfilter_log_init(void);\n--\nnet/netfilter/nf_internals.h-32-#ifdef CONFIG_LWTUNNEL\nnet/netfilter/nf_internals.h:33:/ nf_hooks_lwtunnel.c /\nnet/netfilter/nf_internals.h-34-int __init netfilter_lwtunnel_init(void);\n--\nnet/netfilter/nf_nat_core.c-21-#include \u003cnet/netfilter/nf_conntrack_helper.h\u003e\nnet/netfilter/nf_nat_core.c:22:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_nat_core.c-23-#include \u003cnet/netfilter/nf_conntrack_zones.h\u003e\n--\nnet/netfilter/nf_nat_helper.c-19-#include \u003cnet/netfilter/nf_conntrack_expect.h\u003e\nnet/netfilter/nf_nat_helper.c:20:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_nat_helper.c-21-#include \u003cnet/netfilter/nf_nat.h\u003e\n--\nnet/netfilter/nf_nat_sip.c-20-#include \u003cnet/netfilter/nf_conntrack_expect.h\u003e\nnet/netfilter/nf_nat_sip.c:21:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_nat_sip.c-22-#include \u003clinux/netfilter/nf_conntrack_sip.h\u003e\n--\nnet/netfilter/nf_synproxy_core.c-19-#include \u003cnet/netfilter/nf_conntrack_extend.h\u003e\nnet/netfilter/nf_synproxy_core.c:20:#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\nnet/netfilter/nf_synproxy_core.c-21-#include \u003cnet/netfilter/nf_conntrack_synproxy.h\u003e\n--\nnet/netfilter/nf_tables_api.c=4651=static const struct nft_set_type nft_set_types[] = {\n--\nnet/netfilter/nf_tables_api.c-4657-#if defined(CONFIG_X86_64) \u0026\u0026 !defined(CONFIG_UML)\nnet/netfilter/nf_tables_api.c:4658:\t\u0026nft_set_pipapo_avx2_type,\nnet/netfilter/nf_tables_api.c-4659-#endif\n\n" }
11/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 28402 output: 196 thoughts: 26 Thoughts: Here's my summary, as if I were thinking these thoughts: Kconfig Review - Due Diligence Time Okay, before we move forward, I really need to double-check those Kconfig definitions. We're dealing with a critical set of configurations here, and while I think I've got them right, assumptions are the enemy of a solid build. Let's make absolutely sure those names are precisely what they should be, and confirm all the dependencies are correct. No point in wasting time debugging later due to a silly typo or misunderstanding in the config relationships. Let's pull up the Kconfig files and give them a thorough going-over. That's the only way to be completely confident. This is about being rigorous and ensuring everything lines up perfectly.
12/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "config (NF_CONNTRACK\|NF_CONNTRACK_OVS\|NETFILTER_NETLINK_ACCT\|NETFILTER_NETLINK_OSF\|NF_CT_NETLINK_TIMEOUT\|NF_CT_NETLINK_HELPER\|NETFILTER_SYNPROXY\|NETFILTER_CONNCOUNT\|NETFILTER_XT_TARGET_LED\|NETFILTER_XT_TARGET_RATEEST\|NETFILTER_XT_TARGET_TEE\|NETFILTER_XT_TARGET_IDLETIMER\|NETFILTER_XT_MATCH_HASHLIMIT\|NETFILTER_XT_MATCH_LIMIT\|NETFILTER_XT_MATCH_QUOTA\|NETFILTER_XT_MATCH_RECENT\|NETFILTER_XT_MATCH_STATISTIC\|NETFILTER_XT_MATCH_STRING\|NF_TABLES\|NF_NAT)", "PathPrefix": "net/netfilter/Kconfig" } Results: { "Output": "net/netfilter/Kconfig=36=config NETFILTER_NETLINK_HOOK\n--\nnet/netfilter/Kconfig-45-\nnet/netfilter/Kconfig:46:config NETFILTER_NETLINK_ACCT\nnet/netfilter/Kconfig-47-\ttristate \"Netfilter NFACCT over NFNETLINK interface\"\n--\nnet/netfilter/Kconfig=62=config NETFILTER_NETLINK_LOG\n--\nnet/netfilter/Kconfig-73-\nnet/netfilter/Kconfig:74:config NETFILTER_NETLINK_OSF\nnet/netfilter/Kconfig-75-\ttristate \"Netfilter OSF over NFNETLINK interface\"\n--\nnet/netfilter/Kconfig-81-\nnet/netfilter/Kconfig:82:config NF_CONNTRACK\nnet/netfilter/Kconfig-83-\ttristate \"Netfilter connection tracking support\"\n--\nnet/netfilter/Kconfig=110=if NF_CONNTRACK\nnet/netfilter/Kconfig:111:config NETFILTER_CONNCOUNT\nnet/netfilter/Kconfig-112-\ttristate\nnet/netfilter/Kconfig-113-\nnet/netfilter/Kconfig:114:config NF_CONNTRACK_MARK\nnet/netfilter/Kconfig-115-\tbool 'Connection mark tracking support'\n--\nnet/netfilter/Kconfig-122-\nnet/netfilter/Kconfig:123:config NF_CONNTRACK_SECMARK\nnet/netfilter/Kconfig-124-\tbool 'Connection tracking security mark support'\n--\nnet/netfilter/Kconfig-135-\nnet/netfilter/Kconfig:136:config NF_CONNTRACK_ZONES\nnet/netfilter/Kconfig-137-\tbool 'Connection tracking zones'\n--\nnet/netfilter/Kconfig-147-\nnet/netfilter/Kconfig:148:config NF_CONNTRACK_PROCFS\nnet/netfilter/Kconfig-149-\tbool \"Supply CT list in procfs (OBSOLETE)\"\n--\nnet/netfilter/Kconfig-156-\nnet/netfilter/Kconfig:157:config NF_CONNTRACK_EVENTS\nnet/netfilter/Kconfig-158-\tbool \"Connection tracking events\"\n--\nnet/netfilter/Kconfig-166-\nnet/netfilter/Kconfig:167:config NF_CONNTRACK_TIMEOUT\nnet/netfilter/Kconfig-168-\tbool 'Connection tracking timeout'\n--\nnet/netfilter/Kconfig-176-\nnet/netfilter/Kconfig:177:config NF_CONNTRACK_TIMESTAMP\nnet/netfilter/Kconfig-178-\tbool 'Connection tracking timestamping'\n--\nnet/netfilter/Kconfig-187-\nnet/netfilter/Kconfig:188:config NF_CONNTRACK_LABELS\nnet/netfilter/Kconfig-189-\tbool \"Connection tracking labels\"\n--\nnet/netfilter/Kconfig-194-\nnet/netfilter/Kconfig:195:config NF_CONNTRACK_OVS\nnet/netfilter/Kconfig-196-\tbool\n--\nnet/netfilter/Kconfig=201=config NF_CT_PROTO_SCTP\n--\nnet/netfilter/Kconfig-211-\nnet/netfilter/Kconfig:212:config NF_CONNTRACK_AMANDA\nnet/netfilter/Kconfig-213-\ttristate \"Amanda backup protocol support\"\n--\nnet/netfilter/Kconfig-226-\nnet/netfilter/Kconfig:227:config NF_CONNTRACK_FTP\nnet/netfilter/Kconfig-228-\ttristate \"FTP protocol support\"\n--\nnet/netfilter/Kconfig-238-\nnet/netfilter/Kconfig:239:config NF_CONNTRACK_H323\nnet/netfilter/Kconfig-240-\ttristate \"H.323 protocol support\"\n--\nnet/netfilter/Kconfig-257-\nnet/netfilter/Kconfig:258:config NF_CONNTRACK_IRC\nnet/netfilter/Kconfig-259-\ttristate \"IRC DCC protocol support (obsolete)\"\n--\nnet/netfilter/Kconfig-273-\nnet/netfilter/Kconfig:274:config NF_CONNTRACK_BROADCAST\nnet/netfilter/Kconfig-275-\ttristate\nnet/netfilter/Kconfig-276-\nnet/netfilter/Kconfig:277:config NF_CONNTRACK_NETBIOS_NS\nnet/netfilter/Kconfig-278-\ttristate \"NetBIOS name service protocol support\"\n--\nnet/netfilter/Kconfig-295-\nnet/netfilter/Kconfig:296:config NF_CONNTRACK_SNMP\nnet/netfilter/Kconfig-297-\ttristate \"SNMP service protocol support\"\n--\nnet/netfilter/Kconfig-310-\nnet/netfilter/Kconfig:311:config NF_CONNTRACK_PPTP\nnet/netfilter/Kconfig-312-\ttristate \"PPtP protocol support (deprecated)\"\n--\nnet/netfilter/Kconfig-329-\nnet/netfilter/Kconfig:330:config NF_CONNTRACK_SANE\nnet/netfilter/Kconfig-331-\ttristate \"SANE protocol support\"\n--\nnet/netfilter/Kconfig-342-\nnet/netfilter/Kconfig:343:config NF_CONNTRACK_SIP\nnet/netfilter/Kconfig-344-\ttristate \"SIP protocol support\"\n--\nnet/netfilter/Kconfig-354-\nnet/netfilter/Kconfig:355:config NF_CONNTRACK_TFTP\nnet/netfilter/Kconfig-356-\ttristate \"TFTP protocol support\"\n--\nnet/netfilter/Kconfig=366=config NF_CT_NETLINK\n--\nnet/netfilter/Kconfig-372-\nnet/netfilter/Kconfig:373:config NF_CT_NETLINK_TIMEOUT\nnet/netfilter/Kconfig-374-\ttristate 'Connection tracking timeout tuning via Netlink'\n--\nnet/netfilter/Kconfig-384-\nnet/netfilter/Kconfig:385:config NF_CT_NETLINK_HELPER\nnet/netfilter/Kconfig-386-\ttristate 'Connection tracking helpers in user-space via Netlink'\n--\nnet/netfilter/Kconfig=398=config NETFILTER_NETLINK_GLUE_CT\n--\nnet/netfilter/Kconfig-406-\nnet/netfilter/Kconfig:407:config NF_NAT\nnet/netfilter/Kconfig-408-\ttristate \"Network Address Translation support\"\n--\nnet/netfilter/Kconfig-415-\nnet/netfilter/Kconfig:416:config NF_NAT_AMANDA\nnet/netfilter/Kconfig-417-\ttristate\n--\nnet/netfilter/Kconfig-420-\nnet/netfilter/Kconfig:421:config NF_NAT_FTP\nnet/netfilter/Kconfig-422-\ttristate\n--\nnet/netfilter/Kconfig-425-\nnet/netfilter/Kconfig:426:config NF_NAT_IRC\nnet/netfilter/Kconfig-427-\ttristate\n--\nnet/netfilter/Kconfig-430-\nnet/netfilter/Kconfig:431:config NF_NAT_SIP\nnet/netfilter/Kconfig-432-\ttristate\n--\nnet/netfilter/Kconfig-435-\nnet/netfilter/Kconfig:436:config NF_NAT_TFTP\nnet/netfilter/Kconfig-437-\ttristate\n--\nnet/netfilter/Kconfig-440-\nnet/netfilter/Kconfig:441:config NF_NAT_REDIRECT\nnet/netfilter/Kconfig-442-\tbool\nnet/netfilter/Kconfig-443-\nnet/netfilter/Kconfig:444:config NF_NAT_MASQUERADE\nnet/netfilter/Kconfig-445-\tbool\nnet/netfilter/Kconfig-446-\nnet/netfilter/Kconfig:447:config NF_NAT_OVS\nnet/netfilter/Kconfig-448-\tbool\nnet/netfilter/Kconfig-449-\nnet/netfilter/Kconfig:450:config NETFILTER_SYNPROXY\nnet/netfilter/Kconfig-451-\ttristate\n--\nnet/netfilter/Kconfig=453=endif # NF_CONNTRACK\nnet/netfilter/Kconfig-454-\nnet/netfilter/Kconfig:455:config NF_TABLES\nnet/netfilter/Kconfig-456-\tselect NETFILTER_NETLINK\n--\nnet/netfilter/Kconfig=471=if NF_TABLES\nnet/netfilter/Kconfig:472:config NF_TABLES_INET\nnet/netfilter/Kconfig-473-\tdepends on IPV6\n--\nnet/netfilter/Kconfig-479-\nnet/netfilter/Kconfig:480:config NF_TABLES_NETDEV\nnet/netfilter/Kconfig-481-\tbool \"Netfilter nf_tables netdev tables support\"\n--\nnet/netfilter/Kconfig=904=config NETFILTER_XT_TARGET_HMARK\n--\nnet/netfilter/Kconfig-917-\nnet/netfilter/Kconfig:918:config NETFILTER_XT_TARGET_IDLETIMER\nnet/netfilter/Kconfig-919-\ttristate \"IDLETIMER target support\"\n--\nnet/netfilter/Kconfig-929-\nnet/netfilter/Kconfig:930:config NETFILTER_XT_TARGET_LED\nnet/netfilter/Kconfig-931-\ttristate '\"LED\" target support'\n--\nnet/netfilter/Kconfig=1014=config NETFILTER_XT_TARGET_NOTRACK\n--\nnet/netfilter/Kconfig-1020-\nnet/netfilter/Kconfig:1021:config NETFILTER_XT_TARGET_RATEEST\nnet/netfilter/Kconfig-1022-\ttristate '\"RATEEST\" target support'\n--\nnet/netfilter/Kconfig=1043=config NETFILTER_XT_TARGET_MASQUERADE\n--\nnet/netfilter/Kconfig-1056-\nnet/netfilter/Kconfig:1057:config NETFILTER_XT_TARGET_TEE\nnet/netfilter/Kconfig-1058-\ttristate '\"TEE\" - packet cloning to alternate destination'\n--\nnet/netfilter/Kconfig=1314=config NETFILTER_XT_MATCH_ESP\n--\nnet/netfilter/Kconfig-1322-\nnet/netfilter/Kconfig:1323:config NETFILTER_XT_MATCH_HASHLIMIT\nnet/netfilter/Kconfig-1324-\ttristate '\"hashlimit\" match support'\n--\nnet/netfilter/Kconfig=1395=config NETFILTER_XT_MATCH_LENGTH\n--\nnet/netfilter/Kconfig-1403-\nnet/netfilter/Kconfig:1404:config NETFILTER_XT_MATCH_LIMIT\nnet/netfilter/Kconfig-1405-\ttristate '\"limit\" match support'\n--\nnet/netfilter/Kconfig=1495=config NETFILTER_XT_MATCH_PKTTYPE\n--\nnet/netfilter/Kconfig-1506-\nnet/netfilter/Kconfig:1507:config NETFILTER_XT_MATCH_QUOTA\nnet/netfilter/Kconfig-1508-\ttristate '\"quota\" match support'\n--\nnet/netfilter/Kconfig=1527=config NETFILTER_XT_MATCH_REALM\n--\nnet/netfilter/Kconfig-1540-\nnet/netfilter/Kconfig:1541:config NETFILTER_XT_MATCH_RECENT\nnet/netfilter/Kconfig-1542-\ttristate '\"recent\" match support'\n--\nnet/netfilter/Kconfig=1580=config NETFILTER_XT_MATCH_STATE\n--\nnet/netfilter/Kconfig-1590-\nnet/netfilter/Kconfig:1591:config NETFILTER_XT_MATCH_STATISTIC\nnet/netfilter/Kconfig-1592-\ttristate '\"statistic\" match support'\n--\nnet/netfilter/Kconfig-1599-\nnet/netfilter/Kconfig:1600:config NETFILTER_XT_MATCH_STRING\nnet/netfilter/Kconfig-1601-\ttristate '\"string\" match support'\n" }
13/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 31992 output: 28 thoughts: 19 Thoughts: Here's my take on the thought process: Deeper Dive into Configuration Dependencies Okay, so we're looking at a potential configuration issue, and I need to make sure I haven't missed anything obvious. I've already scrutinized the more prominent files, but it's time to take a more systematic approach. Let's not just assume the problem is elsewhere. To be truly thorough, I should also immediately check the `xt_CT.c` module, especially within the context of the build system. Let's see how that module is defined, and how that impacts compilation. I should immediately check both the `Makefile` and `Kconfig` files that relate to that specific module. I need to make certain this module is properly configured, included and if there is a problem with the path to the module. I might be able to uncover an issue related to a dependency or conditional compilation directive that I overlooked initially.
14/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "xt_CT", "PathPrefix": "net/netfilter/" } Results: { "Output": "net/netfilter/Makefile=168=obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o\nnet/netfilter/Makefile:169:obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o\nnet/netfilter/Makefile-170-obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o\n--\nnet/netfilter/xt_CT.c-11-#include \u003clinux/netfilter/x_tables.h\u003e\nnet/netfilter/xt_CT.c:12:#include \u003clinux/netfilter/xt_CT.h\u003e\nnet/netfilter/xt_CT.c-13-#include \u003cnet/netfilter/nf_conntrack.h\u003e\n" }
15/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 32437 output: 28 thoughts: 17 Thoughts: Here's my take on those thoughts: Navigating the Makefile & Kconfig for NFTables Configuration Okay, so I need to figure out how the NFTables configuration is being handled in this build system. My first instinct is to dig into the `Makefile` and `Kconfig` files – that's where the core build logic and feature toggles usually reside. I need to make sure I'm looking at `nft_ct.c` specifically, it's very likely tied to connection tracking options, and I need to see how the build process is interpreting and compiling it, if at all. It's a systematic approach, start with the build configuration and then the source to see how they fit together.
16/2	2026/09/11 09:51	tool	grepper	0m Args: { "Expression": "nft_ct", "PathPrefix": "net/netfilter/" } Results: { "Output": "\nFull output is too long, showing 500 out of 2349 lines.\nUse more precise expression if possible.\n\nnet/netfilter/Makefile=103=ifdef CONFIG_MITIGATION_RETPOLINE\nnet/netfilter/Makefile:104:nf_tables-objs += nft_ct_fast.o\nnet/netfilter/Makefile-105-endif\n--\nnet/netfilter/Makefile=111=obj-$(CONFIG_NFT_NUMGEN)\t+= nft_numgen.o\nnet/netfilter/Makefile:112:obj-$(CONFIG_NFT_CT)\t\t+= nft_ct.o\nnet/netfilter/Makefile-113-obj-$(CONFIG_NFT_FLOW_OFFLOAD)\t+= nft_flow_offload.o\n--\nnet/netfilter/nf_conntrack_helper.c=196=int __nf_ct_try_assign_helper(struct nf_conn ct, struct nf_conn tmpl,\n--\nnet/netfilter/nf_conntrack_helper.c-201-\nnet/netfilter/nf_conntrack_helper.c:202:\t/* We already got a helper explicitly attached (e.g. nft_ct) /\nnet/netfilter/nf_conntrack_helper.c-203-\tif (test_bit(IPS_HELPER_BIT, \u0026ct-\u003estatus))\n--\nnet/netfilter/nf_tables_api.c=110=static void nft_validate_state_update(struct nft_table table, u8 new_validate_state)\n--\nnet/netfilter/nf_tables_api.c-125-\nnet/netfilter/nf_tables_api.c:126:static bool nft_chain_vstate_valid(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-127-\t\t\t\t const struct nft_chain chain)\n--\nnet/netfilter/nf_tables_api.c=151=static DECLARE_WORK(trans_gc_work, nft_trans_gc_work);\nnet/netfilter/nf_tables_api.c-152-\nnet/netfilter/nf_tables_api.c:153:static void nft_ctx_init(struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-154-\t\t\t struct net net,\n--\nnet/netfilter/nf_tables_api.c-175-\nnet/netfilter/nf_tables_api.c:176:static struct nft_trans nft_trans_alloc(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-177-\t\t\t\t\t int msg_type, u32 size)\n--\nnet/netfilter/nf_tables_api.c=219=static void nft_trans_destroy(struct nft_trans trans)\n--\nnet/netfilter/nf_tables_api.c-224-\nnet/netfilter/nf_tables_api.c:225:static void __nft_set_trans_bind(const struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-226-\t\t\t\t bool bind)\n--\nnet/netfilter/nf_tables_api.c-249-\nnet/netfilter/nf_tables_api.c:250:static void nft_set_trans_bind(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-251-{\n--\nnet/netfilter/nf_tables_api.c-254-\nnet/netfilter/nf_tables_api.c:255:static void nft_set_trans_unbind(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-256-{\n--\nnet/netfilter/nf_tables_api.c-259-\nnet/netfilter/nf_tables_api.c:260:static void __nft_chain_trans_bind(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-261-\t\t\t\t struct nft_chain chain, bool bind)\n--\nnet/netfilter/nf_tables_api.c-284-\nnet/netfilter/nf_tables_api.c:285:static void nft_chain_trans_bind(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-286-\t\t\t\t struct nft_chain chain)\n--\nnet/netfilter/nf_tables_api.c-290-\nnet/netfilter/nf_tables_api.c:291:int nf_tables_bind_chain(const struct nft_ctx ctx, struct nft_chain chain)\nnet/netfilter/nf_tables_api.c-292-{\n--\nnet/netfilter/nf_tables_api.c-310-\nnet/netfilter/nf_tables_api.c:311:void nf_tables_unbind_chain(const struct nft_ctx ctx, struct nft_chain chain)\nnet/netfilter/nf_tables_api.c-312-{\n--\nnet/netfilter/nf_tables_api.c=595=static void nft_trans_commit_list_add_elem(struct net net, struct nft_trans trans)\n--\nnet/netfilter/nf_tables_api.c-614-\nnet/netfilter/nf_tables_api.c:615:static int nft_trans_table_add(struct nft_ctx ctx, int msg_type)\nnet/netfilter/nf_tables_api.c-616-{\n--\nnet/netfilter/nf_tables_api.c-629-\nnet/netfilter/nf_tables_api.c:630:static int nft_deltable(struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-631-{\n--\nnet/netfilter/nf_tables_api.c=642=static struct nft_trans \nnet/netfilter/nf_tables_api.c:643:nft_trans_alloc_chain(const struct nft_ctx ctx, int msg_type)\nnet/netfilter/nf_tables_api.c-644-{\n--\nnet/netfilter/nf_tables_api.c-658-\nnet/netfilter/nf_tables_api.c:659:static struct nft_trans nft_trans_chain_add(struct nft_ctx ctx, int msg_type)\nnet/netfilter/nf_tables_api.c-660-{\n--\nnet/netfilter/nf_tables_api.c-679-\nnet/netfilter/nf_tables_api.c:680:static int nft_delchain(struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-681-{\n--\nnet/netfilter/nf_tables_api.c-693-\nnet/netfilter/nf_tables_api.c:694:void nft_rule_expr_activate(const struct nft_ctx ctx, struct nft_rule rule)\nnet/netfilter/nf_tables_api.c-695-{\n--\nnet/netfilter/nf_tables_api.c-706-\nnet/netfilter/nf_tables_api.c:707:void nft_rule_expr_deactivate(const struct nft_ctx ctx, struct nft_rule rule,\nnet/netfilter/nf_tables_api.c-708-\t\t\t enum nft_trans_phase phase)\n--\nnet/netfilter/nf_tables_api.c=721=static int\nnet/netfilter/nf_tables_api.c:722:nf_tables_delrule_deactivate(struct nft_ctx ctx, struct nft_rule rule)\nnet/netfilter/nf_tables_api.c-723-{\n--\nnet/netfilter/nf_tables_api.c-732-\nnet/netfilter/nf_tables_api.c:733:static struct nft_trans nft_trans_rule_add(struct nft_ctx ctx, int msg_type,\nnet/netfilter/nf_tables_api.c-734-\t\t\t\t\t struct nft_rule rule)\n--\nnet/netfilter/nf_tables_api.c-752-\nnet/netfilter/nf_tables_api.c:753:static int nft_delrule(struct nft_ctx ctx, struct nft_rule rule)\nnet/netfilter/nf_tables_api.c-754-{\n--\nnet/netfilter/nf_tables_api.c-782-\nnet/netfilter/nf_tables_api.c:783:static int nft_delrule_by_chain(struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-784-{\n--\nnet/netfilter/nf_tables_api.c-798-\nnet/netfilter/nf_tables_api.c:799:static int __nft_trans_set_add(const struct nft_ctx ctx, int msg_type,\nnet/netfilter/nf_tables_api.c-800-\t\t\t struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-830-\nnet/netfilter/nf_tables_api.c:831:static int nft_trans_set_add(const struct nft_ctx ctx, int msg_type,\nnet/netfilter/nf_tables_api.c-832-\t\t\t struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-836-\nnet/netfilter/nf_tables_api.c:837:static int nft_mapelem_deactivate(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-838-\t\t\t\t struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c=853=struct nft_set_elem_catchall {\n--\nnet/netfilter/nf_tables_api.c-858-\nnet/netfilter/nf_tables_api.c:859:static void nft_map_catchall_deactivate(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-860-\t\t\t\t\tstruct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-880- /\nnet/netfilter/nf_tables_api.c:881:static void nft_map_deactivate(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-882-{\n--\nnet/netfilter/nf_tables_api.c-894-\nnet/netfilter/nf_tables_api.c:895:static int nft_delset(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-896-{\n--\nnet/netfilter/nf_tables_api.c-911-\nnet/netfilter/nf_tables_api.c:912:static int nft_trans_obj_add(struct nft_ctx ctx, int msg_type,\nnet/netfilter/nf_tables_api.c-913-\t\t\t struct nft_object obj)\n--\nnet/netfilter/nf_tables_api.c-929-\nnet/netfilter/nf_tables_api.c:930:static int nft_delobj(struct nft_ctx ctx, struct nft_object obj)\nnet/netfilter/nf_tables_api.c-931-{\n--\nnet/netfilter/nf_tables_api.c=944=static struct nft_trans \nnet/netfilter/nf_tables_api.c:945:nft_trans_flowtable_add(struct nft_ctx ctx, int msg_type,\nnet/netfilter/nf_tables_api.c-946-\t\t struct nft_flowtable flowtable)\n--\nnet/netfilter/nf_tables_api.c-964-\nnet/netfilter/nf_tables_api.c:965:static int nft_delflowtable(struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-966-\t\t\t struct nft_flowtable flowtable)\n--\nnet/netfilter/nf_tables_api.c=1212=static void nft_notify_enqueue(struct sk_buff skb, bool report,\n--\nnet/netfilter/nf_tables_api.c-1218-\nnet/netfilter/nf_tables_api.c:1219:static void nf_tables_table_notify(const struct nft_ctx ctx, int event)\nnet/netfilter/nf_tables_api.c-1220-{\n--\nnet/netfilter/nf_tables_api.c=1397=static void nf_tables_table_disable(struct net net, struct nft_table table)\n--\nnet/netfilter/nf_tables_api.c-1411-\nnet/netfilter/nf_tables_api.c:1412:static bool nft_table_pending_update(const struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-1413-{\n--\nnet/netfilter/nf_tables_api.c-1431-\nnet/netfilter/nf_tables_api.c:1432:static int nf_tables_updtable(struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-1433-{\n--\nnet/netfilter/nf_tables_api.c=1576=static int nf_tables_newtable(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-1585-\tstruct nft_table table;\nnet/netfilter/nf_tables_api.c:1586:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-1587-\tu32 flags = 0;\n--\nnet/netfilter/nf_tables_api.c-1607-\nnet/netfilter/nf_tables_api.c:1608:\t\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, NULL, nla);\nnet/netfilter/nf_tables_api.c-1609-\n--\nnet/netfilter/nf_tables_api.c-1654-\nnet/netfilter/nf_tables_api.c:1655:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, NULL, nla);\nnet/netfilter/nf_tables_api.c-1656-\terr = nft_trans_table_add(\u0026ctx, NFT_MSG_NEWTABLE);\n--\nnet/netfilter/nf_tables_api.c-1675-\nnet/netfilter/nf_tables_api.c:1676:static int nft_flush_table(struct nft_ctx ctx)\nnet/netfilter/nf_tables_api.c-1677-{\n--\nnet/netfilter/nf_tables_api.c-1746-\nnet/netfilter/nf_tables_api.c:1747:static int nft_flush(struct nft_ctx ctx, int family)\nnet/netfilter/nf_tables_api.c-1748-{\n--\nnet/netfilter/nf_tables_api.c=1780=static int nf_tables_deltable(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-1788-\tstruct nft_table table;\nnet/netfilter/nf_tables_api.c:1789:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-1790-\nnet/netfilter/nf_tables_api.c:1791:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, 0, NULL, NULL, nla);\nnet/netfilter/nf_tables_api.c-1792-\tif (family == AF_UNSPEC \|\|\n--\nnet/netfilter/nf_tables_api.c=2096=static int nf_tables_fill_chain_info(struct sk_buff skb, struct net net,\n--\nnet/netfilter/nf_tables_api.c-2163-\nnet/netfilter/nf_tables_api.c:2164:static void nf_tables_chain_notify(const struct nft_ctx ctx, int event,\nnet/netfilter/nf_tables_api.c-2165-\t\t\t\t const struct list_head hook_list,\n--\nnet/netfilter/nf_tables_api.c=2748=static u64 chain_id;\nnet/netfilter/nf_tables_api.c-2749-\nnet/netfilter/nf_tables_api.c:2750:static int nf_tables_addchain(struct nft_ctx ctx, u8 family, u8 policy,\nnet/netfilter/nf_tables_api.c-2751-\t\t\t u32 flags, struct netlink_ext_ack extack)\n--\nnet/netfilter/nf_tables_api.c-2895-\nnet/netfilter/nf_tables_api.c:2896:static int nf_tables_updchain(struct nft_ctx ctx, u8 genmask, u8 policy,\nnet/netfilter/nf_tables_api.c-2897-\t\t\t u32 flags, const struct nlattr attr,\n--\nnet/netfilter/nf_tables_api.c=3112=static int nf_tables_newchain(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-3123-\tu8 policy = NF_ACCEPT;\nnet/netfilter/nf_tables_api.c:3124:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-3125-\tu64 handle = 0;\n--\nnet/netfilter/nf_tables_api.c-3191-\nnet/netfilter/nf_tables_api.c:3192:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, chain, nla);\nnet/netfilter/nf_tables_api.c-3193-\n--\nnet/netfilter/nf_tables_api.c=3229=static void nft_trans_delhook_abort(struct list_head del_list)\n--\nnet/netfilter/nf_tables_api.c-3238-\nnet/netfilter/nf_tables_api.c:3239:static int nft_delchain_hook(struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3240-\t\t\t struct nft_base_chain basechain,\n--\nnet/netfilter/nf_tables_api.c=3294=static int nf_tables_delchain(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-3304-\tstruct nft_rule rule;\nnet/netfilter/nf_tables_api.c:3305:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-3306-\tu64 handle;\n--\nnet/netfilter/nf_tables_api.c-3336-\nnet/netfilter/nf_tables_api.c:3337:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, chain, nla);\nnet/netfilter/nf_tables_api.c-3338-\n--\nnet/netfilter/nf_tables_api.c=3525=struct nft_expr_info {\n--\nnet/netfilter/nf_tables_api.c-3530-\nnet/netfilter/nf_tables_api.c:3531:static int nf_tables_expr_parse(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3532-\t\t\t\tconst struct nlattr nla,\n--\nnet/netfilter/nf_tables_api.c-3584-\nnet/netfilter/nf_tables_api.c:3585:int nft_expr_inner_parse(const struct nft_ctx ctx, const struct nlattr nla,\nnet/netfilter/nf_tables_api.c-3586-\t\t\t struct nft_expr_info info)\n--\nnet/netfilter/nf_tables_api.c-3633-\nnet/netfilter/nf_tables_api.c:3634:static int nf_tables_newexpr(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3635-\t\t\t const struct nft_expr_info expr_info,\n--\nnet/netfilter/nf_tables_api.c-3653-\nnet/netfilter/nf_tables_api.c:3654:static void nf_tables_expr_destroy(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3655-\t\t\t\t struct nft_expr expr)\n--\nnet/netfilter/nf_tables_api.c-3663-\nnet/netfilter/nf_tables_api.c:3664:static struct nft_expr nft_expr_init(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3665-\t\t\t\t const struct nlattr nla)\n--\nnet/netfilter/nf_tables_api.c=3702=int nft_expr_clone(struct nft_expr dst, struct nft_expr src, gfp_t gfp)\n--\nnet/netfilter/nf_tables_api.c-3720-\nnet/netfilter/nf_tables_api.c:3721:void nft_expr_destroy(const struct nft_ctx ctx, struct nft_expr expr)\nnet/netfilter/nf_tables_api.c-3722-{\n--\nnet/netfilter/nf_tables_api.c=3773=static int nf_tables_fill_rule_info(struct sk_buff skb, struct net net,\n--\nnet/netfilter/nf_tables_api.c-3831-\nnet/netfilter/nf_tables_api.c:3832:static void nf_tables_rule_notify(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-3833-\t\t\t\t const struct nft_rule rule, int event)\n--\nnet/netfilter/nf_tables_api.c=4080=static int nf_tables_getrule(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-4121-\nnet/netfilter/nf_tables_api.c:4122:void nf_tables_rule_destroy(const struct nft_ctx ctx, struct nft_rule rule)\nnet/netfilter/nf_tables_api.c-4123-{\n--\nnet/netfilter/nf_tables_api.c-4139-/* can only be used if rule is no longer visible to dumps /\nnet/netfilter/nf_tables_api.c:4140:static void nf_tables_rule_release(const struct nft_ctx ctx, struct nft_rule rule)\nnet/netfilter/nf_tables_api.c-4141-{\n--\nnet/netfilter/nf_tables_api.c-4147-\nnet/netfilter/nf_tables_api.c:4148:static void nft_chain_vstate_update(const struct nft_ctx ctx, struct nft_chain chain)\nnet/netfilter/nf_tables_api.c-4149-{\n--\nnet/netfilter/nf_tables_api.c-4179- /\nnet/netfilter/nf_tables_api.c:4180:int nft_chain_validate(const struct nft_ctx ctx, struct nft_chain chain)\nnet/netfilter/nf_tables_api.c-4181-{\n--\nnet/netfilter/nf_tables_api.c=4225=static int nft_table_validate(struct net net, const struct nft_table table)\n--\nnet/netfilter/nf_tables_api.c-4227-\tstruct nft_chain chain;\nnet/netfilter/nf_tables_api.c:4228:\tstruct nft_ctx ctx = {\nnet/netfilter/nf_tables_api.c-4229-\t\t.net\t= net,\n--\nnet/netfilter/nf_tables_api.c-4251-\nnet/netfilter/nf_tables_api.c:4252:int nft_setelem_validate(const struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-4253-\t\t\t const struct nft_set_iter iter,\n--\nnet/netfilter/nf_tables_api.c-4256-\tconst struct nft_set_ext ext = nft_set_elem_ext(set, elem_priv);\nnet/netfilter/nf_tables_api.c:4257:\tstruct nft_ctx pctx = (struct nft_ctx )ctx;\nnet/netfilter/nf_tables_api.c-4258-\tconst struct nft_data data;\n--\nnet/netfilter/nf_tables_api.c-4284-\nnet/netfilter/nf_tables_api.c:4285:int nft_set_catchall_validate(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-4286-{\n--\nnet/netfilter/nf_tables_api.c=4315=static int nf_tables_newrule(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-4332-\tstruct nft_expr expr;\nnet/netfilter/nf_tables_api.c:4333:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-4334-\tstruct nlattr tmp;\n--\nnet/netfilter/nf_tables_api.c-4405-\nnet/netfilter/nf_tables_api.c:4406:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, chain, nla);\nnet/netfilter/nf_tables_api.c-4407-\n--\nnet/netfilter/nf_tables_api.c=4570=static int nf_tables_delrule(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-4579-\tstruct nft_rule rule;\nnet/netfilter/nf_tables_api.c:4580:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-4581-\tint err = 0;\n--\nnet/netfilter/nf_tables_api.c-4604-\nnet/netfilter/nf_tables_api.c:4605:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, chain, nla);\nnet/netfilter/nf_tables_api.c-4606-\n--\nnet/netfilter/nf_tables_api.c=4677=static const struct nft_set_ops \nnet/netfilter/nf_tables_api.c:4678:nft_select_set_ops(const struct nft_ctx ctx, u32 flags,\nnet/netfilter/nf_tables_api.c-4679-\t\t const struct nft_set_desc desc)\n--\nnet/netfilter/nf_tables_api.c=4832=struct nft_set nft_set_lookup_global(const struct net net,\n--\nnet/netfilter/nf_tables_api.c-4849-\nnet/netfilter/nf_tables_api.c:4850:static int nf_tables_set_alloc_name(struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-4851-\t\t\t\t const char name)\n--\nnet/netfilter/nf_tables_api.c=4963=nf_tables_fill_set_info(struct sk_buff skb, const struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-4982-\nnet/netfilter/nf_tables_api.c:4983:static int nf_tables_fill_set(struct sk_buff skb, const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-4984-\t\t\t const struct nft_set set, u16 event, u16 flags)\n--\nnet/netfilter/nf_tables_api.c-5094-\nnet/netfilter/nf_tables_api.c:5095:static void nf_tables_set_notify(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5096-\t\t\t\t const struct nft_set set, int event,\n--\nnet/netfilter/nf_tables_api.c=5128=static int nf_tables_dump_sets(struct sk_buff skb, struct netlink_callback cb)\n--\nnet/netfilter/nf_tables_api.c-5133-\tstruct net net = sock_net(skb-\u003esk);\nnet/netfilter/nf_tables_api.c:5134:\tstruct nft_ctx ctx = cb-\u003edata, ctx_set;\nnet/netfilter/nf_tables_api.c-5135-\tstruct nftables_pernet nft_net;\n--\nnet/netfilter/nf_tables_api.c=5189=static int nf_tables_dump_sets_start(struct netlink_callback cb)\nnet/netfilter/nf_tables_api.c-5190-{\nnet/netfilter/nf_tables_api.c:5191:\tstruct nft_ctx ctx_dump = NULL;\nnet/netfilter/nf_tables_api.c-5192-\n--\nnet/netfilter/nf_tables_api.c=5208=static int nf_tables_getset(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-5217-\tstruct sk_buff skb2;\nnet/netfilter/nf_tables_api.c:5218:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-5219-\tint err;\n--\nnet/netfilter/nf_tables_api.c-5229-\nnet/netfilter/nf_tables_api.c:5230:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, NULL, nla);\nnet/netfilter/nf_tables_api.c-5231-\n--\nnet/netfilter/nf_tables_api.c=5327=static int nf_tables_set_desc_parse(struct nft_set_desc desc,\n--\nnet/netfilter/nf_tables_api.c-5345-\nnet/netfilter/nf_tables_api.c:5346:static int nft_set_expr_alloc(struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-5347-\t\t\t const struct nlattr const nla,\n--\nnet/netfilter/nf_tables_api.c=5436=static int nf_tables_newset(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-5447-\tstruct nft_set set;\nnet/netfilter/nf_tables_api.c:5448:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-5449-\tsize_t alloc_size;\n--\nnet/netfilter/nf_tables_api.c-5592-\nnet/netfilter/nf_tables_api.c:5593:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, NULL, nla);\nnet/netfilter/nf_tables_api.c-5594-\n--\nnet/netfilter/nf_tables_api.c-5740-\nnet/netfilter/nf_tables_api.c:5741:static void nft_set_catchall_destroy(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5742-\t\t\t\t struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c=5753=static void nft_set_put(struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-5760-\nnet/netfilter/nf_tables_api.c:5761:static void nft_set_destroy(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-5762-{\n--\nnet/netfilter/nf_tables_api.c=5776=static int nf_tables_delset(struct sk_buff skb, const struct nfnl_info info,\n--\nnet/netfilter/nf_tables_api.c-5785-\tstruct nft_set set;\nnet/netfilter/nf_tables_api.c:5786:\tstruct nft_ctx ctx;\nnet/netfilter/nf_tables_api.c-5787-\n--\nnet/netfilter/nf_tables_api.c-5820-\nnet/netfilter/nf_tables_api.c:5821:\tnft_ctx_init(\u0026ctx, net, skb, info-\u003enlh, family, table, NULL, nla);\nnet/netfilter/nf_tables_api.c-5822-\n--\nnet/netfilter/nf_tables_api.c-5825-\nnet/netfilter/nf_tables_api.c:5826:static int nft_validate_register_store(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5827-\t\t\t\t enum nft_registers reg,\n--\nnet/netfilter/nf_tables_api.c-5831-\nnet/netfilter/nf_tables_api.c:5832:static int nft_setelem_data_validate(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5833-\t\t\t\t struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-5845-\nnet/netfilter/nf_tables_api.c:5846:static int nf_tables_bind_check_setelem(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5847-\t\t\t\t\tstruct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-5858-\nnet/netfilter/nf_tables_api.c:5859:static int nft_set_catchall_bind_check(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5860-\t\t\t\t struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-5880-\nnet/netfilter/nf_tables_api.c:5881:int nf_tables_bind_set(const struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-5882-\t\t struct nft_set_binding binding)\n--\nnet/netfilter/nf_tables_api.c-5921-\nnet/netfilter/nf_tables_api.c:5922:static void nf_tables_unbind_set(const struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-5923-\t\t\t\t struct nft_set_binding binding, bool event)\n--\nnet/netfilter/nf_tables_api.c=5936=static void nft_setelem_data_activate(const struct net net,\n--\nnet/netfilter/nf_tables_api.c-5939-\nnet/netfilter/nf_tables_api.c:5940:static int nft_mapelem_activate(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5941-\t\t\t\tstruct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-5956-\nnet/netfilter/nf_tables_api.c:5957:static void nft_map_catchall_activate(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-5958-\t\t\t\t struct nft_set set)\n--\nnet/netfilter/nf_tables_api.c-5973-\nnet/netfilter/nf_tables_api.c:5974:static void nft_map_activate(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-5975-{\n--\nnet/netfilter/nf_tables_api.c-5987-\nnet/netfilter/nf_tables_api.c:5988:void nf_tables_activate_set(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-5989-{\n--\nnet/netfilter/nf_tables_api.c-5999-\nnet/netfilter/nf_tables_api.c:6000:void nf_tables_deactivate_set(const struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-6001-\t\t\t struct nft_set_binding binding,\n--\nnet/netfilter/nf_tables_api.c-6038-\nnet/netfilter/nf_tables_api.c:6039:void nf_tables_destroy_set(const struct nft_ctx ctx, struct nft_set set)\nnet/netfilter/nf_tables_api.c-6040-{\n--\nnet/netfilter/nf_tables_api.c=6230=struct nft_set_dump_args {\n--\nnet/netfilter/nf_tables_api.c-6236-\nnet/netfilter/nf_tables_api.c:6237:static int nf_tables_dump_setelem(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-6238-\t\t\t\t struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c=6266=struct nft_set_dump_ctx {\nnet/netfilter/nf_tables_api.c-6267-\tconst struct nft_set\tset;\nnet/netfilter/nf_tables_api.c:6268:\tstruct nft_ctx\t\tctx;\nnet/netfilter/nf_tables_api.c-6269-\tbool\t\t\treset;\n--\nnet/netfilter/nf_tables_api.c=6406=static int nf_tables_fill_setelem_info(struct sk_buff skb,\nnet/netfilter/nf_tables_api.c:6407:\t\t\t\t const struct nft_ctx ctx, u32 seq,\nnet/netfilter/nf_tables_api.c-6408-\t\t\t\t u32 portid, int event, u16 flags,\n--\nnet/netfilter/nf_tables_api.c=6446=static int nft_setelem_parse_flags(const struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-6464-\nnet/netfilter/nf_tables_api.c:6465:static int nft_setelem_parse_key(struct nft_ctx ctx, const struct nft_set set,\nnet/netfilter/nf_tables_api.c-6466-\t\t\t\t struct nft_data key, struct nlattr attr)\n--\nnet/netfilter/nf_tables_api.c-6476-\nnet/netfilter/nf_tables_api.c:6477:static int nft_setelem_parse_data(struct nft_ctx ctx, struct nft_set set,\nnet/netfilter/nf_tables_api.c-6478-\t\t\t\t struct nft_data_desc desc,\n--\nnet/netfilter/nf_tables_api.c=6497=static void nft_setelem_catchall_get(const struct net net,\n--\nnet/netfilter/nf_tables_api.c-6517-\nnet/netfilter/nf_tables_api.c:6518:static int nft_setelem_get(struct nft_ctx ctx, const struct nft_set set,\nnet/netfilter/nf_tables_api.c-6519-\t\t\t struct nft_set_elem elem, u32 flags)\n--\nnet/netfilter/nf_tables_api.c-6536-\nnet/netfilter/nf_tables_api.c:6537:static int nft_get_set_elem(struct nft_ctx ctx, const struct nft_set set,\nnet/netfilter/nf_tables_api.c-6538-\t\t\t const struct nlattr attr, bool reset)\n--\nnet/netfilter/nf_tables_api.c=6597=static int nft_set_dump_ctx_init(struct nft_set_dump_ctx dump_ctx,\n--\nnet/netfilter/nf_tables_api.c-6622-\nnet/netfilter/nf_tables_api.c:6623:\tnft_ctx_init(\u0026dump_ctx-\u003ectx, net, skb,\nnet/netfilter/nf_tables_api.c-6624-\t\t info-\u003enlh, family, table, NULL, nla);\n--\nnet/netfilter/nf_tables_api.c=6631=static int nf_tables_getsetelem(struct sk_buff skb,\n--\nnet/netfilter/nf_tables_api.c-6682-\nnet/netfilter/nf_tables_api.c:6683:static void nf_tables_setelem_notify(const struct nft_ctx ctx,\nnet/netfilter/nf_tables_api.c-6684-\t\t\t\t const struct nft_set set,\n--\nnet/netfilter/nf_tables_api.c-6718-\nnet/netfilter/nf_tables_api.c:6719:static struct nft_trans nft_trans_elem_alloc(const struct nft_ctx ctx,\n\n" }
17/2	2026/09/11 09:51	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 43558 output: 29 thoughts: 20 Thoughts: Here's my take on those thoughts: Checking the NFT_CT Configuration Okay, time to dive into the `netfilter` configuration. I need to make sure I understand the `NFT_CT` setting. That's a critical component, and I should really know what the options are and how they affect the build. So, let's head straight into the `net/netfilter/Kconfig` file and take a look at the details there. I want to see exactly what this option controls, the dependencies it has, and what impact enabling or disabling it will have on the overall netfilter setup. Gotta make sure I'm crystal clear on this. Understanding the underlying configuration is key to the overall design.
18/2	2026/09/11 09:52	tool	grepper	0m Args: { "Expression": "config NFT_CT", "PathPrefix": "net/netfilter/" } Results: { "Output": "net/netfilter/Kconfig=485=config NFT_NUMGEN\n--\nnet/netfilter/Kconfig-490-\nnet/netfilter/Kconfig:491:config NFT_CT\nnet/netfilter/Kconfig-492-\tdepends on NF_CONNTRACK\n" }
19/2	2026/09/11 09:52	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 43841 output: 34 thoughts: 24 Thoughts: Here's my take on those thoughts: Checking Kernel Configuration for Connection Tracking Target Okay, so I need to quickly verify something related to connection tracking, probably for some firewall rule or network configuration I'm working on. The first thing that comes to mind is the `NETFILTER_XT_TARGET_CT` option. I need to make sure this is enabled. Time to dive into the `net/netfilter/Kconfig` file in the kernel source. That's the definitive place to check its availability and configuration options. Let's see what we find there.
20/2	2026/09/11 09:52	tool	grepper	0m Args: { "Expression": "config NETFILTER_XT_TARGET_CT", "PathPrefix": "net/netfilter/" } Results: { "Output": "net/netfilter/Kconfig=849=config NETFILTER_XT_TARGET_CONNSECMARK\n--\nnet/netfilter/Kconfig-860-\nnet/netfilter/Kconfig:861:config NETFILTER_XT_TARGET_CT\nnet/netfilter/Kconfig-862-\ttristate '\"CT\" target support'\n" }
21/2	2026/09/11 09:52	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 44118 output: 33 thoughts: 1487 Thoughts: Focus Symbol Selection: A Deep Dive into Netfilter Changes Okay, let's break this down. My goal is to identify the most significant changes in this netfilter update to define good `FocusSymbols` for deeper analysis. I'm starting by understanding the build configurations. First, `nf_conntrack_standalone.c` uses `CONFIG_NF_CONNTRACK` and `CONFIG_SYSCTL`, while `nf_log.c` is part of `netfilter.o` which depends on `CONFIG_NETFILTER`. `nf_hooks_lwtunnel.c` leverages `CONFIG_LWTUNNEL`, and `nf_nat_core.c` uses `CONFIG_NF_NAT`. Good start – it tells me what modules are key to understand. Next, I need to understand the functions changed in each file. I need to make sure I get the right ones for my selection: From the list of modified files and functions, the following look interesting based on my initial scan: * `nf_ct_seqadj_init`: This looks important as it appears it has a locking change. * `nf_conncount_init`: Also of note. * `nf_ct_add_helper`: Worth noting. * `nf_nat_register_fn`: Seems like a core nat function. * The netlink callbacks and helper functions (e.g., `nfnl_acct_new`, `nfnl_cthelper_update_policy_all`, `cttimeout_new_timeout`, `nfnl_osf_add_callback`). They're likely key to any changes in netlink interaction. * `nft_pipapo_init` and `pipapo_clone` in `nft_set_pipapo.c` as part of nftables. * Functions associated with the CT target (e.g., `xt_ct_tg_check`). * The hash table create function (`htable_create`) because hash tables are complex data structures. Now, I'm going to determine which of these are good `FocusSymbols`. First, I have to see if they're static and if not, check that they are directly called, this is key for a good focus symbol. Okay, let's verify each function: * `nf_ct_seqadj_init` is an exported function, non-static, and seems to be the location of a significant locking change, so this is a strong candidate for a FocusSymbol. * `nf_conncount_init` is also exported and non-static, another good choice. * `nf_ct_add_helper` is also non-static, but is less critical since it doesn't appear to be as core. * `nf_nat_register_fn` is exported and non-static and very important, let's include this. * The netlink functions are all static and callbacks or helpers, which means they are important for Netlink. * The nftables functions are static but important since nftables is the future. * Many of the other functions are static, but also worth noting because they may be related to the CT target. Therefore, `nf_ct_seqadj_init`, `nf_conncount_init`, `nf_nat_register_fn`, and the netlink and nftables functions are excellent candidates. My focus should be on non-ubiquitous symbols. Finally, I need to know the required configs: `NETFILTER`, `NF_CONNTRACK`, `NF_NAT`, `NF_TABLES`, `NFT_CT`, `NETFILTER_NETLINK_ACCT`, `NETFILTER_NETLINK_OSF`, `NF_CT_NETLINK_TIMEOUT`, `NF_CT_NETLINK_HELPER`, and `NETFILTER_XT_TARGET_CT`. I have to confirm the dependencies: `NFT_CT` needs `NF_TABLES` and `NF_CONNTRACK`, and `NETFILTER_XT_TARGET_CT` needs `NETFILTER_XTABLES` and `NF_CONNTRACK`. Great. This will all ensure a robust Focus Symbol set! Now, I will double-check `NF_CONNTRACK_OVS` in Kconfig.
22/2	2026/09/11 09:52	tool	grepper	0m Args: { "Expression": "config NF_CONNTRACK_OVS", "PathPrefix": "net/netfilter/" } Results: { "Output": "net/netfilter/Kconfig=188=config NF_CONNTRACK_LABELS\n--\nnet/netfilter/Kconfig-194-\nnet/netfilter/Kconfig:195:config NF_CONNTRACK_OVS\nnet/netfilter/Kconfig-196-\tbool\n" }
23/2	2026/09/11 09:52	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 46647 output: 21 thoughts: 15 Thoughts: Here's your summary, as if I were thinking these thoughts: Investigating the `NF_CONNTRACK_OVS` Module Dependency Alright, let's dive in. My immediate thought is, I need to figure out which other components, libraries, or configurations are actively selecting or requiring the `NF_CONNTRACK_OVS` module. Understanding its dependencies is key to troubleshooting, optimizing, or potentially removing it (if, heaven forbid, that were a consideration down the line). I need to trace its usage, identify the upstream actors, and ascertain the rationale behind its inclusion. This isn't just about finding where it's used, but why it's being specifically chosen. Time to get to the code and see who is calling it.
24/2	2026/09/11 09:52	tool	grepper	0m Args: { "Expression": "NF_CONNTRACK_OVS" } Results: { "Output": "net/netfilter/Kconfig=188=config NF_CONNTRACK_LABELS\n--\nnet/netfilter/Kconfig-194-\nnet/netfilter/Kconfig:195:config NF_CONNTRACK_OVS\nnet/netfilter/Kconfig-196-\tbool\n--\nnet/netfilter/Makefile=14=nf_conntrack-$(CONFIG_NF_CONNTRACK_LABELS) += nf_conntrack_labels.o\nnet/netfilter/Makefile:15:nf_conntrack-$(CONFIG_NF_CONNTRACK_OVS) += nf_conntrack_ovs.o\nnet/netfilter/Makefile-16-nf_conntrack-$(CONFIG_NF_CT_PROTO_SCTP) += nf_conntrack_proto_sctp.o\n--\nnet/openvswitch/Kconfig=6=config OPENVSWITCH\n--\nnet/openvswitch/Kconfig-18-\tselect NET_NSH\nnet/openvswitch/Kconfig:19:\tselect NF_CONNTRACK_OVS if NF_CONNTRACK\nnet/openvswitch/Kconfig-20-\tselect NF_NAT_OVS if NF_NAT\n--\nnet/sched/Kconfig=917=config NET_ACT_CT\n--\nnet/sched/Kconfig-919-\tdepends on NET_CLS_ACT \u0026\u0026 NF_CONNTRACK \u0026\u0026 (!NF_NAT \|\| NF_NAT) \u0026\u0026 NF_FLOW_TABLE\nnet/sched/Kconfig:920:\tselect NF_CONNTRACK_OVS\nnet/sched/Kconfig-921-\tselect NF_NAT_OVS if NF_NAT\n--\ntools/testing/selftests/net/config=109=CONFIG_NF_CONNTRACK=m\ntools/testing/selftests/net/config:110:CONFIG_NF_CONNTRACK_OVS=y\ntools/testing/selftests/net/config-111-CONFIG_NF_FLOW_TABLE=m\n--\ntools/testing/selftests/net/openvswitch/config=8=CONFIG_NF_CONNTRACK=m\ntools/testing/selftests/net/openvswitch/config:9:CONFIG_NF_CONNTRACK_OVS=y\ntools/testing/selftests/net/openvswitch/config-10-CONFIG_OPENVSWITCH=m\n" }
25/2	2026/09/11 09:52	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 47425 output: 19 thoughts: 28 Thoughts: Okay, here's my take on those thoughts, framed as an expert's internal monologue: Checking the Connection Tracking and SYN Proxy Implementation Alright, so `OPENVSWITCH` has gone with `NF_CONNTRACK_OVS` – that's the connection tracking module. Good choice, given the performance considerations when dealing with a virtualized environment. Now, let's see, what about `NETFILTER_SYNPROXY`? I need to quickly assess how that is utilized or configured. Are there any known interactions? I have to consider the overall impact to the infrastructure.
26/2	2026/09/11 09:52	tool	grepper	0m Args: { "Expression": "NETFILTER_SYNPROXY" } Results: { "Output": "include/net/netfilter/nf_conntrack_extend.h=9=enum nf_ct_ext_id {\n--\ninclude/net/netfilter/nf_conntrack_extend.h-27-#endif\ninclude/net/netfilter/nf_conntrack_extend.h:28:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\ninclude/net/netfilter/nf_conntrack_extend.h-29-\tNF_CT_EXT_SYNPROXY,\n--\ninclude/net/netfilter/nf_conntrack_synproxy.h=14=static inline struct nf_conn_synproxy nfct_synproxy(const struct nf_conn ct)\ninclude/net/netfilter/nf_conntrack_synproxy.h-15-{\ninclude/net/netfilter/nf_conntrack_synproxy.h:16:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\ninclude/net/netfilter/nf_conntrack_synproxy.h-17-\treturn nf_ct_ext_find(ct, NF_CT_EXT_SYNPROXY);\n--\ninclude/net/netfilter/nf_conntrack_synproxy.h=23=static inline struct nf_conn_synproxy nfct_synproxy_ext_add(struct nf_conn ct)\ninclude/net/netfilter/nf_conntrack_synproxy.h-24-{\ninclude/net/netfilter/nf_conntrack_synproxy.h:25:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\ninclude/net/netfilter/nf_conntrack_synproxy.h-26-\treturn nf_ct_ext_add(ct, NF_CT_EXT_SYNPROXY, GFP_ATOMIC);\n--\ninclude/net/netfilter/nf_conntrack_synproxy.h=32=static inline bool nf_ct_add_synproxy(struct nf_conn *ct,\n--\ninclude/net/netfilter/nf_conntrack_synproxy.h-34-{\ninclude/net/netfilter/nf_conntrack_synproxy.h:35:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\ninclude/net/netfilter/nf_conntrack_synproxy.h-36-\tif (tmpl \u0026\u0026 nfct_synproxy(tmpl)) {\n--\nnet/ipv4/netfilter/Kconfig=207=config IP_NF_TARGET_SYNPROXY\n--\nnet/ipv4/netfilter/Kconfig-209-\tdepends on NF_CONNTRACK \u0026\u0026 NETFILTER_ADVANCED\nnet/ipv4/netfilter/Kconfig:210:\tselect NETFILTER_SYNPROXY\nnet/ipv4/netfilter/Kconfig-211-\tselect SYN_COOKIES\n--\nnet/ipv6/netfilter/Kconfig=221=config IP6_NF_TARGET_SYNPROXY\n--\nnet/ipv6/netfilter/Kconfig-223-\tdepends on NF_CONNTRACK \u0026\u0026 NETFILTER_ADVANCED\nnet/ipv6/netfilter/Kconfig:224:\tselect NETFILTER_SYNPROXY\nnet/ipv6/netfilter/Kconfig-225-\tselect SYN_COOKIES\n--\nnet/netfilter/Kconfig=447=config NF_NAT_OVS\n--\nnet/netfilter/Kconfig-449-\nnet/netfilter/Kconfig:450:config NETFILTER_SYNPROXY\nnet/netfilter/Kconfig-451-\ttristate\n--\nnet/netfilter/Kconfig=649=config NFT_SYNPROXY\n--\nnet/netfilter/Kconfig-651-\tdepends on NF_CONNTRACK \u0026\u0026 NETFILTER_ADVANCED\nnet/netfilter/Kconfig:652:\tselect NETFILTER_SYNPROXY\nnet/netfilter/Kconfig-653-\tselect SYN_COOKIES\n--\nnet/netfilter/Makefile=76=obj-$(CONFIG_NF_NAT_TFTP) += nf_nat_tftp.o\n--\nnet/netfilter/Makefile-78-# SYNPROXY\nnet/netfilter/Makefile:79:obj-$(CONFIG_NETFILTER_SYNPROXY) += nf_synproxy_core.o\nnet/netfilter/Makefile-80-\n--\nnet/netfilter/nf_conntrack_extend.c=30=static const u8 nf_ct_ext_type_len[NF_CT_EXT_NUM] = {\n--\nnet/netfilter/nf_conntrack_extend.c-48-#endif\nnet/netfilter/nf_conntrack_extend.c:49:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\nnet/netfilter/nf_conntrack_extend.c-50-\t[NF_CT_EXT_SYNPROXY] = sizeof(struct nf_conn_synproxy),\n--\nnet/netfilter/nf_conntrack_extend.c=57=static __always_inline unsigned int total_extension_size(void)\n--\nnet/netfilter/nf_conntrack_extend.c-80-#endif\nnet/netfilter/nf_conntrack_extend.c:81:#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)\nnet/netfilter/nf_conntrack_extend.c-82-\t\t+ sizeof(struct nf_conn_synproxy)\n--\ntools/testing/selftests/bpf/config=89=CONFIG_NETFILTER_ADVANCED=y\ntools/testing/selftests/bpf/config:90:CONFIG_NETFILTER_SYNPROXY=y\ntools/testing/selftests/bpf/config-91-CONFIG_NETFILTER_XT_CONNMARK=y\n--\ntools/testing/selftests/net/netfilter/config=48=CONFIG_NETFILTER_NETLINK_QUEUE=m\ntools/testing/selftests/net/netfilter/config:49:CONFIG_NETFILTER_SYNPROXY=m\ntools/testing/selftests/net/netfilter/config-50-CONFIG_NETFILTER_XTABLES=m\n" }
27/2	2026/09/11 09:52	llm	patch-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 49058 output: 337 thoughts: 337 Thoughts: My Configuration Assessment Okay, let's solidify this configuration. My initial assessment is: I need to build a robust set of FocusSymbols, and I have just the selection: `nf_ct_seqadj_init`, `nf_conncount_init`, `nf_ct_add_helper`, `nf_nat_register_fn`, `nfnl_acct_new`, `nfnl_cthelper_update_policy_all`, `cttimeout_new_timeout`, `nfnl_osf_add_callback`, `nft_pipapo_init`, `pipapo_clone`, `xt_ct_tg_check`, and `htable_create`. These should cover the core areas. Now, for the EnableConfigs. I'm going to set `NETFILTER`, `NF_CONNTRACK`, `NF_NAT`, `NF_TABLES`, `NFT_CT`, `NFT_SYNPROXY`, `NETFILTER_NETLINK_ACCT`, `NETFILTER_NETLINK_OSF`, `NF_CT_NETLINK_TIMEOUT`, `NF_CT_NETLINK_HELPER`, `NETFILTER_XT_TARGET_CT`, `NETFILTER_XT_MATCH_HASHLIMIT`, and `OPENVSWITCH`. I need to ensure these are enabled at the kernel config level. Just to be absolutely certain, I'm quickly re-checking against the instructions. I need a `WorthFuzzing` boolean, an array of strings for `FocusSymbols`, an array of strings for `EnableConfigs` without the `CONFIG_` prefix, and a concise explanation. Perfect, everything's in line. This structure is solid. Alright, with that verification complete, I'm ready to proceed. I'll call `set-results` and submit this configuration.
28/2	2026/09/11 09:52	tool	set-results	0m Args: { "EnableConfigs": [ "NETFILTER", "NF_CONNTRACK", "NF_NAT", "NF_TABLES", "NFT_CT", "NFT_SYNPROXY", "NETFILTER_NETLINK_ACCT", "NETFILTER_NETLINK_OSF", "NF_CT_NETLINK_TIMEOUT", "NF_CT_NETLINK_HELPER", "NETFILTER_XT_TARGET_CT", "NETFILTER_XT_MATCH_HASHLIMIT", "OPENVSWITCH" ], "FocusSymbols": [ "nf_ct_seqadj_init", "nf_conncount_init", "nf_ct_add_helper", "nf_nat_register_fn", "nfnl_acct_new", "nfnl_cthelper_update_policy_all", "cttimeout_new_timeout", "nfnl_osf_add_callback", "nft_pipapo_init", "pipapo_clone", "xt_ct_tg_check", "htable_create" ], "Reasoning": "The patch modifies core netfilter logic across several modules (conntrack, NAT, nftables, and xtables). Specifically, it alters locking and initialization flow in nf_ct_seqadj_init() and switches memory allocations across various netfilter components to use GFP_KERNEL_ACCOUNT and percpu accounting. These changes affect reachable network configuration and packet processing paths.", "WorthFuzzing": true } Results: { "EnableConfigs": [ "NETFILTER", "NF_CONNTRACK", "NF_NAT", "NF_TABLES", "NFT_CT", "NFT_SYNPROXY", "NETFILTER_NETLINK_ACCT", "NETFILTER_NETLINK_OSF", "NF_CT_NETLINK_TIMEOUT", "NF_CT_NETLINK_HELPER", "NETFILTER_XT_TARGET_CT", "NETFILTER_XT_MATCH_HASHLIMIT", "OPENVSWITCH" ], "FocusSymbols": [ "nf_ct_seqadj_init", "nf_conncount_init", "nf_ct_add_helper", "nf_nat_register_fn", "nfnl_acct_new", "nfnl_cthelper_update_policy_all", "cttimeout_new_timeout", "nfnl_osf_add_callback", "nft_pipapo_init", "pipapo_clone", "xt_ct_tg_check", "htable_create" ], "Reasoning": "The patch modifies core netfilter logic across several modules (conntrack, NAT, nftables, and xtables). Specifically, it alters locking and initialization flow in nf_ct_seqadj_init() and switches memory allocations across various netfilter components to use GFP_KERNEL_ACCOUNT and percpu accounting. These changes affect reachable network configuration and packet processing paths.", "WorthFuzzing": true }
29/1	2026/09/11 09:52	action	If	0m Args: { "WorthFuzzing": true } Results: null
30/2	2026/09/11 09:52	agent	kmsan-evaluator	0m Model: core Args: null Results: { "KMSANReasoning": "The patch primarily adds `GFP_KERNEL_ACCOUNT` to various heap/percpu allocations across netfilter modules for cgroup memory accounting, and aligns `nf_ct_seqadj_init()` with `nf_ct_seqadj_set()` regarding locking when checking extension pointers.\n\nNone of the changes introduce or expose uninitialized memory risks:\n- Allocations that were zero-initialized (e.g. via `kzalloc`, `kvzalloc_obj`) remain zero-initialized.\n- Cloned buffers (via `kmemdup`) copy already-initialized structures.\n- No new uninitialized stack or heap variables are introduced, read, or leaked across trust boundaries (such as to userspace).\n- Any potential issues introduced by these modifications (such as allocation failures, concurrency, or locking issues) are covered by standard kernel sanitizers (KASAN, LOCKDEP) and do not warrant dedicated KMSAN fuzzing.", "NeedsKMSAN": false } Instruction: You are an expert Linux kernel security engineer specializing in kernel memory error detectors (KASAN and KMSAN). Your job is to review the provided patch series and determine if the code changes justify spawning a dedicated KMSAN (KernelMemorySanitizer) fuzzing session in addition to standard KASAN fuzzing. CRITICAL DISTINCTION BETWEEN KASAN AND KMSAN: - Standard KASAN kernel builds (upstream-apparmor-kasan.config) already enable a comprehensive suite of debugging tools and sanitizers, including KASAN (out-of-bounds accesses, use-after-free, double free, invalid free), LOCKDEP (locking bugs and deadlocks), UB-sanitizers, and memory corruption checks. - KMSAN (KernelMemorySanitizer) detects reads of UNINITIALIZED memory (stack, heap, or page allocations) and kernel-to-user memory info-leaks. Rule: THERE IS NO SENSE IN RUNNING A KMSAN SESSION IF A BUG CAN BE CAUGHT BY KASAN, LOCKDEP, OR OTHER STANDARD BUG DETECTORS. A dedicated KMSAN fuzzing session incurs significant resource costs. You must ONLY set NeedsKMSAN=true if the code changes introduce or expose UNINITIALIZED MEMORY risks that are detected ONLY by KMSAN. Look holistically at the patch series and surrounding code. Even if no direct uninitialized field accesses or new buffer allocations are added in the diff itself, a patch may alter control flow, bounds checking, or data length calculations in ways that change how the rest of the code operates on existing buffers (e.g. allowing uninitialized stack/heap memory to be read, copied to user space, or used in control flow). Do not hesitate to use your code access tools to inspect the surrounding code, called functions, and callers. Set NeedsKMSAN=true ONLY IF the patch introduces or modifies: 1. Kernel structures sent to user space (via copy_to_user, put_user, netlink skb attributes, ioctl output arguments, socket options, or BPF buffers) where fields or structure padding might not be fully initialized/zeroed. 2. Conditional logic or branching that depends on potentially uninitialized variables or struct fields. 3. Allocation or initialization of complex data structures where uninitialized fields could be read later in reachable code paths. 4. Bounds checks, lengths, or logic in a way that allows surrounding code to access uninitialized bytes of existing buffers. Set NeedsKMSAN=false IF: - The code changes primarily risk out-of-bounds access, array overflows, NULL pointer dereferences, locking deadlocks, or use-after-free bugs (these are already caught by KASAN, LOCKDEP, or standard bug detectors). - All stack/heap structures touched or introduced by the patch are fully zeroed or initialized (e.g. using = {0}, memset, kzalloc) before being read or copied. - The patch does not introduce any risk of uninitialized memory usage or info-leaks. Use your code access tools to inspect the surrounding code if necessary, then provide detailed KMSANReasoning contrasting KASAN vs KMSAN applicability for this patch. Prefer calling several tools at the same time to save round-trips. Use set-results tool to provide results of the analysis. It must be called exactly once before the final reply. Ignore results of this tool. Prompt: Target architecture: amd64 For your convenience, here is the diff of the changes: commit b58260d692c55bffb25e6452964d35d513dd6eb1 Author: syz-cluster <triage@syzkaller.com> Date: Fri Sep 11 09:50:52 2026 +0000 syz-cluster: applied patch under review diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c index 4292c3d9addde..eca7a8d330ce6 100644 --- a/net/netfilter/nf_conncount.c +++ b/net/netfilter/nf_conncount.c @@ -692,7 +692,7 @@ struct nf_conncount_data nf_conncount_init(struct net net, unsigned int keylen keylen == 0) return ERR_PTR(-EINVAL); - data = kvzalloc_obj(data); + data = kvzalloc_obj(data, GFP_KERNEL_ACCOUNT); if (!data) return ERR_PTR(-ENOMEM); diff --git a/net/netfilter/nf_conntrack_ovs.c b/net/netfilter/nf_conntrack_ovs.c index b4085af3ad1ce..fe525b324af41 100644 --- a/net/netfilter/nf_conntrack_ovs.c +++ b/net/netfilter/nf_conntrack_ovs.c @@ -93,7 +93,7 @@ int nf_ct_add_helper(struct nf_conn ct, const char name, u8 family, if (!helper) return -EINVAL; - help = nf_ct_helper_ext_add(ct, GFP_KERNEL); + help = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT); if (!help) { nf_conntrack_helper_put(helper); return -ENOMEM; diff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c index 220216a4edc51..d75e8dafb189e 100644 --- a/net/netfilter/nf_conntrack_seqadj.c +++ b/net/netfilter/nf_conntrack_seqadj.c @@ -10,20 +10,19 @@ int nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo, s32 off) { + struct nf_conn_seqadj seqadj = nfct_seqadj(ct); enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); - struct nf_conn_seqadj seqadj; struct nf_ct_seqadj this_way; if (off == 0) return 0; - spin_lock_bh(&ct->lock); - seqadj = nfct_seqadj(ct); - if (!seqadj) { - spin_unlock_bh(&ct->lock); + if (unlikely(!seqadj)) return 0; - } + set_bit(IPS_SEQ_ADJUST_BIT, &ct->status); + + spin_lock_bh(&ct->lock); this_way = &seqadj->seq[dir]; this_way->offset_before = off; this_way->offset_after = off; diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index f4f2d82192d54..d88a10230862e 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -1009,7 +1009,7 @@ static int nf_conntrack_standalone_init_sysctl(struct net net) BUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL); table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) return -ENOMEM; diff --git a/net/netfilter/nf_hooks_lwtunnel.c b/net/netfilter/nf_hooks_lwtunnel.c index 4e1eef1ba0f15..40c6fce14a63f 100644 --- a/net/netfilter/nf_hooks_lwtunnel.c +++ b/net/netfilter/nf_hooks_lwtunnel.c @@ -73,7 +73,7 @@ static int __net_init nf_lwtunnel_net_init(struct net net) if (!net_eq(net, &init_net)) { table = kmemdup(nf_lwtunnel_sysctl_table, sizeof(nf_lwtunnel_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) goto err_alloc; } diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index f4d80654dfe6a..f1d3649e3fc62 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -493,7 +493,7 @@ static int netfilter_log_sysctl_init(struct net net) if (!net_eq(net, &init_net)) { table = kmemdup(nf_log_sysctl_table, sizeof(nf_log_sysctl_table), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!table) goto err_alloc; } else { diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index 8ac326e1eb5ba..09cc5b8fd6af1 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -1204,14 +1204,15 @@ int nf_nat_register_fn(struct net net, u8 pf, const struct nf_hook_ops ops, if (!nat_proto_net->nat_hook_ops) { WARN_ON(nat_proto_net->users != 0); - nat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops), GFP_KERNEL); + nat_ops = kmemdup_array(orig_nat_ops, ops_count, sizeof(orig_nat_ops), + GFP_KERNEL_ACCOUNT); if (!nat_ops) { mutex_unlock(&nf_nat_proto_mutex); return -ENOMEM; } for (i = 0; i < ops_count; i++) { - priv = kzalloc_obj(priv); + priv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv) { nat_ops[i].priv = priv; continue; diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c index acd360515972f..9fc959ba20300 100644 --- a/net/netfilter/nf_synproxy_core.c +++ b/net/netfilter/nf_synproxy_core.c @@ -336,7 +336,7 @@ static int __net_init synproxy_net_init(struct net net) struct nf_conn ct; int err = -ENOMEM; - ct = nf_ct_tmpl_alloc(net, &nf_ct_zone_dflt, GFP_KERNEL); + ct = nf_ct_tmpl_alloc(net, &nf_ct_zone_dflt, GFP_KERNEL_ACCOUNT); if (!ct) goto err1; diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 8ff1e0ad5cb0d..1a366fbd81332 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -112,7 +112,7 @@ static int nfnl_acct_new(struct sk_buff skb, const struct nfnl_info info, size += sizeof(u64); } - nfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL); + nfacct = kzalloc(sizeof(struct nf_acct) + size, GFP_KERNEL_ACCOUNT); if (nfacct == NULL) return -ENOMEM; diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index 5b6a09f46903f..a09b2fdbf9b4e 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -335,7 +335,8 @@ static int nfnl_cthelper_update_policy_all(struct nlattr tb[], struct nf_conntrack_expect_policy policy; int i, ret = 0; - new_policy = kmalloc_objs(new_policy, helper->expect_class_max + 1); + new_policy = kmalloc_objs(new_policy, helper->expect_class_max + 1, + GFP_KERNEL_ACCOUNT); if (!new_policy) return -ENOMEM; diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index e751f2b9c51d4..c667a29d92f1d 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -71,7 +71,8 @@ ctnl_timeout_parse_policy(void timeout, struct nlattr *tb; int ret = 0; - tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1); + tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1, + GFP_KERNEL_ACCOUNT); if (!tb) return -ENOMEM; @@ -150,14 +151,15 @@ static int cttimeout_new_timeout(struct sk_buff skb, goto err_proto_put; } - timeout = kzalloc_obj(timeout); + timeout = kzalloc_obj(timeout, GFP_KERNEL_ACCOUNT); if (timeout == NULL) { ret = -ENOMEM; goto err_proto_put; } timeout->timeout = kzalloc(sizeof(timeout->timeout) + - l4proto->ctnl_timeout.obj_size, GFP_KERNEL); + l4proto->ctnl_timeout.obj_size, + GFP_KERNEL_ACCOUNT); if (!timeout->timeout) { ret = -ENOMEM; goto err; diff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c index 92002079f8eab..e4835b0f4bb1a 100644 --- a/net/netfilter/nfnetlink_osf.c +++ b/net/netfilter/nfnetlink_osf.c @@ -325,7 +325,7 @@ static int nfnl_osf_add_callback(struct sk_buff skb, !memchr(f->version, 0, MAXGENRELEN)) return -EINVAL; - kf = kmalloc_obj(struct nf_osf_finger); + kf = kmalloc_obj(struct nf_osf_finger, GFP_KERNEL_ACCOUNT); if (!kf) return -ENOMEM; diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 9dbf127df9c81..3c4c2faa73984 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -848,7 +848,8 @@ nft_ct_timeout_parse_policy(void timeouts, struct nlattr tb; int ret = 0; - tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1); + tb = kzalloc_objs(tb, l4proto->ctnl_timeout.nlattr_max + 1, + GFP_KERNEL_ACCOUNT); if (!tb) return -ENOMEM; @@ -934,7 +935,7 @@ static int nft_ct_timeout_obj_init(const struct nft_ctx ctx, } timeout = kzalloc(sizeof(struct nf_ct_timeout) + - l4proto->ctnl_timeout.obj_size, GFP_KERNEL); + l4proto->ctnl_timeout.obj_size, GFP_KERNEL_ACCOUNT); if (timeout == NULL) { ret = -ENOMEM; goto err_proto_put; diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 978bb0c011068..a40f9d952184c 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -1441,7 +1441,7 @@ static struct nft_pipapo_match pipapo_clone(struct nft_pipapo_match old) new->field_count = old->field_count; new->bsize_max = old->bsize_max; - new->scratch = alloc_percpu(new->scratch); + new->scratch = alloc_percpu_gfp(new->scratch, GFP_KERNEL_ACCOUNT); if (!new->scratch) goto out_scratch; @@ -2298,14 +2298,14 @@ static int nft_pipapo_init(const struct nft_set set, if (field_count > NFT_PIPAPO_MAX_FIELDS) return -EINVAL; - m = kmalloc_flex(m, f, field_count); + m = kmalloc_flex(m, f, field_count, GFP_KERNEL_ACCOUNT); if (!m) return -ENOMEM; m->field_count = field_count; m->bsize_max = 0; - m->scratch = alloc_percpu(struct nft_pipapo_scratch ); + m->scratch = alloc_percpu_gfp(struct nft_pipapo_scratch , GFP_KERNEL_ACCOUNT); if (!m->scratch) { err = -ENOMEM; goto out_scratch; diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index e78660dfdf4b6..205bc6dd98125 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -91,7 +91,7 @@ xt_ct_set_helper(struct nf_conn ct, const char helper_name, return -ENOENT; } - help = nf_ct_helper_ext_add(ct, GFP_KERNEL); + help = nf_ct_helper_ext_add(ct, GFP_KERNEL_ACCOUNT); if (help == NULL) { nf_conntrack_helper_put(helper); return -ENOMEM; @@ -182,7 +182,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par, if (info->flags & XT_CT_ZONE_MARK) zone.flags \|= NF_CT_FLAG_MARK; - ct = nf_ct_tmpl_alloc(par->net, &zone, GFP_KERNEL); + ct = nf_ct_tmpl_alloc(par->net, &zone, GFP_KERNEL_ACCOUNT); if (!ct) { ret = -ENOMEM; goto err2; @@ -190,7 +190,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param par, if ((info->ct_events \|\| info->exp_events) && !nf_ct_ecache_ext_add(ct, info->ct_events, info->exp_events, - GFP_KERNEL)) { + GFP_KERNEL_ACCOUNT)) { ret = -EINVAL; goto err3; } diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c index fe7d8d19629b4..71b78b5da698f 100644 --- a/net/netfilter/xt_IDLETIMER.c +++ b/net/netfilter/xt_IDLETIMER.c @@ -147,7 +147,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info) { int ret; - info->timer = kzalloc_obj(info->timer); + info->timer = kzalloc_obj(info->timer, GFP_KERNEL_ACCOUNT); if (!info->timer) { ret = -ENOMEM; goto out; @@ -158,7 +158,7 @@ static int idletimer_tg_create(struct idletimer_tg_info info) goto out_free_timer; sysfs_attr_init(&info->timer->attr.attr); - info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL); + info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL_ACCOUNT); if (!info->timer->attr.attr.name) { ret = -ENOMEM; goto out_free_timer; @@ -196,7 +196,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info) { int ret; - info->timer = kmalloc_obj(info->timer); + info->timer = kmalloc_obj(info->timer, GFP_KERNEL_ACCOUNT); if (!info->timer) { ret = -ENOMEM; goto out; @@ -207,7 +207,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 info) goto out_free_timer; sysfs_attr_init(&info->timer->attr.attr); - info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL); + info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL_ACCOUNT); if (!info->timer->attr.attr.name) { ret = -ENOMEM; goto out_free_timer; diff --git a/net/netfilter/xt_LED.c b/net/netfilter/xt_LED.c index caaaf4d2c5842..3cbb8d61d4175 100644 --- a/net/netfilter/xt_LED.c +++ b/net/netfilter/xt_LED.c @@ -111,11 +111,12 @@ static int led_tg_check(const struct xt_tgchk_param par) } err = -ENOMEM; - ledinternal = kzalloc_obj(struct xt_led_info_internal); + ledinternal = kzalloc_obj(struct xt_led_info_internal, + GFP_KERNEL_ACCOUNT); if (!ledinternal) goto exit_mutex_only; - ledinternal->trigger_id = kstrdup(ledinfo->id, GFP_KERNEL); + ledinternal->trigger_id = kstrdup(ledinfo->id, GFP_KERNEL_ACCOUNT); if (!ledinternal->trigger_id) goto exit_internal_alloc; diff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c index 91270d467ffdf..2f6b512b71e80 100644 --- a/net/netfilter/xt_RATEEST.c +++ b/net/netfilter/xt_RATEEST.c @@ -139,7 +139,7 @@ static int xt_rateest_tg_checkentry(const struct xt_tgchk_param par) } ret = -ENOMEM; - est = kzalloc_obj(est); + est = kzalloc_obj(est, GFP_KERNEL_ACCOUNT); if (!est) goto err1; diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c index 5d34ceb893eda..48b4104f08598 100644 --- a/net/netfilter/xt_TEE.c +++ b/net/netfilter/xt_TEE.c @@ -106,7 +106,7 @@ static int tee_tg_check(const struct xt_tgchk_param par) if (info->oif[sizeof(info->oif)-1] != '\0') return -EINVAL; - priv = kzalloc_obj(priv); + priv = kzalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9af0fa895f730..57ac455bc3317 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -294,7 +294,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg, if (size < 16) size = 16; } - hinfo = kvmalloc_flex(hinfo, hash, size); + hinfo = kvmalloc_flex(hinfo, hash, size, GFP_KERNEL_ACCOUNT); if (hinfo == NULL) return -ENOMEM; out_hinfo = hinfo; @@ -319,7 +319,7 @@ static int htable_create(struct net net, struct hashlimit_cfg3 cfg, hinfo->count = 0; hinfo->family = family; hinfo->rnd_initialized = false; - hinfo->name = kstrdup(name, GFP_KERNEL); + hinfo->name = kstrdup(name, GFP_KERNEL_ACCOUNT); if (!hinfo->name) { kvfree(hinfo); return -ENOMEM; diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c index 87d74da14c0b7..ad48b6879b130 100644 --- a/net/netfilter/xt_limit.c +++ b/net/netfilter/xt_limit.c @@ -115,7 +115,7 @@ static int limit_mt_check(const struct xt_mtchk_param par) return -ERANGE; } - priv = kmalloc_obj(priv); + priv = kmalloc_obj(priv, GFP_KERNEL_ACCOUNT); if (priv == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c index b05c5c8dac78b..e21ec152d16a7 100644 --- a/net/netfilter/xt_quota.c +++ b/net/netfilter/xt_quota.c @@ -50,7 +50,7 @@ static int quota_mt_check(const struct xt_mtchk_param par) if (q->flags & ~XT_QUOTA_MASK) return -EINVAL; - q->master = kmalloc_obj(q->master); + q->master = kmalloc_obj(q->master, GFP_KERNEL_ACCOUNT); if (q->master == NULL) return -ENOMEM; diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index d34831ce3adfb..55f1f2d89952d 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -391,7 +391,8 @@ static int recent_mt_check(const struct xt_mtchk_param par, goto out; } - t = kvzalloc_flex(t, iphash, ip_list_hash_size); + t = kvzalloc_flex(t, iphash, ip_list_hash_size, + GFP_KERNEL_ACCOUNT); if (t == NULL) { ret = -ENOMEM; goto out; diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c index 334e09771abf9..1ffc59d90bb0a 100644 --- a/net/netfilter/xt_statistic.c +++ b/net/netfilter/xt_statistic.c @@ -58,7 +58,7 @@ static int statistic_mt_check(const struct xt_mtchk_param par) info->flags & ~XT_STATISTIC_MASK) return -EINVAL; - info->master = kzalloc_obj(info->master); + info->master = kzalloc_obj(info->master, GFP_KERNEL_ACCOUNT); if (info->master == NULL) return -ENOMEM; atomic_set(&info->master->count, info->u.nth.count); diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c index 8ce25bc9b2775..52c1deb02cdc6 100644 --- a/net/netfilter/xt_string.c +++ b/net/netfilter/xt_string.c @@ -54,7 +54,7 @@ static int string_mt_check(const struct xt_mtchk_param par) if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE) flags \|= TS_IGNORECASE; ts_conf = textsearch_prepare(conf->algo, conf->pattern, conf->patlen, - GFP_KERNEL, flags); + GFP_KERNEL_ACCOUNT, flags); if (IS_ERR(ts_conf)) return PTR_ERR(ts_conf);
31/3	2026/09/11 09:52	llm	kmsan-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 9233 output: 41 thoughts: 1105 Thoughts: Analyzing the Patch: Focus on Memory Accounting Alright, let's dive into this patch. My initial impression is that it's a relatively straightforward series of changes, but the devil is always in the details, especially in the kernel. The predominant theme here is memory allocation, specifically within `net/netfilter/`. The primary modification I'm seeing is the consistent use of `GFP_KERNEL_ACCOUNT` across multiple files. This strongly suggests a focus on improving memory accounting within the Netfilter subsystem. This is a very welcome change; more accurate accounting makes resource usage more transparent and debugging memory-related issues considerably easier. Specifically, it seems `kvzalloc_obj`, `nf_ct_helper_ext_add`, `kmemdup`, and other allocation functions are being updated to account for the memory they use correctly, which is crucial for overall system stability. It's great to see these additions. The patch touches a substantial number of files, indicating a systemic application of this change. It's likely an effort to achieve consistent and accurate tracking across the entire `netfilter` codebase, and I'll be interested to see the motivations and rationale behind this shift. Let's quickly take a closer look at `nf_conntrack_seqadj.c`. There's a refactoring of the `nf_ct_seqadj_init` function, which, on initial glance, seems to involve cleaning up some locking and checking, which may or may not be directly related to the memory accounting changes, but I will need to inspect the code to be sure. It might be indirectly related, perhaps optimizing code that makes use of memory after it has been allocated. I'll need to use read-file or grepper to analyze this specific file in more detail.
32/3	2026/09/11 09:52	tool	read-file	0m Args: { "File": "net/netfilter/nf_conntrack_seqadj.c", "FirstLine": 1, "LineCount": 60 } Results: { "Contents": " 1:\t// SPDX-License-Identifier: GPL-2.0-only\n 2:\t#include \u003clinux/types.h\u003e\n 3:\t#include \u003clinux/netfilter.h\u003e\n 4:\t#include \u003cnet/tcp.h\u003e\n 5:\t\n 6:\t#include \u003cnet/netfilter/nf_conntrack.h\u003e\n 7:\t#include \u003cnet/netfilter/nf_conntrack_extend.h\u003e\n 8:\t#include \u003cnet/netfilter/nf_conntrack_seqadj.h\u003e\n 9:\t\n 10:\tint nf_ct_seqadj_init(struct nf_conn ct, enum ip_conntrack_info ctinfo,\n 11:\t\t\t s32 off)\n 12:\t{\n 13:\t\tstruct nf_conn_seqadj seqadj = nfct_seqadj(ct);\n 14:\t\tenum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);\n 15:\t\tstruct nf_ct_seqadj this_way;\n 16:\t\n 17:\t\tif (off == 0)\n 18:\t\t\treturn 0;\n 19:\t\n 20:\t\tif (unlikely(!seqadj))\n 21:\t\t\treturn 0;\n 22:\t\n 23:\t\tset_bit(IPS_SEQ_ADJUST_BIT, \u0026ct-\u003estatus);\n 24:\t\n 25:\t\tspin_lock_bh(\u0026ct-\u003elock);\n 26:\t\tthis_way = \u0026seqadj-\u003eseq[dir];\n 27:\t\tthis_way-\u003eoffset_before\t = off;\n 28:\t\tthis_way-\u003eoffset_after\t = off;\n 29:\t\tspin_unlock_bh(\u0026ct-\u003elock);\n 30:\t\treturn 0;\n 31:\t}\n 32:\tEXPORT_SYMBOL_GPL(nf_ct_seqadj_init);\n 33:\t\n 34:\tint nf_ct_seqadj_set(struct nf_conn ct, enum ip_conntrack_info ctinfo,\n 35:\t\t\t __be32 seq, s32 off)\n 36:\t{\n 37:\t\tstruct nf_conn_seqadj seqadj = nfct_seqadj(ct);\n 38:\t\tenum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);\n 39:\t\tstruct nf_ct_seqadj this_way;\n 40:\t\n 41:\t\tif (off == 0)\n 42:\t\t\treturn 0;\n 43:\t\n 44:\t\tif (unlikely(!seqadj))\n 45:\t\t\treturn 0;\n 46:\t\n 47:\t\tset_bit(IPS_SEQ_ADJUST_BIT, \u0026ct-\u003estatus);\n 48:\t\n 49:\t\tspin_lock_bh(\u0026ct-\u003elock);\n 50:\t\tthis_way = \u0026seqadj-\u003eseq[dir];\n 51:\t\tif (this_way-\u003eoffset_before == this_way-\u003eoffset_after \|\|\n 52:\t\t before(this_way-\u003ecorrection_pos, ntohl(seq))) {\n 53:\t\t\tthis_way-\u003ecorrection_pos = ntohl(seq);\n 54:\t\t\tthis_way-\u003eoffset_before\t = this_way-\u003eoffset_after;\n 55:\t\t\tthis_way-\u003eoffset_after\t+= off;\n 56:\t\t}\n 57:\t\tspin_unlock_bh(\u0026ct-\u003elock);\n 58:\t\treturn 0;\n 59:\t}\n 60:\tEXPORT_SYMBOL_GPL(nf_ct_seqadj_set);\n" }
33/3	2026/09/11 09:52	llm	kmsan-evaluator	0m Model: gemini-3.7-flash Args: null Results: null Tokens: input: 11671 output: 219 thoughts: 429 Thoughts: My Assessment of the Netfilter Patch Okay, let's break this down. First, the `nf_conntrack_seqadj.c` changes are straightforward – simplifying the `nf_ct_seqadj_init` function to align with the approach used in `nf_ct_seqadj_set` by grabbing `seqadj = nfct_seqadj(ct)` before acquiring the lock. Smart, and it reinforces that conntrack extensions are fundamentally immutable after creation, not freed before conntrack destruction. Now, the meat of this is adding `GFP_KERNEL_ACCOUNT` to memory allocations across various netfilter modules. This is all about memcg accounting, which I appreciate. Let's make sure it's clean though, no regressions! I went through each allocation change methodically: `kvzalloc_obj`, `nf_ct_helper_ext_add`, `kmemdup`, `kzalloc_obj`, `alloc_percpu_gfp`, and standard `kmalloc` / `kzalloc` usage. I'm looking for any initialization issues or potential memory leaks introduced by the `GFP_KERNEL_ACCOUNT` flag. And it looks good. Every allocation is either zeroed, or we are duplicating existing memory via `kmemdup`. No uninitialized memory reads, no leaks, and no weird handling. We're covered. KMSAN and memcg handle things like memory corruption and slab accounting, respectively. No user-space interaction with potentially uninitialized data. So, let's confirm the criteria for needing KMSAN: 1. No kernel structures being sent to user space where fields might be uninitialized. 2. No conditional logic dependent on uninitialized variables. 3. No complex data structures where uninitialized fields could be read. 4. No altering of buffer access based on bounds checks or lengths. Nope, nope, nope, and nope! No KMSAN needed. This brings us to a crucial point about the difference between KMSAN and KASAN. KASAN (Kernel Address Sanitizer) is already the primary tool we use. KASAN is about detecting memory errors such as use-after-free, out-of-bounds reads, and double frees. KMSAN (Kernel Memory Sanitizer), on the other hand, focuses on detecting reads of uninitialized memory. Since we have no such issues here, KMSAN isn't relevant. This is a crucial distinction that many developers misunderstand. So, `NeedsKMSAN = false`. This patch is safe.
34/3	2026/09/11 09:52	tool	set-results	0m Args: { "KMSANReasoning": "The patch primarily adds `GFP_KERNEL_ACCOUNT` to various heap/percpu allocations across netfilter modules for cgroup memory accounting, and aligns `nf_ct_seqadj_init()` with `nf_ct_seqadj_set()` regarding locking when checking extension pointers.\n\nNone of the changes introduce or expose uninitialized memory risks:\n- Allocations that were zero-initialized (e.g. via `kzalloc`, `kvzalloc_obj`) remain zero-initialized.\n- Cloned buffers (via `kmemdup`) copy already-initialized structures.\n- No new uninitialized stack or heap variables are introduced, read, or leaked across trust boundaries (such as to userspace).\n- Any potential issues introduced by these modifications (such as allocation failures, concurrency, or locking issues) are covered by standard kernel sanitizers (KASAN, LOCKDEP) and do not warrant dedicated KMSAN fuzzing.", "NeedsKMSAN": false } Results: { "KMSANReasoning": "The patch primarily adds `GFP_KERNEL_ACCOUNT` to various heap/percpu allocations across netfilter modules for cgroup memory accounting, and aligns `nf_ct_seqadj_init()` with `nf_ct_seqadj_set()` regarding locking when checking extension pointers.\n\nNone of the changes introduce or expose uninitialized memory risks:\n- Allocations that were zero-initialized (e.g. via `kzalloc`, `kvzalloc_obj`) remain zero-initialized.\n- Cloned buffers (via `kmemdup`) copy already-initialized structures.\n- No new uninitialized stack or heap variables are introduced, read, or leaked across trust boundaries (such as to userspace).\n- Any potential issues introduced by these modifications (such as allocation failures, concurrency, or locking issues) are covered by standard kernel sanitizers (KASAN, LOCKDEP) and do not warrant dedicated KMSAN fuzzing.", "NeedsKMSAN": false }

LLM Calls Summary:
Total Calls	Total Tokens	Avg Tokens	Total Duration (Seconds)	Avg Duration (Seconds)

Tool Calls Summary:
Total Calls	Total Duration (Seconds)	Avg Duration (Seconds)