| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/08/10 19:38 | flow | patch-triage |
3mArgs:null Results: {
"EnableConfigs": [
"NETCONSOLE",
"NETCONSOLE_DYNAMIC",
"CONFIGFS_FS",
"IPV6"
],
"FocusSymbols": [
"local_ip_store",
"remote_ip_store",
"enabled_store",
"netcons_netpoll_setup",
"netconsole_parser_cmdline",
"netpoll_send_udp",
"netpoll_parse_ip_addr"
],
"KMSANReasoning": "The patch refactors how IP addresses are stored and parsed in the netconsole driver by replacing a `union inet_addr` and a boolean `ipv6` flag with a new `struct inet_addr` that explicitly tracks the address family (`AF_UNSPEC`, `AF_INET`, or `AF_INET6`). The `struct netconsole_target` containing these addresses is allocated using `kzalloc_obj` (which zero-initializes the memory), ensuring that the new `family` field defaults to `AF_UNSPEC` and the IP addresses are zeroed. The IP addresses are only exposed to userspace via configfs `show` functions, which format them as strings using `sysfs_emit`, preventing any potential leakage of padding bytes. When constructing network packets, only the exact IPv4 (4 bytes) or IPv6 (16 bytes) address fields are copied into the IP headers, again avoiding any padding leaks. There are no new allocations of uninitialized memory, no structures copied directly to userspace, and no control flow changes that could expose uninitialized memory. Standard KASAN and other bug detectors are sufficient to catch any potential memory corruption or out-of-bounds bugs. Therefore, a dedicated KMSAN fuzzing session is not required.",
"NeedsKMSAN": false,
"Reasoning": "The patch modifies the netconsole driver to track the IP address family (AF_INET, AF_INET6, AF_UNSPEC) independently for local and remote IP addresses, replacing a single `ipv6` boolean flag. This changes how IP addresses are parsed, validated, and used during netconsole setup and message transmission. The modified code is reachable via the netconsole configfs interface (which allows dynamic reconfiguration of targets) and during module initialization via kernel command line parameters. Since this affects core kernel logging functionality and is reachable from userspace via configfs, it is worth fuzzing.",
"WorthFuzzing": true
} |
| 1/1 | 2026/08/10 19:38 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 0f61305e16e2fad4bfae15c06b502c2c2006e9f9\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Mon Aug 10 19:38:21 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c\nindex 03913302328cc..810ded6e48f32 100644\n--- a/drivers/net/netconsole.c\n+++ b/drivers/net/netconsole.c\n@@ -151,6 +151,15 @@ enum target_state {\n \tSTATE_DEACTIVATED,\n };\n \n+struct inet_addr {\n+\t/* Address family: AF_UNSPEC when unset, else AF_INET or AF_INET6 */\n+\tu8\t\t\tfamily;\n+\tunion {\n+\t\t__be32\t\tip;\n+\t\tstruct in6_addr\tin6;\n+\t};\n+};\n+\n /**\n * struct netconsole_target - Represents a configured netconsole target.\n * @list:\tLinks this target into the target_list.\n@@ -181,7 +190,6 @@ enum target_state {\n *\t\tlocal_mac\t(read-only)\n * @local_ip:\tSource IP address of the target (read-write).\n * @remote_ip:\tDestination IP address of the target (read-write).\n- * @ipv6:\tWhether the target addresses are IPv6 (read-write).\n * @local_port:\tSource UDP port of the target (read-write).\n * @remote_port: Destination UDP port of the target (read-write).\n * @remote_mac:\tDestination ethernet address of the target (read-write).\n@@ -212,8 +220,7 @@ struct netconsole_target {\n \tbool\t\t\textended;\n \tbool\t\t\trelease;\n \tstruct netpoll\t\tnp;\n-\tunion inet_addr\t\tlocal_ip, remote_ip;\n-\tbool\t\t\tipv6;\n+\tstruct inet_addr\tlocal_ip, remote_ip;\n \tu16\t\t\tlocal_port, remote_port;\n \tu8\t\t\tremote_mac[ETH_ALEN];\n \t/* protected by target_list_lock; +1 gives scnprintf() room for its\n@@ -415,6 +422,7 @@ static int netcons_take_ipv6(struct netconsole_target *nt,\n \t\t\t\tcontinue;\n \t\t\t/* Got the IP, let's return */\n \t\t\tnt-\u003elocal_ip.in6 = ifp-\u003eaddr;\n+\t\t\tnt-\u003elocal_ip.family = AF_INET6;\n \t\t\terr = 0;\n \t\t\tbreak;\n \t\t}\n@@ -456,28 +464,12 @@ static int netcons_take_ipv4(struct netconsole_target *nt,\n \t}\n \n \tnt-\u003elocal_ip.ip = ifa-\u003eifa_local;\n+\tnt-\u003elocal_ip.family = AF_INET;\n \tnp_info(np, \"local IP %pI4\\n\", \u0026nt-\u003elocal_ip.ip);\n \n \treturn 0;\n }\n \n-/*\n- * Test whether the caller left nt-\u003elocal_ip unset, so that\n- * netcons_netpoll_setup() should auto-populate it from the egress device.\n- *\n- * nt-\u003elocal_ip is a union of __be32 (IPv4) and struct in6_addr (IPv6),\n- * so an IPv6 address whose first 4 bytes are zero (e.g. ::1, ::2,\n- * IPv4-mapped ::ffff:a.b.c.d) must not be tested via the IPv4 arm —\n- * doing so would misclassify a caller-supplied address as unset and\n- * silently overwrite it with whatever address the device exposes.\n- */\n-static bool netcons_local_ip_unset(const struct netconsole_target *nt)\n-{\n-\tif (nt-\u003eipv6)\n-\t\treturn ipv6_addr_any(\u0026nt-\u003elocal_ip.in6);\n-\treturn !nt-\u003elocal_ip.ip;\n-}\n-\n static int netcons_netpoll_setup(struct netconsole_target *nt)\n {\n \tstruct net *net = current-\u003ensproxy-\u003enet_ns;\n@@ -487,6 +479,17 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)\n \tbool ip_overwritten = false;\n \tint err;\n \n+\tif (nt-\u003eremote_ip.family == AF_UNSPEC) {\n+\t\tnp_err(np, \"remote IP address not configured, aborting\\n\");\n+\t\treturn -EDESTADDRREQ;\n+\t}\n+\n+\tif (nt-\u003elocal_ip.family != AF_UNSPEC \u0026\u0026\n+\t nt-\u003elocal_ip.family != nt-\u003eremote_ip.family) {\n+\t\tnp_err(np, \"local and remote IP address families differ, aborting\\n\");\n+\t\treturn -EINVAL;\n+\t}\n+\n \trtnl_lock();\n \tif (np-\u003edev_name[0])\n \t\tndev = __dev_get_by_name(net, np-\u003edev_name);\n@@ -523,16 +526,13 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)\n \t\trtnl_lock();\n \t}\n \n-\tif (netcons_local_ip_unset(nt)) {\n-\t\tif (!nt-\u003eipv6) {\n-\t\t\terr = netcons_take_ipv4(nt, ndev);\n-\t\t\tif (err)\n-\t\t\t\tgoto put;\n-\t\t} else {\n+\tif (nt-\u003elocal_ip.family == AF_UNSPEC) {\n+\t\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\t\terr = netcons_take_ipv6(nt, ndev);\n-\t\t\tif (err)\n-\t\t\t\tgoto put;\n-\t\t}\n+\t\telse\n+\t\t\terr = netcons_take_ipv4(nt, ndev);\n+\t\tif (err)\n+\t\t\tgoto put;\n \t\tip_overwritten = true;\n \t}\n \n@@ -714,24 +714,28 @@ static void netconsole_print_banner(struct netconsole_target *nt)\n \tstruct netpoll *np = \u0026nt-\u003enp;\n \n \tnp_info(np, \"local port %d\\n\", nt-\u003elocal_port);\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003elocal_ip.family == AF_UNSPEC)\n+\t\tnp_info(np, \"local IP unset\\n\");\n+\telse if (nt-\u003elocal_ip.family == AF_INET6)\n \t\tnp_info(np, \"local IPv6 address %pI6c\\n\", \u0026nt-\u003elocal_ip.in6);\n \telse\n \t\tnp_info(np, \"local IPv4 address %pI4\\n\", \u0026nt-\u003elocal_ip.ip);\n \tnp_info(np, \"interface name '%s'\\n\", np-\u003edev_name);\n \tnp_info(np, \"local ethernet address '%pM'\\n\", np-\u003edev_mac);\n \tnp_info(np, \"remote port %d\\n\", nt-\u003eremote_port);\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_UNSPEC)\n+\t\tnp_info(np, \"remote IP unset\\n\");\n+\telse if (nt-\u003eremote_ip.family == AF_INET6)\n \t\tnp_info(np, \"remote IPv6 address %pI6c\\n\", \u0026nt-\u003eremote_ip.in6);\n \telse\n \t\tnp_info(np, \"remote IPv4 address %pI4\\n\", \u0026nt-\u003eremote_ip.ip);\n \tnp_info(np, \"remote ethernet address %pM\\n\", nt-\u003eremote_mac);\n }\n \n-/* Parse the string and populate the `inet_addr` union. Return 0 if IPv4 is\n- * populated, 1 if IPv6 is populated, and -1 upon failure.\n+/* Parse the string and populate the `inet_addr` struct. Return 0 on success\n+ * and -1 upon failure.\n */\n-static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)\n+static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)\n {\n \tconst char *end = NULL;\n \tint len;\n@@ -743,14 +747,18 @@ static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)\n \tif (str[len - 1] == '\\n')\n \t\tlen -= 1;\n \n-\tif (in4_pton(str, len, (void *)addr, -1, \u0026end) \u003e 0 \u0026\u0026\n-\t (!end || *end == 0 || *end == '\\n'))\n+\tif (in4_pton(str, len, (void *)\u0026addr-\u003eip, -1, \u0026end) \u003e 0 \u0026\u0026\n+\t (!end || *end == 0 || *end == '\\n')) {\n+\t\taddr-\u003efamily = AF_INET;\n \t\treturn 0;\n+\t}\n \n \tif (IS_ENABLED(CONFIG_IPV6) \u0026\u0026\n-\t in6_pton(str, len, (void *)addr, -1, \u0026end) \u003e 0 \u0026\u0026\n-\t (!end || *end == 0 || *end == '\\n'))\n-\t\treturn 1;\n+\t in6_pton(str, len, (void *)\u0026addr-\u003ein6, -1, \u0026end) \u003e 0 \u0026\u0026\n+\t (!end || *end == 0 || *end == '\\n')) {\n+\t\taddr-\u003efamily = AF_INET6;\n+\t\treturn 0;\n+\t}\n \n \treturn -1;\n }\n@@ -855,20 +863,24 @@ static ssize_t local_ip_show(struct config_item *item, char *buf)\n {\n \tstruct netconsole_target *nt = to_target(item);\n \n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003elocal_ip.family == AF_UNSPEC)\n+\t\treturn sysfs_emit(buf, \"\\n\");\n+\tif (nt-\u003elocal_ip.family == AF_INET6)\n \t\treturn sysfs_emit(buf, \"%pI6c\\n\", \u0026nt-\u003elocal_ip.in6);\n \telse\n-\t\treturn sysfs_emit(buf, \"%pI4\\n\", \u0026nt-\u003elocal_ip);\n+\t\treturn sysfs_emit(buf, \"%pI4\\n\", \u0026nt-\u003elocal_ip.ip);\n }\n \n static ssize_t remote_ip_show(struct config_item *item, char *buf)\n {\n \tstruct netconsole_target *nt = to_target(item);\n \n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_UNSPEC)\n+\t\treturn sysfs_emit(buf, \"\\n\");\n+\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\treturn sysfs_emit(buf, \"%pI6c\\n\", \u0026nt-\u003eremote_ip.in6);\n \telse\n-\t\treturn sysfs_emit(buf, \"%pI4\\n\", \u0026nt-\u003eremote_ip);\n+\t\treturn sysfs_emit(buf, \"%pI4\\n\", \u0026nt-\u003eremote_ip.ip);\n }\n \n static ssize_t local_mac_show(struct config_item *item, char *buf)\n@@ -1213,7 +1225,6 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,\n {\n \tstruct netconsole_target *nt = to_target(item);\n \tssize_t ret = -EINVAL;\n-\tint ipv6;\n \n \tdynamic_netconsole_mutex_lock();\n \tif (nt-\u003estate == STATE_ENABLED) {\n@@ -1222,10 +1233,8 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,\n \t\tgoto out_unlock;\n \t}\n \n-\tipv6 = netpoll_parse_ip_addr(buf, \u0026nt-\u003elocal_ip);\n-\tif (ipv6 == -1)\n+\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003elocal_ip) \u003c 0)\n \t\tgoto out_unlock;\n-\tnt-\u003eipv6 = !!ipv6;\n \n \tret = count;\n out_unlock:\n@@ -1238,7 +1247,6 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,\n {\n \tstruct netconsole_target *nt = to_target(item);\n \tssize_t ret = -EINVAL;\n-\tint ipv6;\n \n \tdynamic_netconsole_mutex_lock();\n \tif (nt-\u003estate == STATE_ENABLED) {\n@@ -1247,10 +1255,8 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,\n \t\tgoto out_unlock;\n \t}\n \n-\tipv6 = netpoll_parse_ip_addr(buf, \u0026nt-\u003eremote_ip);\n-\tif (ipv6 == -1)\n+\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003eremote_ip) \u003c 0)\n \t\tgoto out_unlock;\n-\tnt-\u003eipv6 = !!ipv6;\n \n \tret = count;\n out_unlock:\n@@ -2061,7 +2067,7 @@ static void netpoll_udp_checksum(struct netconsole_target *nt,\n \n \t/* check needs to be set, since it will be consumed in csum_partial */\n \tudph-\u003echeck = 0;\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\tudph-\u003echeck = csum_ipv6_magic(\u0026nt-\u003elocal_ip.in6,\n \t\t\t\t\t \u0026nt-\u003eremote_ip.in6,\n \t\t\t\t\t udp_len, IPPROTO_UDP,\n@@ -2102,7 +2108,7 @@ static void push_eth(struct netconsole_target *nt, struct sk_buff *skb)\n \tskb_reset_mac_header(skb);\n \tether_addr_copy(eth-\u003eh_source, np-\u003edev-\u003edev_addr);\n \tether_addr_copy(eth-\u003eh_dest, nt-\u003eremote_mac);\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\teth-\u003eh_proto = htons(ETH_P_IPV6);\n \telse\n \t\teth-\u003eh_proto = htons(ETH_P_IP);\n@@ -2171,7 +2177,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\n \t\tWARN_ON_ONCE(!irqs_disabled());\n \n \tudp_len = len + sizeof(struct udphdr);\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\tip_len = udp_len + sizeof(struct ipv6hdr);\n \telse\n \t\tip_len = udp_len + sizeof(struct iphdr);\n@@ -2187,7 +2193,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\n \tskb_put(skb, len);\n \n \tpush_udp(nt, skb, len);\n-\tif (nt-\u003eipv6)\n+\tif (nt-\u003eremote_ip.family == AF_INET6)\n \t\tpush_ipv6(nt, skb, len);\n \telse\n \t\tpush_ipv4(nt, skb, len);\n@@ -2507,10 +2513,8 @@ __releases(\u0026target_list_lock)\n static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\n {\n \tstruct netpoll *np = \u0026nt-\u003enp;\n-\tbool ipversion_set = false;\n \tchar *cur = opt;\n \tchar *delim;\n-\tint ipv6;\n \n \tif (*cur != '@') {\n \t\tdelim = strchr(cur, '@');\n@@ -2524,16 +2528,12 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\n \tcur++;\n \n \tif (*cur != '/') {\n-\t\tipversion_set = true;\n \t\tdelim = strchr(cur, '/');\n \t\tif (!delim)\n \t\t\tgoto parse_failed;\n \t\t*delim = 0;\n-\t\tipv6 = netpoll_parse_ip_addr(cur, \u0026nt-\u003elocal_ip);\n-\t\tif (ipv6 \u003c 0)\n+\t\tif (netpoll_parse_ip_addr(cur, \u0026nt-\u003elocal_ip) \u003c 0)\n \t\t\tgoto parse_failed;\n-\t\telse\n-\t\t\tnt-\u003eipv6 = (bool)ipv6;\n \t\tcur = delim;\n \t}\n \tcur++;\n@@ -2575,13 +2575,11 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\n \tif (!delim)\n \t\tgoto parse_failed;\n \t*delim = 0;\n-\tipv6 = netpoll_parse_ip_addr(cur, \u0026nt-\u003eremote_ip);\n-\tif (ipv6 \u003c 0)\n+\tif (netpoll_parse_ip_addr(cur, \u0026nt-\u003eremote_ip) \u003c 0)\n \t\tgoto parse_failed;\n-\telse if (ipversion_set \u0026\u0026 nt-\u003eipv6 != (bool)ipv6)\n+\tif (nt-\u003elocal_ip.family != AF_UNSPEC \u0026\u0026\n+\t nt-\u003elocal_ip.family != nt-\u003eremote_ip.family)\n \t\tgoto parse_failed;\n-\telse\n-\t\tnt-\u003eipv6 = (bool)ipv6;\n \tcur = delim + 1;\n \n \tif (*cur != 0) {\ndiff --git a/include/linux/netpoll.h b/include/linux/netpoll.h\nindex 1c6b1eec5efd6..ec0821a5b02db 100644\n--- a/include/linux/netpoll.h\n+++ b/include/linux/netpoll.h\n@@ -16,11 +16,6 @@\n #include \u003clinux/ip.h\u003e\n #include \u003clinux/udp.h\u003e\n \n-union inet_addr {\n-\t__be32\t\tip;\n-\tstruct in6_addr\tin6;\n-};\n-\n struct netpoll {\n \tstruct net_device *dev;\n \tnetdevice_tracker dev_tracker;\n"
} |
| 2/1 | 2026/08/10 19:38 | agent | patch-evaluator |
2mModel:best-expensive Args: null Results: {
"EnableConfigs": [
"NETCONSOLE",
"NETCONSOLE_DYNAMIC",
"CONFIGFS_FS",
"IPV6"
],
"FocusSymbols": [
"local_ip_store",
"remote_ip_store",
"enabled_store",
"netcons_netpoll_setup",
"netconsole_parser_cmdline",
"netpoll_send_udp",
"netpoll_parse_ip_addr"
],
"Reasoning": "The patch modifies the netconsole driver to track the IP address family (AF_INET, AF_INET6, AF_UNSPEC) independently for local and remote IP addresses, replacing a single `ipv6` boolean flag. This changes how IP addresses are parsed, validated, and used during netconsole setup and message transmission. The modified code is reachable via the netconsole configfs interface (which allows dynamic reconfiguration of targets) and during module initialization via kernel command line parameters. Since this affects core kernel logging functionality and is reachable from userspace via configfs, it is worth fuzzing.",
"WorthFuzzing": true
}Instruction: You are an expert Linux kernel maintainer. Your job is to review a provided patch series and determine if it makes functional changes to the kernel that should be fuzzed. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on your internal knowledge of the kernel. You must actively use your code access tools to examine the actual source code and confirm any assumptions. Return WorthFuzzing=false if the patch only contains: - Modifications to Documentation/, Kconfig files, or code comments. - Purely decorative changes, such as logging (e.g., pr_err, printk) or tracepoints. - Changes to numeric constants or macros that do not functionally alter execution flow. - Code paths that are impossible to reach in virtualized environments like GCE or QEMU, even when utilizing software-emulated hardware (e.g., usb gadget, mac80211_hwsim). - Code in vendor-specific PCIe switch, SmartNIC, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) that require physical PCIe hardware cards not emulated in standard QEMU. - Driver .remove, .shutdown, or pci_unregister_driver teardown callbacks (e.g., igb_remove) that are executed only during PCI hot-unplug or sysfs driver unbind operations. If it modifies reachable core kernel logic, drivers, or architectures, use your code search tools to verify the code can be executed, then return WorthFuzzing=true. When returning WorthFuzzing=true, you MUST ALSO: 1. Extract any specific kernel functions that should be heavily fuzzed into FocusSymbols. Avoid listing generic hot-path functions to prevent skewed test distributions. Prefer non-static, non-inlined API entrypoint functions over internal static helper functions (which are inlined by the compiler and do not have distinct symbol addresses). 2. Identify any specific CONFIG_ options required to properly test this new/modified feature. Go and look into the Kconfig files and check for ifdefs around the code, do not make assumptions. Also check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed for Kbuild to compile the code statically into vmlinux. List them in the EnableConfigs output array, and DO NOT add a '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: For your convenience, here is the diff of the changes:
commit 0f61305e16e2fad4bfae15c06b502c2c2006e9f9
Author: syz-cluster <triage@syzkaller.com>
Date: Mon Aug 10 19:38:21 2026 +0000
syz-cluster: applied patch under review
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 03913302328cc..810ded6e48f32 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -151,6 +151,15 @@ enum target_state {
STATE_DEACTIVATED,
};
+struct inet_addr {
+ /* Address family: AF_UNSPEC when unset, else AF_INET or AF_INET6 */
+ u8 family;
+ union {
+ __be32 ip;
+ struct in6_addr in6;
+ };
+};
+
/**
* struct netconsole_target - Represents a configured netconsole target.
* @list: Links this target into the target_list.
@@ -181,7 +190,6 @@ enum target_state {
* local_mac (read-only)
* @local_ip: Source IP address of the target (read-write).
* @remote_ip: Destination IP address of the target (read-write).
- * @ipv6: Whether the target addresses are IPv6 (read-write).
* @local_port: Source UDP port of the target (read-write).
* @remote_port: Destination UDP port of the target (read-write).
* @remote_mac: Destination ethernet address of the target (read-write).
@@ -212,8 +220,7 @@ struct netconsole_target {
bool extended;
bool release;
struct netpoll np;
- union inet_addr local_ip, remote_ip;
- bool ipv6;
+ struct inet_addr local_ip, remote_ip;
u16 local_port, remote_port;
u8 remote_mac[ETH_ALEN];
/* protected by target_list_lock; +1 gives scnprintf() room for its
@@ -415,6 +422,7 @@ static int netcons_take_ipv6(struct netconsole_target *nt,
continue;
/* Got the IP, let's return */
nt->local_ip.in6 = ifp->addr;
+ nt->local_ip.family = AF_INET6;
err = 0;
break;
}
@@ -456,28 +464,12 @@ static int netcons_take_ipv4(struct netconsole_target *nt,
}
nt->local_ip.ip = ifa->ifa_local;
+ nt->local_ip.family = AF_INET;
np_info(np, "local IP %pI4\n", &nt->local_ip.ip);
return 0;
}
-/*
- * Test whether the caller left nt->local_ip unset, so that
- * netcons_netpoll_setup() should auto-populate it from the egress device.
- *
- * nt->local_ip is a union of __be32 (IPv4) and struct in6_addr (IPv6),
- * so an IPv6 address whose first 4 bytes are zero (e.g. ::1, ::2,
- * IPv4-mapped ::ffff:a.b.c.d) must not be tested via the IPv4 arm —
- * doing so would misclassify a caller-supplied address as unset and
- * silently overwrite it with whatever address the device exposes.
- */
-static bool netcons_local_ip_unset(const struct netconsole_target *nt)
-{
- if (nt->ipv6)
- return ipv6_addr_any(&nt->local_ip.in6);
- return !nt->local_ip.ip;
-}
-
static int netcons_netpoll_setup(struct netconsole_target *nt)
{
struct net *net = current->nsproxy->net_ns;
@@ -487,6 +479,17 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)
bool ip_overwritten = false;
int err;
+ if (nt->remote_ip.family == AF_UNSPEC) {
+ np_err(np, "remote IP address not configured, aborting\n");
+ return -EDESTADDRREQ;
+ }
+
+ if (nt->local_ip.family != AF_UNSPEC &&
+ nt->local_ip.family != nt->remote_ip.family) {
+ np_err(np, "local and remote IP address families differ, aborting\n");
+ return -EINVAL;
+ }
+
rtnl_lock();
if (np->dev_name[0])
ndev = __dev_get_by_name(net, np->dev_name);
@@ -523,16 +526,13 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)
rtnl_lock();
}
- if (netcons_local_ip_unset(nt)) {
- if (!nt->ipv6) {
- err = netcons_take_ipv4(nt, ndev);
- if (err)
- goto put;
- } else {
+ if (nt->local_ip.family == AF_UNSPEC) {
+ if (nt->remote_ip.family == AF_INET6)
err = netcons_take_ipv6(nt, ndev);
- if (err)
- goto put;
- }
+ else
+ err = netcons_take_ipv4(nt, ndev);
+ if (err)
+ goto put;
ip_overwritten = true;
}
@@ -714,24 +714,28 @@ static void netconsole_print_banner(struct netconsole_target *nt)
struct netpoll *np = &nt->np;
np_info(np, "local port %d\n", nt->local_port);
- if (nt->ipv6)
+ if (nt->local_ip.family == AF_UNSPEC)
+ np_info(np, "local IP unset\n");
+ else if (nt->local_ip.family == AF_INET6)
np_info(np, "local IPv6 address %pI6c\n", &nt->local_ip.in6);
else
np_info(np, "local IPv4 address %pI4\n", &nt->local_ip.ip);
np_info(np, "interface name '%s'\n", np->dev_name);
np_info(np, "local ethernet address '%pM'\n", np->dev_mac);
np_info(np, "remote port %d\n", nt->remote_port);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_UNSPEC)
+ np_info(np, "remote IP unset\n");
+ else if (nt->remote_ip.family == AF_INET6)
np_info(np, "remote IPv6 address %pI6c\n", &nt->remote_ip.in6);
else
np_info(np, "remote IPv4 address %pI4\n", &nt->remote_ip.ip);
np_info(np, "remote ethernet address %pM\n", nt->remote_mac);
}
-/* Parse the string and populate the `inet_addr` union. Return 0 if IPv4 is
- * populated, 1 if IPv6 is populated, and -1 upon failure.
+/* Parse the string and populate the `inet_addr` struct. Return 0 on success
+ * and -1 upon failure.
*/
-static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)
+static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)
{
const char *end = NULL;
int len;
@@ -743,14 +747,18 @@ static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)
if (str[len - 1] == '\n')
len -= 1;
- if (in4_pton(str, len, (void *)addr, -1, &end) > 0 &&
- (!end || *end == 0 || *end == '\n'))
+ if (in4_pton(str, len, (void *)&addr->ip, -1, &end) > 0 &&
+ (!end || *end == 0 || *end == '\n')) {
+ addr->family = AF_INET;
return 0;
+ }
if (IS_ENABLED(CONFIG_IPV6) &&
- in6_pton(str, len, (void *)addr, -1, &end) > 0 &&
- (!end || *end == 0 || *end == '\n'))
- return 1;
+ in6_pton(str, len, (void *)&addr->in6, -1, &end) > 0 &&
+ (!end || *end == 0 || *end == '\n')) {
+ addr->family = AF_INET6;
+ return 0;
+ }
return -1;
}
@@ -855,20 +863,24 @@ static ssize_t local_ip_show(struct config_item *item, char *buf)
{
struct netconsole_target *nt = to_target(item);
- if (nt->ipv6)
+ if (nt->local_ip.family == AF_UNSPEC)
+ return sysfs_emit(buf, "\n");
+ if (nt->local_ip.family == AF_INET6)
return sysfs_emit(buf, "%pI6c\n", &nt->local_ip.in6);
else
- return sysfs_emit(buf, "%pI4\n", &nt->local_ip);
+ return sysfs_emit(buf, "%pI4\n", &nt->local_ip.ip);
}
static ssize_t remote_ip_show(struct config_item *item, char *buf)
{
struct netconsole_target *nt = to_target(item);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_UNSPEC)
+ return sysfs_emit(buf, "\n");
+ if (nt->remote_ip.family == AF_INET6)
return sysfs_emit(buf, "%pI6c\n", &nt->remote_ip.in6);
else
- return sysfs_emit(buf, "%pI4\n", &nt->remote_ip);
+ return sysfs_emit(buf, "%pI4\n", &nt->remote_ip.ip);
}
static ssize_t local_mac_show(struct config_item *item, char *buf)
@@ -1213,7 +1225,6 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,
{
struct netconsole_target *nt = to_target(item);
ssize_t ret = -EINVAL;
- int ipv6;
dynamic_netconsole_mutex_lock();
if (nt->state == STATE_ENABLED) {
@@ -1222,10 +1233,8 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,
goto out_unlock;
}
- ipv6 = netpoll_parse_ip_addr(buf, &nt->local_ip);
- if (ipv6 == -1)
+ if (netpoll_parse_ip_addr(buf, &nt->local_ip) < 0)
goto out_unlock;
- nt->ipv6 = !!ipv6;
ret = count;
out_unlock:
@@ -1238,7 +1247,6 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,
{
struct netconsole_target *nt = to_target(item);
ssize_t ret = -EINVAL;
- int ipv6;
dynamic_netconsole_mutex_lock();
if (nt->state == STATE_ENABLED) {
@@ -1247,10 +1255,8 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,
goto out_unlock;
}
- ipv6 = netpoll_parse_ip_addr(buf, &nt->remote_ip);
- if (ipv6 == -1)
+ if (netpoll_parse_ip_addr(buf, &nt->remote_ip) < 0)
goto out_unlock;
- nt->ipv6 = !!ipv6;
ret = count;
out_unlock:
@@ -2061,7 +2067,7 @@ static void netpoll_udp_checksum(struct netconsole_target *nt,
/* check needs to be set, since it will be consumed in csum_partial */
udph->check = 0;
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
udph->check = csum_ipv6_magic(&nt->local_ip.in6,
&nt->remote_ip.in6,
udp_len, IPPROTO_UDP,
@@ -2102,7 +2108,7 @@ static void push_eth(struct netconsole_target *nt, struct sk_buff *skb)
skb_reset_mac_header(skb);
ether_addr_copy(eth->h_source, np->dev->dev_addr);
ether_addr_copy(eth->h_dest, nt->remote_mac);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
eth->h_proto = htons(ETH_P_IPV6);
else
eth->h_proto = htons(ETH_P_IP);
@@ -2171,7 +2177,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,
WARN_ON_ONCE(!irqs_disabled());
udp_len = len + sizeof(struct udphdr);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
ip_len = udp_len + sizeof(struct ipv6hdr);
else
ip_len = udp_len + sizeof(struct iphdr);
@@ -2187,7 +2193,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,
skb_put(skb, len);
push_udp(nt, skb, len);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
push_ipv6(nt, skb, len);
else
push_ipv4(nt, skb, len);
@@ -2507,10 +2513,8 @@ __releases(&target_list_lock)
static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
{
struct netpoll *np = &nt->np;
- bool ipversion_set = false;
char *cur = opt;
char *delim;
- int ipv6;
if (*cur != '@') {
delim = strchr(cur, '@');
@@ -2524,16 +2528,12 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
cur++;
if (*cur != '/') {
- ipversion_set = true;
delim = strchr(cur, '/');
if (!delim)
goto parse_failed;
*delim = 0;
- ipv6 = netpoll_parse_ip_addr(cur, &nt->local_ip);
- if (ipv6 < 0)
+ if (netpoll_parse_ip_addr(cur, &nt->local_ip) < 0)
goto parse_failed;
- else
- nt->ipv6 = (bool)ipv6;
cur = delim;
}
cur++;
@@ -2575,13 +2575,11 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
if (!delim)
goto parse_failed;
*delim = 0;
- ipv6 = netpoll_parse_ip_addr(cur, &nt->remote_ip);
- if (ipv6 < 0)
+ if (netpoll_parse_ip_addr(cur, &nt->remote_ip) < 0)
goto parse_failed;
- else if (ipversion_set && nt->ipv6 != (bool)ipv6)
+ if (nt->local_ip.family != AF_UNSPEC &&
+ nt->local_ip.family != nt->remote_ip.family)
goto parse_failed;
- else
- nt->ipv6 = (bool)ipv6;
cur = delim + 1;
if (*cur != 0) {
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 1c6b1eec5efd6..ec0821a5b02db 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -16,11 +16,6 @@
#include <linux/ip.h>
#include <linux/udp.h>
-union inet_addr {
- __be32 ip;
- struct in6_addr in6;
-};
-
struct netpoll {
struct net_device *dev;
netdevice_tracker dev_tracker;
|
| 3/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 6429 output: 17 thoughts: 334 Thoughts: **Analyzing the Netconsole Patch** Okay, so I'm looking at this patch that tweaks `netconsole.c` and `netpoll.h`. The gist of it is a refactor of how IP addresses and their families are handled within netconsole. They've yanked the `union inet_addr` from `netpoll.h` and introduced a `struct inet_addr` in `netconsole.c`, which makes sense for better encapsulation. The key addition is the `family` field within `struct inet_addr` (AF_UNSPEC, AF_INET, AF_INET6), and it looks like they've replaced that `ipv6` boolean flag in `netconsole_target` with the `family` field in both `local_ip` and `remote_ip`. This is a pretty significant shift; it allows for independent family tracking for local and remote IPs, and it looks like there's some consistency checking in the mix now. My immediate thought is, is this reachable? And, more importantly, is it fuzzable? Netconsole, as a core kernel feature for sending logs over UDP, is certainly interesting from a security perspective. It's configured either via sysfs (configfs) or the kernel command line. The fact that sysfs is root-reachable and syzkaller can interact with configfs is a huge plus. This makes it a great target if there are bugs. The code changes are touching several important areas: `netconsole_parser_cmdline`, the `*_store` functions (specifically the ones related to setting local and remote IPs), `netcons_netpoll_setup`, and `netpoll_send_udp`. These are all prime locations for bugs. Now, let's see what the config options are for netconsole. I want to check for the options `CONFIG_NETCONSOLE` and `CONFIG_NETCONSOLE_DYNAMIC` (for configfs support) as they have to be enabled to enable the features that are changed by the patch. I'll use `grepper` to search for them. This will tell me if the affected code paths are active, and if so, how broadly used they are. |
| 4/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "config NETCONSOLE"
}Results: {
"Output": "drivers/net/Kconfig=318=config MACSEC\n--\ndrivers/net/Kconfig-326-\ndrivers/net/Kconfig:327:config NETCONSOLE\ndrivers/net/Kconfig-328-\ttristate \"Network console logging support\"\n--\ndrivers/net/Kconfig-333-\ndrivers/net/Kconfig:334:config NETCONSOLE_DYNAMIC\ndrivers/net/Kconfig-335-\tbool \"Dynamic reconfiguration of logging targets\"\n--\ndrivers/net/Kconfig-344-\ndrivers/net/Kconfig:345:config NETCONSOLE_EXTENDED_LOG\ndrivers/net/Kconfig-346-\tbool \"Set kernel extended message by default\"\n--\ndrivers/net/Kconfig-354-\ndrivers/net/Kconfig:355:config NETCONSOLE_PREPEND_RELEASE\ndrivers/net/Kconfig-356-\tbool \"Prepend kernel release version in the message by default\"\n"
} |
| 5/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7482 output: 29 thoughts: 19 Thoughts: Okay, let's dive into this. Here's my thought process on this task: **Analyzing NETCONSOLE Dependencies in Kconfig** Alright, the objective is pretty clear: figure out the dependencies for `NETCONSOLE`. My first instinct is always to go straight to the source. The Kconfig files are the heart of the configuration options, so that's where I need to start. Specifically, I'll go straight to `drivers/net/Kconfig`. That's the most logical place to begin looking for `NETCONSOLE` and understand what needs to be enabled or in place for it to work. I expect to find some `depends on` statements, maybe some `select` statements, and perhaps even some interactions with other network-related configurations. This initial check in Kconfig should tell me the primary prerequisites before digging deeper if necessary. I'll be looking for things like other network drivers that might be required, specific hardware configurations, or even other kernel features that need to be active. This is the first step in understanding the complete configuration landscape for `NETCONSOLE`. |
| 6/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "config NETCONSOLE",
"PathPrefix": "drivers/net/Kconfig"
}Results: {
"Output": "drivers/net/Kconfig=318=config MACSEC\n--\ndrivers/net/Kconfig-326-\ndrivers/net/Kconfig:327:config NETCONSOLE\ndrivers/net/Kconfig-328-\ttristate \"Network console logging support\"\n--\ndrivers/net/Kconfig-333-\ndrivers/net/Kconfig:334:config NETCONSOLE_DYNAMIC\ndrivers/net/Kconfig-335-\tbool \"Dynamic reconfiguration of logging targets\"\n--\ndrivers/net/Kconfig-344-\ndrivers/net/Kconfig:345:config NETCONSOLE_EXTENDED_LOG\ndrivers/net/Kconfig-346-\tbool \"Set kernel extended message by default\"\n--\ndrivers/net/Kconfig-354-\ndrivers/net/Kconfig:355:config NETCONSOLE_PREPEND_RELEASE\ndrivers/net/Kconfig-356-\tbool \"Prepend kernel release version in the message by default\"\n"
} |
| 7/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7999 output: 34 thoughts: 19 Thoughts: Here's my take on the thought process, presented as a first-person summary for an expert: **Diving into the Network Configuration** Okay, time to get my hands dirty with the network configuration. I need to take a look at the `drivers/net/Kconfig` file. I'm focusing specifically around line 327 – that's often where the juicy bits are, especially when dealing with core networking features or perhaps a specific driver I'm trying to understand. I'm expecting to find either a high-level overview of available network features, perhaps some dependencies on other configuration options, or maybe even the configuration options for a particular network driver or technology. Time to crack it open and see what revelations line 327 holds! Let's see what gems we can find. |
| 8/2 | 2026/08/10 19:38 | tool | read-file |
0mArgs:{
"File": "drivers/net/Kconfig",
"FirstLine": 320,
"LineCount": 40
}Results: {
"Contents": " 320:\t\tselect CRYPTO\n 321:\t\tselect CRYPTO_AES\n 322:\t\tselect CRYPTO_GCM\n 323:\t\tselect GRO_CELLS\n 324:\t\thelp\n 325:\t\t MACsec is an encryption standard for Ethernet.\n 326:\t\n 327:\tconfig NETCONSOLE\n 328:\t\ttristate \"Network console logging support\"\n 329:\t\tdepends on PRINTK\n 330:\t\thelp\n 331:\t\t If you want to log kernel messages over the network, enable this.\n 332:\t\t See \u003cfile:Documentation/networking/netconsole.rst\u003e for details.\n 333:\t\n 334:\tconfig NETCONSOLE_DYNAMIC\n 335:\t\tbool \"Dynamic reconfiguration of logging targets\"\n 336:\t\tdepends on NETCONSOLE \u0026\u0026 SYSFS \u0026\u0026 CONFIGFS_FS \u0026\u0026 \\\n 337:\t\t\t\t!(NETCONSOLE=y \u0026\u0026 CONFIGFS_FS=m)\n 338:\t\tselect PRINTK_EXECUTION_CTX\n 339:\t\thelp\n 340:\t\t This option enables the ability to dynamically reconfigure target\n 341:\t\t parameters (interface, IP addresses, port numbers, MAC addresses)\n 342:\t\t at runtime through a userspace interface exported using configfs.\n 343:\t\t See \u003cfile:Documentation/networking/netconsole.rst\u003e for details.\n 344:\t\n 345:\tconfig NETCONSOLE_EXTENDED_LOG\n 346:\t\tbool \"Set kernel extended message by default\"\n 347:\t\tdepends on NETCONSOLE\n 348:\t\tdefault n\n 349:\t\thelp\n 350:\t\t Set extended log support for netconsole message. If this option is\n 351:\t\t set, log messages are transmitted with extended metadata header in a\n 352:\t\t format similar to /dev/kmsg. See\n 353:\t\t \u003cfile:Documentation/networking/netconsole.rst\u003e for details.\n 354:\t\n 355:\tconfig NETCONSOLE_PREPEND_RELEASE\n 356:\t\tbool \"Prepend kernel release version in the message by default\"\n 357:\t\tdepends on NETCONSOLE_EXTENDED_LOG\n 358:\t\tdefault n\n 359:\t\thelp\n"
} |
| 9/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8809 output: 35 thoughts: 207 Thoughts: **Fuzzing the Netconsole Configuration** Okay, so I'm looking at this patch and immediately, `NETCONSOLE` and `NETCONSOLE_DYNAMIC` jump out as the key configurations. The core of this seems to revolve around modifications to IP address handling and validation within netconsole, specifically through changes to functions like `netconsole_parser_cmdline`, `local_ip_store`, `remote_ip_store`, `netcons_netpoll_setup`, and `netpoll_send_udp`. I know that `local_ip_store` and `remote_ip_store` are part of the configfs interface for netconsole, which immediately screams "fuzzable" given Syzkaller's capabilities with configfs. The changes appear functional, so this is about more robust IP parsing and proper tracking of IP families. Definitely worth a deep fuzzing dive. My main focus right now is to identify the critical symbols for fuzzing. So far, I'm thinking: `local_ip_store`, `remote_ip_store`, `netcons_netpoll_setup`, and `netconsole_parser_cmdline`. That last one has me thinking, could it be called during module load or when creating configfs targets? I need to check the call sites for `netconsole_parser_cmdline` to get a clearer picture of how it's invoked. |
| 10/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "netconsole_parser_cmdline",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=1001=static ssize_t enabled_store(struct config_item *item,\n--\ndrivers/net/netconsole.c-1049-\t\t/*\ndrivers/net/netconsole.c:1050:\t\t * Skip netconsole_parser_cmdline() -- all the attributes are\ndrivers/net/netconsole.c-1051-\t\t * already configured via configfs. Just print them out.\n--\ndrivers/net/netconsole.c=2508=__releases(\u0026target_list_lock)\n--\ndrivers/net/netconsole.c-2512-\ndrivers/net/netconsole.c:2513:static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\ndrivers/net/netconsole.c-2514-{\n--\ndrivers/net/netconsole.c=2601=static struct netconsole_target *alloc_param_target(char *target_config,\n--\ndrivers/net/netconsole.c-2628-\t/* Parse parameters and setup netpoll */\ndrivers/net/netconsole.c:2629:\terr = netconsole_parser_cmdline(nt, target_config);\ndrivers/net/netconsole.c-2630-\tif (err)\n"
} |
| 11/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9672 output: 35 thoughts: 110 Thoughts: **Analyzing Potential Kernel Vulnerabilities** Okay, so I'm tracing the potential attack surface here, specifically in relation to `netconsole`. I'm seeing that `netconsole_parser_cmdline` gets called through `alloc_param_target`, which is itself invoked during module initialization or something similar, like initcalls. Ah, wait, correction – looking closer, `alloc_param_target` is actually called from `netconsole_init`. The key thing is, since syzkaller is able to load modules, or more subtly pass module parameters, it might be able to trigger this `netconsole_parser_cmdline` function. My initial thought was configfs could be an entry point. However, `local_ip_store` and `remote_ip_store` *are* definitely reachable through configfs; that's good to keep in mind, and to review that attack path. But let's shift focus to `netcons_netpoll_setup`. I need to dig deeper into the call graph for that function, and see where else it is connected to. It could be an interesting area of study. |
| 12/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "netcons_netpoll_setup",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=444=static int netcons_take_ipv4(struct netconsole_target *nt,\n--\ndrivers/net/netconsole.c-472-\ndrivers/net/netconsole.c:473:static int netcons_netpoll_setup(struct netconsole_target *nt)\ndrivers/net/netconsole.c-474-{\n--\ndrivers/net/netconsole.c=563=static void resume_target(struct netconsole_target *nt)\n--\ndrivers/net/netconsole.c-571-\ndrivers/net/netconsole.c:572:\tif (netcons_netpoll_setup(nt)) {\ndrivers/net/netconsole.c-573-\t\t/* netpoll fails setup once, do not try again. */\n--\ndrivers/net/netconsole.c=1001=static ssize_t enabled_store(struct config_item *item,\n--\ndrivers/net/netconsole.c-1062-\ndrivers/net/netconsole.c:1063:\t\tret = netcons_netpoll_setup(nt);\ndrivers/net/netconsole.c-1064-\t\tif (ret) {\n--\ndrivers/net/netconsole.c=2601=static struct netconsole_target *alloc_param_target(char *target_config,\n--\ndrivers/net/netconsole.c-2639-\ndrivers/net/netconsole.c:2640:\terr = netcons_netpoll_setup(nt);\ndrivers/net/netconsole.c-2641-\tif (err) {\n"
} |
| 13/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 10463 output: 34 thoughts: 101 Thoughts: **Analyzing Network Polling Setup** Okay, so I'm digging into this `netcons_netpoll_setup` function, trying to understand its role. It looks like it's called from a few key places: `enabled_store` within the configfs framework, `resume_target`, and `alloc_param_target`. Given this distribution, `enabled_store` seems like a particularly good symbol to zero in on, along with `local_ip_store` and `remote_ip_store`, as they're clearly related. Hmm, I'm also seeing some modifications to `netpoll_send_udp`. That function is, of course, critical for actually transmitting messages. So, my next logical step is to quickly identify all the callers of `netpoll_send_udp` to get a complete picture of its usage context. Gotta understand how data flows in and out here. |
| 14/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "netpoll_send_udp",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=2145=static void push_ipv6(struct netconsole_target *nt, struct sk_buff *skb,\n--\ndrivers/net/netconsole.c-2168-\ndrivers/net/netconsole.c:2169:static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\ndrivers/net/netconsole.c-2170-\t\t\t int len)\n--\ndrivers/net/netconsole.c-2206-/**\ndrivers/net/netconsole.c:2207: * send_udp - Wrapper for netpoll_send_udp that counts errors\ndrivers/net/netconsole.c-2208- * @nt: target to send message to\n--\ndrivers/net/netconsole.c-2211- *\ndrivers/net/netconsole.c:2212: * Calls netpoll_send_udp and classifies the return value. If an error\ndrivers/net/netconsole.c-2213- * occurred it increments statistics in nt-\u003estats accordingly.\ndrivers/net/netconsole.c:2214: * Only calls netpoll_send_udp if CONFIG_NETCONSOLE_DYNAMIC is disabled.\ndrivers/net/netconsole.c-2215- */\ndrivers/net/netconsole.c=2216=static void send_udp(struct netconsole_target *nt, const char *msg, int len)\ndrivers/net/netconsole.c-2217-{\ndrivers/net/netconsole.c:2218:\tint result = netpoll_send_udp(nt, msg, len);\ndrivers/net/netconsole.c-2219-\n"
} |
| 15/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 11210 output: 33 thoughts: 174 Thoughts: **Analyzing the Netconsole Data Flow** Okay, let's break this down. From what I'm seeing, the `send_udp` function is at the core of the netconsole data transmission. It's called by `write_ext_msg` and `write_msg`, which in turn are invoked by `netconsole_ext_emit` and `netconsole_emit`. These latter functions are registered as console write callbacks, meaning they're triggered whenever something is written to the kernel log, be it through `/dev/kmsg` or a simple `printk`. That makes the whole system accessible and something to keep an eye on. Now, let's pinpoint the key players in this process. I'm focusing on the following symbols: `local_ip_store`, `remote_ip_store`, `enabled_store`, `netcons_netpoll_setup`, `netconsole_parser_cmdline`, and `netpoll_send_udp`. These are likely crucial for configuration, network setup, and actual transmission. Finally, a key question comes to mind: Does `NETCONSOLE_DYNAMIC` configuration need to be enabled for `local_ip_store` and `remote_ip_store` to function correctly? This is an important question. I need to verify that dependency; understanding that will be very important for this system. |
| 16/2 | 2026/08/10 19:38 | tool | grepper |
0mArgs:{
"Expression": "local_ip_store",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=1201=static ssize_t remote_port_store(struct config_item *item,\n--\ndrivers/net/netconsole.c-1222-\ndrivers/net/netconsole.c:1223:static ssize_t local_ip_store(struct config_item *item, const char *buf,\ndrivers/net/netconsole.c-1224-\t\tsize_t count)\n"
} |
| 17/2 | 2026/08/10 19:38 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 11820 output: 19 thoughts: 104 Thoughts: **Configfs Investigation** Okay, so these are definitely configfs callbacks. And, I recall, those are only compiled when `CONFIG_NETCONSOLE_DYNAMIC` is enabled. Time to double-check if `NETCONSOLE` relies on anything else that might need our attention for enablement. It looks like it depends on `PRINTK`, which, in practice, is almost always enabled. Aha, `NETCONSOLE_DYNAMIC` has its own dependencies: `NETCONSOLE && SYSFS && CONFIGFS_FS`. Right, so to get this working, we'll need to enable `CONFIGFS_FS`. Let's just make sure there aren't any gotchas with `CONFIGFS_FS` itself. |
| 18/2 | 2026/08/10 19:39 | tool | grepper |
0mArgs:{
"Expression": "config CONFIGFS_FS"
}Results: {
"Output": "fs/configfs/Kconfig-1-# SPDX-License-Identifier: GPL-2.0-only\nfs/configfs/Kconfig:2:config CONFIGFS_FS\nfs/configfs/Kconfig-3-\ttristate \"Userspace-driven configuration filesystem\"\n"
} |
| 19/2 | 2026/08/10 19:39 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 12165 output: 18 thoughts: 109 Thoughts: **Configuring the Network Console and IPv6 for the Update** Okay, so we're dealing with a `CONFIGFS_FS` issue here, and it's a tristate. Given that, I need to include `NETCONSOLE`, `NETCONSOLE_DYNAMIC`, and `CONFIGFS_FS` in `EnableConfigs`. That covers the core functionality we need. Now, let's see if there are any other related configs that might be useful. Ah, `NETCONSOLE_EXTENDED_LOG`. Not essential, but probably a good idea to enable it for more in-depth logging during testing and debugging. Right, the patch specifically touches IPv6 handling, so `IPV6` is definitely a requirement. Let me just double-check that in `net/ipv6/Kconfig` to be absolutely certain I haven't missed anything. Gotta be thorough. |
| 20/2 | 2026/08/10 19:39 | tool | grepper |
0mArgs:{
"Expression": "config IPV6"
}Results: {
"Output": "net/ipv6/Kconfig-5-\nnet/ipv6/Kconfig:6:menuconfig IPV6\nnet/ipv6/Kconfig-7-\tbool \"The IPv6 protocol\"\n--\nnet/ipv6/Kconfig=19=if IPV6\nnet/ipv6/Kconfig-20-\nnet/ipv6/Kconfig:21:config IPV6_ROUTER_PREF\nnet/ipv6/Kconfig-22-\tbool \"IPv6: Router Preference (RFC 4191) support\"\n--\nnet/ipv6/Kconfig-30-\nnet/ipv6/Kconfig:31:config IPV6_ROUTE_INFO\nnet/ipv6/Kconfig-32-\tbool \"IPv6: Route Information (RFC 4191) support\"\n--\nnet/ipv6/Kconfig-38-\nnet/ipv6/Kconfig:39:config IPV6_OPTIMISTIC_DAD\nnet/ipv6/Kconfig-40-\tbool \"IPv6: Enable RFC 4429 Optimistic DAD\"\n--\nnet/ipv6/Kconfig=102=config INET6_IPCOMP\n--\nnet/ipv6/Kconfig-111-\nnet/ipv6/Kconfig:112:config IPV6_MIP6\nnet/ipv6/Kconfig-113-\ttristate \"IPv6: Mobility\"\n--\nnet/ipv6/Kconfig-119-\nnet/ipv6/Kconfig:120:config IPV6_ILA\nnet/ipv6/Kconfig-121-\ttristate \"IPv6: Identifier Locator Addressing (ILA)\"\n--\nnet/ipv6/Kconfig=146=config INET6_TUNNEL\n--\nnet/ipv6/Kconfig-149-\nnet/ipv6/Kconfig:150:config IPV6_VTI\nnet/ipv6/Kconfig-151-\ttristate \"Virtual (secure) IPv6: tunneling\"\n--\nnet/ipv6/Kconfig-161-\nnet/ipv6/Kconfig:162:config IPV6_SIT\nnet/ipv6/Kconfig-163-\ttristate \"IPv6: IPv6-in-IPv4 tunnel (SIT driver)\"\n--\nnet/ipv6/Kconfig-176-\nnet/ipv6/Kconfig:177:config IPV6_SIT_6RD\nnet/ipv6/Kconfig-178-\tbool \"IPv6: IPv6 Rapid Deployment (6RD)\"\n--\nnet/ipv6/Kconfig-195-\nnet/ipv6/Kconfig:196:config IPV6_NDISC_NODETYPE\nnet/ipv6/Kconfig-197-\tbool\nnet/ipv6/Kconfig-198-\nnet/ipv6/Kconfig:199:config IPV6_TUNNEL\nnet/ipv6/Kconfig-200-\ttristate \"IPv6: IP-in-IPv6 tunnel (RFC2473)\"\n--\nnet/ipv6/Kconfig-209-\nnet/ipv6/Kconfig:210:config IPV6_GRE\nnet/ipv6/Kconfig-211-\ttristate \"IPv6: GRE tunnel\"\n--\nnet/ipv6/Kconfig-227-\nnet/ipv6/Kconfig:228:config IPV6_FOU\nnet/ipv6/Kconfig-229-\ttristate\n--\nnet/ipv6/Kconfig-231-\nnet/ipv6/Kconfig:232:config IPV6_FOU_TUNNEL\nnet/ipv6/Kconfig-233-\ttristate\n--\nnet/ipv6/Kconfig-236-\nnet/ipv6/Kconfig:237:config IPV6_MULTIPLE_TABLES\nnet/ipv6/Kconfig-238-\tbool \"IPv6: Multiple Routing Tables\"\n--\nnet/ipv6/Kconfig-242-\nnet/ipv6/Kconfig:243:config IPV6_SUBTREES\nnet/ipv6/Kconfig-244-\tbool \"IPv6: source address based routing\"\n--\nnet/ipv6/Kconfig-256-\nnet/ipv6/Kconfig:257:config IPV6_MROUTE\nnet/ipv6/Kconfig-258-\tbool \"IPv6: multicast routing\"\n--\nnet/ipv6/Kconfig-264-\nnet/ipv6/Kconfig:265:config IPV6_MROUTE_MULTIPLE_TABLES\nnet/ipv6/Kconfig-266-\tbool \"IPv6: multicast policy routing\"\n--\nnet/ipv6/Kconfig-278-\nnet/ipv6/Kconfig:279:config IPV6_PIMSM_V2\nnet/ipv6/Kconfig-280-\tbool \"IPv6: PIM-SM version 2 support\"\n--\nnet/ipv6/Kconfig-285-\nnet/ipv6/Kconfig:286:config IPV6_SEG6_LWTUNNEL\nnet/ipv6/Kconfig-287-\tbool \"IPv6: Segment Routing Header encapsulation support\"\n--\nnet/ipv6/Kconfig-299-\nnet/ipv6/Kconfig:300:config IPV6_SEG6_HMAC\nnet/ipv6/Kconfig-301-\tbool \"IPv6: Segment Routing HMAC support\"\n--\nnet/ipv6/Kconfig-311-\nnet/ipv6/Kconfig:312:config IPV6_SEG6_BPF\nnet/ipv6/Kconfig-313-\tdef_bool y\n--\nnet/ipv6/Kconfig-316-\nnet/ipv6/Kconfig:317:config IPV6_RPL_LWTUNNEL\nnet/ipv6/Kconfig-318-\tbool \"IPv6: RPL Source Routing Header support\"\n--\nnet/ipv6/Kconfig-327-\nnet/ipv6/Kconfig:328:config IPV6_IOAM6_LWTUNNEL\nnet/ipv6/Kconfig-329-\tbool \"IPv6: IOAM Pre-allocated Trace insertion support\"\n"
} |
| 21/2 | 2026/08/10 19:39 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 14017 output: 34 thoughts: 118 Thoughts: **Examining Network Console Configuration** Okay, so I'm looking at this configuration and `IPV6` is defined as a boolean value. That seems straightforward enough. Now, I want to see if there are any related configurations. Let's see... I've got `NETCONSOLE`, `NETCONSOLE_DYNAMIC`, `CONFIGFS_FS`, and of course, `IPV6` again. I'm going to keep these in mind as potentially related. My attention is also drawn to some specific symbols: `local_ip_store`, `remote_ip_store`, `enabled_store`, `netcons_netpoll_setup`, `netconsole_parser_cmdline`, and `netpoll_send_udp`. These are likely key elements in the network console's operation. Crucially, I need to make sure `netpoll_send_udp` isn't using the static inline optimization. That could impact its behavior and I want to rule that out. |
| 22/2 | 2026/08/10 19:39 | tool | grepper |
0mArgs:{
"Expression": "netpoll_send_udp",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=2145=static void push_ipv6(struct netconsole_target *nt, struct sk_buff *skb,\n--\ndrivers/net/netconsole.c-2168-\ndrivers/net/netconsole.c:2169:static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\ndrivers/net/netconsole.c-2170-\t\t\t int len)\n--\ndrivers/net/netconsole.c-2206-/**\ndrivers/net/netconsole.c:2207: * send_udp - Wrapper for netpoll_send_udp that counts errors\ndrivers/net/netconsole.c-2208- * @nt: target to send message to\n--\ndrivers/net/netconsole.c-2211- *\ndrivers/net/netconsole.c:2212: * Calls netpoll_send_udp and classifies the return value. If an error\ndrivers/net/netconsole.c-2213- * occurred it increments statistics in nt-\u003estats accordingly.\ndrivers/net/netconsole.c:2214: * Only calls netpoll_send_udp if CONFIG_NETCONSOLE_DYNAMIC is disabled.\ndrivers/net/netconsole.c-2215- */\ndrivers/net/netconsole.c=2216=static void send_udp(struct netconsole_target *nt, const char *msg, int len)\ndrivers/net/netconsole.c-2217-{\ndrivers/net/netconsole.c:2218:\tint result = netpoll_send_udp(nt, msg, len);\ndrivers/net/netconsole.c-2219-\n"
} |
| 23/2 | 2026/08/10 19:39 | llm | patch-evaluator |
1mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 14797 output: 33 thoughts: 283 Thoughts: **Analyzing Static Functions in Netconsole** Okay, so I'm looking at this code and the guideline is pretty clear: we want to prefer non-static, non-inlined entry points over internal static helper functions. The goal here is to maintain a clear API boundary, I understand. I see `netpoll_send_udp` and that immediately pops out as a potential issue because it's static. But, it's not inline. So, that's a point in its favor, although I still need to consider it's visibility. Then I scan `local_ip_store` and `remote_ip_store`, also static, but their use as function pointers within a struct means they are unlikely to be inlined and the compiler would need their address. Good, that’s another one that probably won’t cause issues. `netcons_netpoll_setup` is also static, but the sheer size of the thing and its multiple call sites mean the compiler probably *won't* inline it, and it's less of a problem. Now, I'm getting to `netconsole_parser_cmdline`. It's static and gets called from a static function itself, `alloc_param_target`, which is also static, and that gets called from `netconsole_init`. This is a string of static calls and that's concerning. That one is a prime candidate for inlining. So, I need to see if there are any non-static entry points available, let's see... oh wait `netconsole_init`, that looked promising, but nope, it's `static int __init netconsole_init(void)`. Damn. For configfs, the `_store` and `_show` functions are static, but their addresses are being taken so they shouldn't be inlined. I need to dig deeper into the actual public API for this thing. I should check the functions within `netconsole_target_item_ops` or similar structures, to get a better handle on the externally visible API. |
| 24/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "local_ip_store",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=1201=static ssize_t remote_port_store(struct config_item *item,\n--\ndrivers/net/netconsole.c-1222-\ndrivers/net/netconsole.c:1223:static ssize_t local_ip_store(struct config_item *item, const char *buf,\ndrivers/net/netconsole.c-1224-\t\tsize_t count)\n"
} |
| 25/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 15665 output: 37 thoughts: 19 Thoughts: Okay, here's my attempt at summarizing the thought process, as requested, geared toward an expert audience, and written in the first person: **Navigating the Codebase: Targeted Exploration** Alright, I need to get a handle on how this particular function is being utilized. Instead of a broad sweep, I'm going to adopt a more focused approach. Let's not get lost in the weeds. I'll zero in on the vicinity of line 1223. That seems like a reasonable starting point to understand the context of its usage. I’ll make a note of this line number for quick reference and to make sure I don't overlook any related areas. It's a quick and efficient way to start building a mental map of the call stack without getting bogged down in irrelevant details. This targeted reading allows for better comprehension. |
| 26/2 | 2026/08/10 19:40 | tool | read-file |
0mArgs:{
"File": "drivers/net/netconsole.c",
"FirstLine": 1220,
"LineCount": 40
}Results: {
"Contents": "1220:\t\treturn ret;\n1221:\t}\n1222:\t\n1223:\tstatic ssize_t local_ip_store(struct config_item *item, const char *buf,\n1224:\t\t\tsize_t count)\n1225:\t{\n1226:\t\tstruct netconsole_target *nt = to_target(item);\n1227:\t\tssize_t ret = -EINVAL;\n1228:\t\n1229:\t\tdynamic_netconsole_mutex_lock();\n1230:\t\tif (nt-\u003estate == STATE_ENABLED) {\n1231:\t\t\tpr_err(\"target (%s) is enabled, disable to update parameters\\n\",\n1232:\t\t\t config_item_name(\u0026nt-\u003egroup.cg_item));\n1233:\t\t\tgoto out_unlock;\n1234:\t\t}\n1235:\t\n1236:\t\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003elocal_ip) \u003c 0)\n1237:\t\t\tgoto out_unlock;\n1238:\t\n1239:\t\tret = count;\n1240:\tout_unlock:\n1241:\t\tdynamic_netconsole_mutex_unlock();\n1242:\t\treturn ret;\n1243:\t}\n1244:\t\n1245:\tstatic ssize_t remote_ip_store(struct config_item *item, const char *buf,\n1246:\t\t size_t count)\n1247:\t{\n1248:\t\tstruct netconsole_target *nt = to_target(item);\n1249:\t\tssize_t ret = -EINVAL;\n1250:\t\n1251:\t\tdynamic_netconsole_mutex_lock();\n1252:\t\tif (nt-\u003estate == STATE_ENABLED) {\n1253:\t\t\tpr_err(\"target (%s) is enabled, disable to update parameters\\n\",\n1254:\t\t\t config_item_name(\u0026nt-\u003egroup.cg_item));\n1255:\t\t\tgoto out_unlock;\n1256:\t\t}\n1257:\t\n1258:\t\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003eremote_ip) \u003c 0)\n1259:\t\t\tgoto out_unlock;\n"
} |
| 27/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 16497 output: 32 thoughts: 9 Thoughts: Okay, I'm ready to dive into this. Here's a summary from a first-person, expert perspective: **Pinpointing the Source** Alright, so the first thing I need to do is establish the context. This is about registration, so the critical question is *where* are these things registered? What systems, databases, or jurisdictions are we talking about? The specificity of the registration process is key to understanding the next steps. Without knowing the registration body or method, any analysis would be incomplete. Let's see if that detail is apparent. |
| 28/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "CONFIGFS_ATTR",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=1542=static ssize_t sysdata_cpu_nr_enabled_store(struct config_item *item,\n--\ndrivers/net/netconsole.c-1574-\ndrivers/net/netconsole.c:1575:CONFIGFS_ATTR(userdatum_, value);\ndrivers/net/netconsole.c:1576:CONFIGFS_ATTR(sysdata_, cpu_nr_enabled);\ndrivers/net/netconsole.c:1577:CONFIGFS_ATTR(sysdata_, taskname_enabled);\ndrivers/net/netconsole.c:1578:CONFIGFS_ATTR(sysdata_, release_enabled);\ndrivers/net/netconsole.c:1579:CONFIGFS_ATTR(sysdata_, msgid_enabled);\ndrivers/net/netconsole.c-1580-\n--\ndrivers/net/netconsole.c=1651=static const struct config_item_type userdata_type = {\n--\ndrivers/net/netconsole.c-1657-\ndrivers/net/netconsole.c:1658:CONFIGFS_ATTR(, enabled);\ndrivers/net/netconsole.c:1659:CONFIGFS_ATTR(, extended);\ndrivers/net/netconsole.c:1660:CONFIGFS_ATTR(, dev_name);\ndrivers/net/netconsole.c:1661:CONFIGFS_ATTR(, local_port);\ndrivers/net/netconsole.c:1662:CONFIGFS_ATTR(, remote_port);\ndrivers/net/netconsole.c:1663:CONFIGFS_ATTR(, local_ip);\ndrivers/net/netconsole.c:1664:CONFIGFS_ATTR(, remote_ip);\ndrivers/net/netconsole.c:1665:CONFIGFS_ATTR_RO(, local_mac);\ndrivers/net/netconsole.c:1666:CONFIGFS_ATTR(, remote_mac);\ndrivers/net/netconsole.c:1667:CONFIGFS_ATTR(, release);\ndrivers/net/netconsole.c:1668:CONFIGFS_ATTR_RO(, transmit_errors);\ndrivers/net/netconsole.c-1669-\n"
} |
| 29/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 17197 output: 33 thoughts: 173 Thoughts: **Analyzing the Netconsole Code Path** Okay, so I'm diving into this netconsole code and need to figure out the critical execution path. It looks like `local_ip_store` and `remote_ip_store` are definitely function pointers utilized by `CONFIGFS_ATTR`, and they aren't inlined, which is helpful. `enabled_store` is another non-inlined function to keep an eye on. Interesting, `netcons_netpoll_setup` gets called from within `enabled_store`. Now I'm looking further down the call stack. `netpoll_send_udp` is static, which can sometimes be a red flag, but it appears to be a sizeable function. Let's see... `netpoll_send_udp` gets called from `send_udp`. Okay, `send_udp` then feeds into `write_ext_msg` and `write_msg`. Aha! These two functions, `write_ext_msg` and `write_msg`, are registered within `struct console netconsole_ext` and `struct console netconsole`, respectively. That’s the key. This makes `write_ext_msg` and `write_msg` excellent candidates for deeper inspection and analysis. |
| 30/2 | 2026/08/10 19:40 | tool | grepper |
0mError:no matches Args: {
"Expression": "write_ext_msg",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"error": "no matches"
} |
| 31/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 17681 output: 30 thoughts: 14 Thoughts: Okay, let's see. My first thought is: **Checking Console Write Function Nomenclature** Hold on a second, before I dive too deep into this problem, I should just quickly double-check the exact names of the console write functions. I've used them countless times, but it's always good to have a specific memory to refer to. I don't want to get tripped up on something trivial like a capitalization issue or a slightly different naming convention that I'm used to. Better to confirm the syntax and be certain of the foundation before building anything further on top of it. Let me just glance at the relevant documentation or an example snippet... yep, just a quick refresher to make sure I'm on the right track naming-wise. |
| 32/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "struct console",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=112=static struct workqueue_struct *netconsole_wq;\n--\ndrivers/net/netconsole.c-117- */\ndrivers/net/netconsole.c:118:static struct console netconsole_ext, netconsole;\ndrivers/net/netconsole.c-119-\n--\ndrivers/net/netconsole.c=2459=static void netconsole_write(struct nbcon_write_context *wctxt, bool extended)\n--\ndrivers/net/netconsole.c-2486-\ndrivers/net/netconsole.c:2487:static void netconsole_write_ext(struct console *con __always_unused,\ndrivers/net/netconsole.c-2488-\t\t\t\t struct nbcon_write_context *wctxt)\n--\ndrivers/net/netconsole.c-2492-\ndrivers/net/netconsole.c:2493:static void netconsole_write_basic(struct console *con __always_unused,\ndrivers/net/netconsole.c-2494-\t\t\t\t struct nbcon_write_context *wctxt)\n--\ndrivers/net/netconsole.c-2498-\ndrivers/net/netconsole.c:2499:static void netconsole_device_lock(struct console *con __always_unused,\ndrivers/net/netconsole.c-2500-\t\t\t\t unsigned long *flags)\ndrivers/net/netconsole.c=2501=__acquires(\u0026target_list_lock)\n--\ndrivers/net/netconsole.c-2505-\ndrivers/net/netconsole.c:2506:static void netconsole_device_unlock(struct console *con __always_unused,\ndrivers/net/netconsole.c-2507-\t\t\t\t unsigned long flags)\n--\ndrivers/net/netconsole.c=2663=static void free_param_target(struct netconsole_target *nt)\n--\ndrivers/net/netconsole.c-2674-\ndrivers/net/netconsole.c:2675:static struct console netconsole_ext = {\ndrivers/net/netconsole.c-2676-\t.name = \"netcon_ext\",\n--\ndrivers/net/netconsole.c-2683-\ndrivers/net/netconsole.c:2684:static struct console netconsole = {\ndrivers/net/netconsole.c-2685-\t.name = \"netcon\",\n"
} |
| 33/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 18498 output: 32 thoughts: 45 Thoughts: Okay, here's my take on those thoughts, tailored for an expert audience: **Unpacking Netconsole Write Functions** Right, so I'm digging into `netconsole_write_ext` and `netconsole_write_basic`. I need to refresh my memory on the call stack. Hang on... isn't `netconsole_write` the core function that eventually gets down to `send_udp`? Let's quickly verify that. Gotta make sure I'm remembering the control flow correctly before I go any further down this rabbit hole. I really want to ensure my understanding of the fundamental building blocks is solid before I start looking at the more complex interactions. |
| 34/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "netconsole_write",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=2438=static void send_msg_udp(struct netconsole_target *nt, const char *msg,\n--\ndrivers/net/netconsole.c-2452-/**\ndrivers/net/netconsole.c:2453: * netconsole_write - Generic function to send a msg to all targets\ndrivers/net/netconsole.c-2454- * @wctxt: nbcon write context\n--\ndrivers/net/netconsole.c-2458- */\ndrivers/net/netconsole.c:2459:static void netconsole_write(struct nbcon_write_context *wctxt, bool extended)\ndrivers/net/netconsole.c-2460-{\n--\ndrivers/net/netconsole.c-2486-\ndrivers/net/netconsole.c:2487:static void netconsole_write_ext(struct console *con __always_unused,\ndrivers/net/netconsole.c-2488-\t\t\t\t struct nbcon_write_context *wctxt)\ndrivers/net/netconsole.c-2489-{\ndrivers/net/netconsole.c:2490:\tnetconsole_write(wctxt, true);\ndrivers/net/netconsole.c-2491-}\ndrivers/net/netconsole.c-2492-\ndrivers/net/netconsole.c:2493:static void netconsole_write_basic(struct console *con __always_unused,\ndrivers/net/netconsole.c-2494-\t\t\t\t struct nbcon_write_context *wctxt)\ndrivers/net/netconsole.c-2495-{\ndrivers/net/netconsole.c:2496:\tnetconsole_write(wctxt, false);\ndrivers/net/netconsole.c-2497-}\n--\ndrivers/net/netconsole.c=2675=static struct console netconsole_ext = {\n--\ndrivers/net/netconsole.c-2677-\t.flags = CON_ENABLED | CON_EXTENDED | CON_NBCON | CON_NBCON_ATOMIC_UNSAFE,\ndrivers/net/netconsole.c:2678:\t.write_thread = netconsole_write_ext,\ndrivers/net/netconsole.c:2679:\t.write_atomic = netconsole_write_ext,\ndrivers/net/netconsole.c-2680-\t.device_lock = netconsole_device_lock,\n--\ndrivers/net/netconsole.c=2684=static struct console netconsole = {\n--\ndrivers/net/netconsole.c-2686-\t.flags = CON_ENABLED | CON_NBCON | CON_NBCON_ATOMIC_UNSAFE,\ndrivers/net/netconsole.c:2687:\t.write_thread = netconsole_write_basic,\ndrivers/net/netconsole.c:2688:\t.write_atomic = netconsole_write_basic,\ndrivers/net/netconsole.c-2689-\t.device_lock = netconsole_device_lock,\n"
} |
| 35/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 19476 output: 34 thoughts: 305 Thoughts: **Analyzing the Netconsole Code Path** Okay, so I'm tracing the execution path here for this netconsole functionality. The initial entry points are `netconsole_write_ext` and `netconsole_write_basic`, but they both funnel down to `netconsole_write`. That then calls `send_msg_udp`, which in turn calls `send_udp` and finally, `netpoll_send_udp`. This `netpoll_send_udp` function is the one the patch is modifying. Therefore, that's where I need to focus my attention. It seems like a good focus symbol. Let me just quickly verify if `netpoll_send_udp` is an inline function. Ah, no, it's defined as `static int netpoll_send_udp(struct netconsole_target *nt, const char *msg, int len)`, so it's not inlined, which simplifies things a bit. Therefore, my core focus symbols for further investigation are: `local_ip_store`, `remote_ip_store`, `enabled_store`, `netcons_netpoll_setup`, `netconsole_parser_cmdline` and especially, `netpoll_send_udp`. Now, I'll need to remember the relevant configurations: `NETCONSOLE`, `NETCONSOLE_DYNAMIC`, `CONFIGFS_FS` and `IPV6`. I should probably confirm in which file `netpoll_send_udp` is located - is it in `drivers/net/netconsole.c` or in `net/core/netpoll.c`? Wait a minute, the patch itself is modifying `netpoll_send_udp` within `drivers/net/netconsole.c`. Right, I should double-check the patch now. |
| 36/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "netpoll_send_udp",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=2145=static void push_ipv6(struct netconsole_target *nt, struct sk_buff *skb,\n--\ndrivers/net/netconsole.c-2168-\ndrivers/net/netconsole.c:2169:static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\ndrivers/net/netconsole.c-2170-\t\t\t int len)\n--\ndrivers/net/netconsole.c-2206-/**\ndrivers/net/netconsole.c:2207: * send_udp - Wrapper for netpoll_send_udp that counts errors\ndrivers/net/netconsole.c-2208- * @nt: target to send message to\n--\ndrivers/net/netconsole.c-2211- *\ndrivers/net/netconsole.c:2212: * Calls netpoll_send_udp and classifies the return value. If an error\ndrivers/net/netconsole.c-2213- * occurred it increments statistics in nt-\u003estats accordingly.\ndrivers/net/netconsole.c:2214: * Only calls netpoll_send_udp if CONFIG_NETCONSOLE_DYNAMIC is disabled.\ndrivers/net/netconsole.c-2215- */\ndrivers/net/netconsole.c=2216=static void send_udp(struct netconsole_target *nt, const char *msg, int len)\ndrivers/net/netconsole.c-2217-{\ndrivers/net/netconsole.c:2218:\tint result = netpoll_send_udp(nt, msg, len);\ndrivers/net/netconsole.c-2219-\n"
} |
| 37/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 20614 output: 36 thoughts: 52 Thoughts: Okay, here's my take on those thoughts, framed as my own: **Analyzing Kernel Network Console Changes** Alright, so the clue is pointing me directly to `drivers/net/netconsole.c`. That's where I need to start digging into the network console implementation. I figured it would be somewhere in the network code, but this confirms the specific file. Wait a second... the patch isn't *just* touching `netconsole.c`. It's also modifying `netpoll_parse_ip_addr`. That's important. I need to be careful not to miss any indirect dependencies or side effects related to IP address parsing within this context. I'll add `netpoll_parse_ip_addr` to my list of focus symbols. It's a key part of the puzzle. I can't afford to overlook that function. |
| 38/2 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "netpoll_parse_ip_addr",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=712=static void netconsole_print_banner(struct netconsole_target *nt)\n--\ndrivers/net/netconsole.c-737- */\ndrivers/net/netconsole.c:738:static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)\ndrivers/net/netconsole.c-739-{\n--\ndrivers/net/netconsole.c=1223=static ssize_t local_ip_store(struct config_item *item, const char *buf,\n--\ndrivers/net/netconsole.c-1235-\ndrivers/net/netconsole.c:1236:\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003elocal_ip) \u003c 0)\ndrivers/net/netconsole.c-1237-\t\tgoto out_unlock;\n--\ndrivers/net/netconsole.c=1245=static ssize_t remote_ip_store(struct config_item *item, const char *buf,\n--\ndrivers/net/netconsole.c-1257-\ndrivers/net/netconsole.c:1258:\tif (netpoll_parse_ip_addr(buf, \u0026nt-\u003eremote_ip) \u003c 0)\ndrivers/net/netconsole.c-1259-\t\tgoto out_unlock;\n--\ndrivers/net/netconsole.c=2513=static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\n--\ndrivers/net/netconsole.c-2534-\t\t*delim = 0;\ndrivers/net/netconsole.c:2535:\t\tif (netpoll_parse_ip_addr(cur, \u0026nt-\u003elocal_ip) \u003c 0)\ndrivers/net/netconsole.c-2536-\t\t\tgoto parse_failed;\n--\ndrivers/net/netconsole.c-2577-\t*delim = 0;\ndrivers/net/netconsole.c:2578:\tif (netpoll_parse_ip_addr(cur, \u0026nt-\u003eremote_ip) \u003c 0)\ndrivers/net/netconsole.c-2579-\t\tgoto parse_failed;\n"
} |
| 39/2 | 2026/08/10 19:40 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 21439 output: 234 thoughts: 327 Thoughts: **Fuzzing Target Prioritization: Analyzing a Kernel Patch** Okay, so I've been looking at this patch and, right off the bat, `netpoll_parse_ip_addr` jumps out at me. It's static, which is usually a sign that it’s isolated, but it's being called from *multiple* locations. That makes it a solid focus symbol for fuzzing. Let's break down the changes. The patch is refining how `netconsole` manages IP address families. Instead of just a single `ipv6` flag, it's now tracking the address family (AF_INET, AF_INET6, or AF_UNSPEC) separately for local and remote IPs. This improves IP address validation and handling which is always a good thing to see in network code. The changes are within reachable core kernel logic, specifically the `netconsole` subsystem, which is good. We can trigger this through `configfs` or kernel command-line parameters, increasing the odds of actually exercising the code. Definitely worth fuzzing, based on this. Now, let's nail down the key symbols I need to target: * `local_ip_store` * `remote_ip_store` * `enabled_store` * `netcons_netpoll_setup` * `netconsole_parser_cmdline` * `netpoll_send_udp` * And of course, that crucial `netpoll_parse_ip_addr` We also need to make sure the right kernel configuration options are set for this. We're looking at: * `NETCONSOLE` - obviously, we want that. * `NETCONSOLE_DYNAMIC` - We need to be careful with this one. * `CONFIGFS_FS` - This one is important to cover. * `IPV6` - We need to ensure we cover that too, since we're handling IP address families. Okay, a quick check on the dependencies. `NETCONSOLE_DYNAMIC` depends on `SYSFS`, which is almost always enabled, but let's make sure. Confirmed. We also need to enable `CONFIGFS_FS`, since it's tristate. And `IPV6` should be enabled, since it's a boolean. Alright, I think I have everything. Time to `set-results`. |
| 40/2 | 2026/08/10 19:40 | tool | set-results |
0mArgs:{
"EnableConfigs": [
"NETCONSOLE",
"NETCONSOLE_DYNAMIC",
"CONFIGFS_FS",
"IPV6"
],
"FocusSymbols": [
"local_ip_store",
"remote_ip_store",
"enabled_store",
"netcons_netpoll_setup",
"netconsole_parser_cmdline",
"netpoll_send_udp",
"netpoll_parse_ip_addr"
],
"Reasoning": "The patch modifies the netconsole driver to track the IP address family (AF_INET, AF_INET6, AF_UNSPEC) independently for local and remote IP addresses, replacing a single `ipv6` boolean flag. This changes how IP addresses are parsed, validated, and used during netconsole setup and message transmission. The modified code is reachable via the netconsole configfs interface (which allows dynamic reconfiguration of targets) and during module initialization via kernel command line parameters. Since this affects core kernel logging functionality and is reachable from userspace via configfs, it is worth fuzzing.",
"WorthFuzzing": true
}Results: {
"EnableConfigs": [
"NETCONSOLE",
"NETCONSOLE_DYNAMIC",
"CONFIGFS_FS",
"IPV6"
],
"FocusSymbols": [
"local_ip_store",
"remote_ip_store",
"enabled_store",
"netcons_netpoll_setup",
"netconsole_parser_cmdline",
"netpoll_send_udp",
"netpoll_parse_ip_addr"
],
"Reasoning": "The patch modifies the netconsole driver to track the IP address family (AF_INET, AF_INET6, AF_UNSPEC) independently for local and remote IP addresses, replacing a single `ipv6` boolean flag. This changes how IP addresses are parsed, validated, and used during netconsole setup and message transmission. The modified code is reachable via the netconsole configfs interface (which allows dynamic reconfiguration of targets) and during module initialization via kernel command line parameters. Since this affects core kernel logging functionality and is reachable from userspace via configfs, it is worth fuzzing.",
"WorthFuzzing": true
} |
| 41/1 | 2026/08/10 19:40 | action | If |
1mArgs:{
"WorthFuzzing": true
}Results: null |
| 42/2 | 2026/08/10 19:40 | agent | kmsan-evaluator |
1mModel:best-expensive Args: null Results: {
"KMSANReasoning": "The patch refactors how IP addresses are stored and parsed in the netconsole driver by replacing a `union inet_addr` and a boolean `ipv6` flag with a new `struct inet_addr` that explicitly tracks the address family (`AF_UNSPEC`, `AF_INET`, or `AF_INET6`). The `struct netconsole_target` containing these addresses is allocated using `kzalloc_obj` (which zero-initializes the memory), ensuring that the new `family` field defaults to `AF_UNSPEC` and the IP addresses are zeroed. The IP addresses are only exposed to userspace via configfs `show` functions, which format them as strings using `sysfs_emit`, preventing any potential leakage of padding bytes. When constructing network packets, only the exact IPv4 (4 bytes) or IPv6 (16 bytes) address fields are copied into the IP headers, again avoiding any padding leaks. There are no new allocations of uninitialized memory, no structures copied directly to userspace, and no control flow changes that could expose uninitialized memory. Standard KASAN and other bug detectors are sufficient to catch any potential memory corruption or out-of-bounds bugs. Therefore, a dedicated KMSAN fuzzing session is not required.",
"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: For your convenience, here is the diff of the changes:
commit 0f61305e16e2fad4bfae15c06b502c2c2006e9f9
Author: syz-cluster <triage@syzkaller.com>
Date: Mon Aug 10 19:38:21 2026 +0000
syz-cluster: applied patch under review
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 03913302328cc..810ded6e48f32 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -151,6 +151,15 @@ enum target_state {
STATE_DEACTIVATED,
};
+struct inet_addr {
+ /* Address family: AF_UNSPEC when unset, else AF_INET or AF_INET6 */
+ u8 family;
+ union {
+ __be32 ip;
+ struct in6_addr in6;
+ };
+};
+
/**
* struct netconsole_target - Represents a configured netconsole target.
* @list: Links this target into the target_list.
@@ -181,7 +190,6 @@ enum target_state {
* local_mac (read-only)
* @local_ip: Source IP address of the target (read-write).
* @remote_ip: Destination IP address of the target (read-write).
- * @ipv6: Whether the target addresses are IPv6 (read-write).
* @local_port: Source UDP port of the target (read-write).
* @remote_port: Destination UDP port of the target (read-write).
* @remote_mac: Destination ethernet address of the target (read-write).
@@ -212,8 +220,7 @@ struct netconsole_target {
bool extended;
bool release;
struct netpoll np;
- union inet_addr local_ip, remote_ip;
- bool ipv6;
+ struct inet_addr local_ip, remote_ip;
u16 local_port, remote_port;
u8 remote_mac[ETH_ALEN];
/* protected by target_list_lock; +1 gives scnprintf() room for its
@@ -415,6 +422,7 @@ static int netcons_take_ipv6(struct netconsole_target *nt,
continue;
/* Got the IP, let's return */
nt->local_ip.in6 = ifp->addr;
+ nt->local_ip.family = AF_INET6;
err = 0;
break;
}
@@ -456,28 +464,12 @@ static int netcons_take_ipv4(struct netconsole_target *nt,
}
nt->local_ip.ip = ifa->ifa_local;
+ nt->local_ip.family = AF_INET;
np_info(np, "local IP %pI4\n", &nt->local_ip.ip);
return 0;
}
-/*
- * Test whether the caller left nt->local_ip unset, so that
- * netcons_netpoll_setup() should auto-populate it from the egress device.
- *
- * nt->local_ip is a union of __be32 (IPv4) and struct in6_addr (IPv6),
- * so an IPv6 address whose first 4 bytes are zero (e.g. ::1, ::2,
- * IPv4-mapped ::ffff:a.b.c.d) must not be tested via the IPv4 arm —
- * doing so would misclassify a caller-supplied address as unset and
- * silently overwrite it with whatever address the device exposes.
- */
-static bool netcons_local_ip_unset(const struct netconsole_target *nt)
-{
- if (nt->ipv6)
- return ipv6_addr_any(&nt->local_ip.in6);
- return !nt->local_ip.ip;
-}
-
static int netcons_netpoll_setup(struct netconsole_target *nt)
{
struct net *net = current->nsproxy->net_ns;
@@ -487,6 +479,17 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)
bool ip_overwritten = false;
int err;
+ if (nt->remote_ip.family == AF_UNSPEC) {
+ np_err(np, "remote IP address not configured, aborting\n");
+ return -EDESTADDRREQ;
+ }
+
+ if (nt->local_ip.family != AF_UNSPEC &&
+ nt->local_ip.family != nt->remote_ip.family) {
+ np_err(np, "local and remote IP address families differ, aborting\n");
+ return -EINVAL;
+ }
+
rtnl_lock();
if (np->dev_name[0])
ndev = __dev_get_by_name(net, np->dev_name);
@@ -523,16 +526,13 @@ static int netcons_netpoll_setup(struct netconsole_target *nt)
rtnl_lock();
}
- if (netcons_local_ip_unset(nt)) {
- if (!nt->ipv6) {
- err = netcons_take_ipv4(nt, ndev);
- if (err)
- goto put;
- } else {
+ if (nt->local_ip.family == AF_UNSPEC) {
+ if (nt->remote_ip.family == AF_INET6)
err = netcons_take_ipv6(nt, ndev);
- if (err)
- goto put;
- }
+ else
+ err = netcons_take_ipv4(nt, ndev);
+ if (err)
+ goto put;
ip_overwritten = true;
}
@@ -714,24 +714,28 @@ static void netconsole_print_banner(struct netconsole_target *nt)
struct netpoll *np = &nt->np;
np_info(np, "local port %d\n", nt->local_port);
- if (nt->ipv6)
+ if (nt->local_ip.family == AF_UNSPEC)
+ np_info(np, "local IP unset\n");
+ else if (nt->local_ip.family == AF_INET6)
np_info(np, "local IPv6 address %pI6c\n", &nt->local_ip.in6);
else
np_info(np, "local IPv4 address %pI4\n", &nt->local_ip.ip);
np_info(np, "interface name '%s'\n", np->dev_name);
np_info(np, "local ethernet address '%pM'\n", np->dev_mac);
np_info(np, "remote port %d\n", nt->remote_port);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_UNSPEC)
+ np_info(np, "remote IP unset\n");
+ else if (nt->remote_ip.family == AF_INET6)
np_info(np, "remote IPv6 address %pI6c\n", &nt->remote_ip.in6);
else
np_info(np, "remote IPv4 address %pI4\n", &nt->remote_ip.ip);
np_info(np, "remote ethernet address %pM\n", nt->remote_mac);
}
-/* Parse the string and populate the `inet_addr` union. Return 0 if IPv4 is
- * populated, 1 if IPv6 is populated, and -1 upon failure.
+/* Parse the string and populate the `inet_addr` struct. Return 0 on success
+ * and -1 upon failure.
*/
-static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)
+static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)
{
const char *end = NULL;
int len;
@@ -743,14 +747,18 @@ static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)
if (str[len - 1] == '\n')
len -= 1;
- if (in4_pton(str, len, (void *)addr, -1, &end) > 0 &&
- (!end || *end == 0 || *end == '\n'))
+ if (in4_pton(str, len, (void *)&addr->ip, -1, &end) > 0 &&
+ (!end || *end == 0 || *end == '\n')) {
+ addr->family = AF_INET;
return 0;
+ }
if (IS_ENABLED(CONFIG_IPV6) &&
- in6_pton(str, len, (void *)addr, -1, &end) > 0 &&
- (!end || *end == 0 || *end == '\n'))
- return 1;
+ in6_pton(str, len, (void *)&addr->in6, -1, &end) > 0 &&
+ (!end || *end == 0 || *end == '\n')) {
+ addr->family = AF_INET6;
+ return 0;
+ }
return -1;
}
@@ -855,20 +863,24 @@ static ssize_t local_ip_show(struct config_item *item, char *buf)
{
struct netconsole_target *nt = to_target(item);
- if (nt->ipv6)
+ if (nt->local_ip.family == AF_UNSPEC)
+ return sysfs_emit(buf, "\n");
+ if (nt->local_ip.family == AF_INET6)
return sysfs_emit(buf, "%pI6c\n", &nt->local_ip.in6);
else
- return sysfs_emit(buf, "%pI4\n", &nt->local_ip);
+ return sysfs_emit(buf, "%pI4\n", &nt->local_ip.ip);
}
static ssize_t remote_ip_show(struct config_item *item, char *buf)
{
struct netconsole_target *nt = to_target(item);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_UNSPEC)
+ return sysfs_emit(buf, "\n");
+ if (nt->remote_ip.family == AF_INET6)
return sysfs_emit(buf, "%pI6c\n", &nt->remote_ip.in6);
else
- return sysfs_emit(buf, "%pI4\n", &nt->remote_ip);
+ return sysfs_emit(buf, "%pI4\n", &nt->remote_ip.ip);
}
static ssize_t local_mac_show(struct config_item *item, char *buf)
@@ -1213,7 +1225,6 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,
{
struct netconsole_target *nt = to_target(item);
ssize_t ret = -EINVAL;
- int ipv6;
dynamic_netconsole_mutex_lock();
if (nt->state == STATE_ENABLED) {
@@ -1222,10 +1233,8 @@ static ssize_t local_ip_store(struct config_item *item, const char *buf,
goto out_unlock;
}
- ipv6 = netpoll_parse_ip_addr(buf, &nt->local_ip);
- if (ipv6 == -1)
+ if (netpoll_parse_ip_addr(buf, &nt->local_ip) < 0)
goto out_unlock;
- nt->ipv6 = !!ipv6;
ret = count;
out_unlock:
@@ -1238,7 +1247,6 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,
{
struct netconsole_target *nt = to_target(item);
ssize_t ret = -EINVAL;
- int ipv6;
dynamic_netconsole_mutex_lock();
if (nt->state == STATE_ENABLED) {
@@ -1247,10 +1255,8 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,
goto out_unlock;
}
- ipv6 = netpoll_parse_ip_addr(buf, &nt->remote_ip);
- if (ipv6 == -1)
+ if (netpoll_parse_ip_addr(buf, &nt->remote_ip) < 0)
goto out_unlock;
- nt->ipv6 = !!ipv6;
ret = count;
out_unlock:
@@ -2061,7 +2067,7 @@ static void netpoll_udp_checksum(struct netconsole_target *nt,
/* check needs to be set, since it will be consumed in csum_partial */
udph->check = 0;
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
udph->check = csum_ipv6_magic(&nt->local_ip.in6,
&nt->remote_ip.in6,
udp_len, IPPROTO_UDP,
@@ -2102,7 +2108,7 @@ static void push_eth(struct netconsole_target *nt, struct sk_buff *skb)
skb_reset_mac_header(skb);
ether_addr_copy(eth->h_source, np->dev->dev_addr);
ether_addr_copy(eth->h_dest, nt->remote_mac);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
eth->h_proto = htons(ETH_P_IPV6);
else
eth->h_proto = htons(ETH_P_IP);
@@ -2171,7 +2177,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,
WARN_ON_ONCE(!irqs_disabled());
udp_len = len + sizeof(struct udphdr);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
ip_len = udp_len + sizeof(struct ipv6hdr);
else
ip_len = udp_len + sizeof(struct iphdr);
@@ -2187,7 +2193,7 @@ static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,
skb_put(skb, len);
push_udp(nt, skb, len);
- if (nt->ipv6)
+ if (nt->remote_ip.family == AF_INET6)
push_ipv6(nt, skb, len);
else
push_ipv4(nt, skb, len);
@@ -2507,10 +2513,8 @@ __releases(&target_list_lock)
static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
{
struct netpoll *np = &nt->np;
- bool ipversion_set = false;
char *cur = opt;
char *delim;
- int ipv6;
if (*cur != '@') {
delim = strchr(cur, '@');
@@ -2524,16 +2528,12 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
cur++;
if (*cur != '/') {
- ipversion_set = true;
delim = strchr(cur, '/');
if (!delim)
goto parse_failed;
*delim = 0;
- ipv6 = netpoll_parse_ip_addr(cur, &nt->local_ip);
- if (ipv6 < 0)
+ if (netpoll_parse_ip_addr(cur, &nt->local_ip) < 0)
goto parse_failed;
- else
- nt->ipv6 = (bool)ipv6;
cur = delim;
}
cur++;
@@ -2575,13 +2575,11 @@ static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)
if (!delim)
goto parse_failed;
*delim = 0;
- ipv6 = netpoll_parse_ip_addr(cur, &nt->remote_ip);
- if (ipv6 < 0)
+ if (netpoll_parse_ip_addr(cur, &nt->remote_ip) < 0)
goto parse_failed;
- else if (ipversion_set && nt->ipv6 != (bool)ipv6)
+ if (nt->local_ip.family != AF_UNSPEC &&
+ nt->local_ip.family != nt->remote_ip.family)
goto parse_failed;
- else
- nt->ipv6 = (bool)ipv6;
cur = delim + 1;
if (*cur != 0) {
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 1c6b1eec5efd6..ec0821a5b02db 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -16,11 +16,6 @@
#include <linux/ip.h>
#include <linux/udp.h>
-union inet_addr {
- __be32 ip;
- struct in6_addr in6;
-};
-
struct netpoll {
struct net_device *dev;
netdevice_tracker dev_tracker;
|
| 43/3 | 2026/08/10 19:40 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 6426 output: 40 thoughts: 240 Thoughts: **Refactoring Netconsole for IPv6 Flexibility** Okay, so this patch is aimed at improving the IPv6 support within the netconsole driver. My initial impression is that it's a pretty targeted refactor, focusing on a more flexible way to handle IP addresses. It looks like the main thrust is to move away from the simple `ipv6` boolean flag and the `union inet_addr` – which feels a bit limiting – and into a more robust `struct inet_addr`. This new structure cleverly bundles the address family (`u8 family`) with the union containing the actual IP addresses (both IPv4 and IPv6). The implications are clear: the `ipv6` field within `struct netconsole_target` is being retired, and all the parsing and setup code are being updated to leverage the `family` field instead. That’s the right way to approach it. We're also seeing the addition of some crucial checks to validate that both the remote IP is defined and that both the local and remote IPs belong to the same address family. Makes sense – consistency is key, especially in network configurations. So, the `struct inet_addr` is directly embedded within the `struct netconsole_target` itself, as the `local_ip` and `remote_ip` members. Now, let's just make sure that these structs are being allocated properly. I’ll quickly check how `struct netconsole_target` is instantiated, specifically within the `alloc_param_target` and `make_netconsole_target` functions. Just want to confirm that there isn’t any obvious memory management issue. I'll need to run a `grep` for `alloc_param_target` and `make_netconsole_target` to confirm. It is possible they use `kzalloc`. |
| 44/3 | 2026/08/10 19:40 | tool | grepper |
0mArgs:{
"Expression": "alloc_param_target|make_netconsole_target",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=1716=static struct netconsole_target *find_cmdline_target(const char *name)\n--\ndrivers/net/netconsole.c-1736-\ndrivers/net/netconsole.c:1737:static struct config_group *make_netconsole_target(struct config_group *group,\ndrivers/net/netconsole.c-1738-\t\t\t\t\t\t const char *name)\n--\ndrivers/net/netconsole.c=1823=static const struct configfs_group_operations netconsole_subsys_group_ops = {\ndrivers/net/netconsole.c:1824:\t.make_group\t= make_netconsole_target,\ndrivers/net/netconsole.c-1825-\t.drop_item\t= drop_netconsole_target,\n--\ndrivers/net/netconsole.c=2513=static int netconsole_parser_cmdline(struct netconsole_target *nt, char *opt)\n--\ndrivers/net/netconsole.c-2600-/* Allocate new target (from boot/module param) and setup netpoll for it */\ndrivers/net/netconsole.c:2601:static struct netconsole_target *alloc_param_target(char *target_config,\ndrivers/net/netconsole.c-2602-\t\t\t\t\t\t int cmdline_count)\n--\ndrivers/net/netconsole.c=2693=static int __init init_netconsole(void)\n--\ndrivers/net/netconsole.c-2704-\t\twhile ((target_config = strsep(\u0026input, \";\"))) {\ndrivers/net/netconsole.c:2705:\t\t\tnt = alloc_param_target(target_config, count);\ndrivers/net/netconsole.c-2706-\t\t\tif (IS_ERR(nt)) {\n"
} |
| 45/3 | 2026/08/10 19:40 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7543 output: 35 thoughts: 22 Thoughts: Here's my summary, as though I'm thinking through this process: **Diving into Target Allocation and Netconsole Creation** Okay, time to get my hands dirty. I need to take a look at how these targets are being set up. First, I'm going to dig into the `alloc_param_target` implementation. I want to understand how it's deciding which resources to allocate and what parameters it's considering. I'm especially interested in any potential edge cases or optimization opportunities there, given my experience with similar resource allocation schemes. Then, I’ll immediately contrast that with a review of `make_netconsole_target`. I'm curious how its specific approach to network console targets differs. What are its dependencies? What error conditions might arise? I'll be looking for cleverness, and potential inefficiencies. Knowing both these implementations thoroughly will give me a solid base for understanding how the system handles targets in general. |
| 46/3 | 2026/08/10 19:41 | tool | grepper |
0mError:no matches Args: {
"Expression": "kzalloc.*netconsole_target",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"error": "no matches"
} |
| 47/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7811 output: 30 thoughts: 11 Thoughts: Okay, here's my summary, presented as a stream of thought: **Checking `nt` Allocation** Alright, let's dive into this. The first thing I'm thinking is, let's pinpoint exactly how `nt` is being allocated in the first place. I need to understand its lifecycle. Where and when is this variable brought into existence? Is it a statically allocated variable, perhaps a global or within a specific scope? Or, is it dynamically allocated, maybe through `malloc` or a similar memory management function? The allocation method will fundamentally influence everything that follows. I need to know this to track the implications. This information will inform so much about its lifetime, how it's used, and potential problems. Knowing the allocation type will give me important clues about its characteristics and constraints. |
| 48/3 | 2026/08/10 19:41 | tool | grepper |
0mArgs:{
"Expression": "kzalloc",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=657=static struct netconsole_target *alloc_and_init(void)\n--\ndrivers/net/netconsole.c-660-\ndrivers/net/netconsole.c:661:\tnt = kzalloc_obj(*nt);\ndrivers/net/netconsole.c-662-\tif (!nt)\n--\ndrivers/net/netconsole.c=1601=static struct config_item *userdatum_make_item(struct config_group *group,\n--\ndrivers/net/netconsole.c-1615-\ndrivers/net/netconsole.c:1616:\tudm = kzalloc_obj(*udm);\ndrivers/net/netconsole.c-1617-\tif (!udm)\n"
} |
| 49/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8221 output: 31 thoughts: 272 Thoughts: **Analyzing the Memory Allocation and Data Structures** Okay, so `kzalloc_obj` is being used here, which immediately tells me the `struct netconsole_target` is zero-initialized. Good, good. That means the `inet_addr` fields within will start at zero, specifically the `family` field will be zero, corresponding to `AF_UNSPEC`. This patch introduces a `struct inet_addr`, which is fairly straightforward: a `u8 family` and a union for IPv4 and IPv6 addresses. The union's size is, of course, 16 bytes. Considering the padding, the overall size of `inet_addr` looks like it'll be 20 bytes. Now, the key question arises: is this struct ever copied to userspace? That's what I need to figure out. Any potential exposure there is what I have to be most concerned about. Let's see. The patch modifies `local_ip_show` and `remote_ip_show`, both of which use `sysfs_emit`. Okay, that's not a direct copy; it's just formatting the IP address to a string. That's a relief. But that doesn't mean it's entirely safe. I should check other possible uses of `struct inet_addr`. Gotta be thorough here. |
| 50/3 | 2026/08/10 19:41 | tool | grepper |
0mArgs:{
"Expression": "inet_addr",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=148=enum target_state {\n--\ndrivers/net/netconsole.c-153-\ndrivers/net/netconsole.c:154:struct inet_addr {\ndrivers/net/netconsole.c-155-\t/* Address family: AF_UNSPEC when unset, else AF_INET or AF_INET6 */\n--\ndrivers/net/netconsole.c=204=struct netconsole_target {\n--\ndrivers/net/netconsole.c-222-\tstruct netpoll\t\tnp;\ndrivers/net/netconsole.c:223:\tstruct inet_addr\tlocal_ip, remote_ip;\ndrivers/net/netconsole.c-224-\tu16\t\t\tlocal_port, remote_port;\n--\ndrivers/net/netconsole.c=712=static void netconsole_print_banner(struct netconsole_target *nt)\n--\ndrivers/net/netconsole.c-734-\ndrivers/net/netconsole.c:735:/* Parse the string and populate the `inet_addr` struct. Return 0 on success\ndrivers/net/netconsole.c-736- * and -1 upon failure.\ndrivers/net/netconsole.c-737- */\ndrivers/net/netconsole.c:738:static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)\ndrivers/net/netconsole.c-739-{\n"
} |
| 51/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9178 output: 23 thoughts: 67 Thoughts: **Internal Structure Consolidation in Netconsole** Okay, so I'm looking at this new struct and it seems pretty straightforward – it's just being used *internally* within `netconsole.c`. It looks like it's a replacement for that old `union inet_addr` that was floating around in `include/linux/netpoll.h` but was eventually removed. My first thought is "that's convenient, cleans things up a bit". Now, the real question is, was that `union inet_addr` truly *only* utilized within `netconsole.c`? It's easy to assume, but I need to be absolutely certain. There's always the chance that something got missed during the refactoring or removal process, and that's the kind of thing that can quietly introduce bugs down the line. I'll need to double-check the codebase to be sure we didn't orphan any dependencies. Let's dig in and make sure. |
| 52/3 | 2026/08/10 19:41 | tool | grepper |
0mArgs:{
"Expression": "inet_addr",
"PathPrefix": ""
}Results: {
"Output": "\nFull output is too long, showing 500 out of 2097 lines.\nUse more precise expression if possible.\n\ndrivers/net/netconsole.c=148=enum target_state {\n--\ndrivers/net/netconsole.c-153-\ndrivers/net/netconsole.c:154:struct inet_addr {\ndrivers/net/netconsole.c-155-\t/* Address family: AF_UNSPEC when unset, else AF_INET or AF_INET6 */\n--\ndrivers/net/netconsole.c=204=struct netconsole_target {\n--\ndrivers/net/netconsole.c-222-\tstruct netpoll\t\tnp;\ndrivers/net/netconsole.c:223:\tstruct inet_addr\tlocal_ip, remote_ip;\ndrivers/net/netconsole.c-224-\tu16\t\t\tlocal_port, remote_port;\n--\ndrivers/net/netconsole.c=712=static void netconsole_print_banner(struct netconsole_target *nt)\n--\ndrivers/net/netconsole.c-734-\ndrivers/net/netconsole.c:735:/* Parse the string and populate the `inet_addr` struct. Return 0 on success\ndrivers/net/netconsole.c-736- * and -1 upon failure.\ndrivers/net/netconsole.c-737- */\ndrivers/net/netconsole.c:738:static int netpoll_parse_ip_addr(const char *str, struct inet_addr *addr)\ndrivers/net/netconsole.c-739-{\n--\ndrivers/net/wireguard/selftest/allowedips.c=82=struct horrible_allowedips_node {\ndrivers/net/wireguard/selftest/allowedips.c-83-\tstruct hlist_node table;\ndrivers/net/wireguard/selftest/allowedips.c:84:\tunion nf_inet_addr ip;\ndrivers/net/wireguard/selftest/allowedips.c:85:\tunion nf_inet_addr mask;\ndrivers/net/wireguard/selftest/allowedips.c-86-\tu8 ip_version;\n--\ndrivers/net/wireguard/selftest/allowedips.c=95=static __init void horrible_allowedips_free(struct horrible_allowedips *table)\n--\ndrivers/net/wireguard/selftest/allowedips.c-105-\ndrivers/net/wireguard/selftest/allowedips.c:106:static __init inline union nf_inet_addr horrible_cidr_to_mask(u8 cidr)\ndrivers/net/wireguard/selftest/allowedips.c-107-{\ndrivers/net/wireguard/selftest/allowedips.c:108:\tunion nf_inet_addr mask;\ndrivers/net/wireguard/selftest/allowedips.c-109-\n--\ndrivers/net/wireguard/selftest/allowedips.c-117-\ndrivers/net/wireguard/selftest/allowedips.c:118:static __init inline u8 horrible_mask_to_cidr(union nf_inet_addr subnet)\ndrivers/net/wireguard/selftest/allowedips.c-119-{\n--\ndrivers/net/wireguard/selftest/allowedips.c=153=horrible_insert_ordered(struct horrible_allowedips *table, struct horrible_allowedips_node *node)\n--\ndrivers/net/wireguard/selftest/allowedips.c-159-\t\tif (other-\u003eip_version == node-\u003eip_version \u0026\u0026\ndrivers/net/wireguard/selftest/allowedips.c:160:\t\t !memcmp(\u0026other-\u003emask, \u0026node-\u003emask, sizeof(union nf_inet_addr)) \u0026\u0026\ndrivers/net/wireguard/selftest/allowedips.c:161:\t\t !memcmp(\u0026other-\u003eip, \u0026node-\u003eip, sizeof(union nf_inet_addr))) {\ndrivers/net/wireguard/selftest/allowedips.c-162-\t\t\tother-\u003evalue = node-\u003evalue;\n--\ndrivers/nvme/target/rdma.c=2001=static void nvmet_rdma_disc_port_addr(struct nvmet_req *req,\n--\ndrivers/nvme/target/rdma.c-2006-\ndrivers/nvme/target/rdma.c:2007:\tif (inet_addr_is_any(\u0026cm_id-\u003eroute.addr.src_addr)) {\ndrivers/nvme/target/rdma.c-2008-\t\tstruct nvmet_rdma_rsp *rsp =\n--\ndrivers/nvme/target/tcp.c=2202=static void nvmet_tcp_disc_port_addr(struct nvmet_req *req,\n--\ndrivers/nvme/target/tcp.c-2206-\ndrivers/nvme/target/tcp.c:2207:\tif (inet_addr_is_any(\u0026port-\u003eaddr)) {\ndrivers/nvme/target/tcp.c-2208-\t\tstruct nvmet_tcp_cmd *cmd =\n--\ndrivers/target/iscsi/iscsi_target.c=3336=iscsit_build_sendtargets_response(struct iscsit_cmd *cmd,\n--\ndrivers/target/iscsi/iscsi_target.c-3438-\ndrivers/target/iscsi/iscsi_target.c:3439:\t\t\t\tif (inet_addr_is_any(\u0026np-\u003enp_sockaddr))\ndrivers/target/iscsi/iscsi_target.c-3440-\t\t\t\t\tsockaddr = \u0026conn-\u003elocal_sockaddr;\n--\nfs/smb/server/connection.c=30=static int proc_show_clients(struct seq_file *m, void *v)\n--\nfs/smb/server/connection.c-45-#if IS_ENABLED(CONFIG_IPV6)\nfs/smb/server/connection.c:46:\t\tif (!conn-\u003einet_addr)\nfs/smb/server/connection.c-47-\t\t\tseq_printf(m, \"%-20pI6c\", \u0026conn-\u003einet6_addr);\n--\nfs/smb/server/connection.c-49-#endif\nfs/smb/server/connection.c:50:\t\t\tseq_printf(m, \"%-20pI4\", \u0026conn-\u003einet_addr);\nfs/smb/server/connection.c-51-\t\tseq_printf(m, \" 0x%-10x %-10u %-12d %-10d %ptT\\n\",\n--\nfs/smb/server/connection.h=45=struct ksmbd_conn {\n--\nfs/smb/server/connection.h-54-\tunion {\nfs/smb/server/connection.h:55:\t\t__be32\t\t\tinet_addr;\nfs/smb/server/connection.h-56-#if IS_ENABLED(CONFIG_IPV6)\n--\nfs/smb/server/mgmt/user_session.c=81=static int show_proc_session(struct seq_file *m, void *v)\n--\nfs/smb/server/mgmt/user_session.c-96-#if IS_ENABLED(CONFIG_IPV6)\nfs/smb/server/mgmt/user_session.c:97:\t\tif (chan-\u003econn-\u003einet_addr)\nfs/smb/server/mgmt/user_session.c-98-\t\t\tseq_printf(m, \"%-20s\\t%pI4\\n\", \"client\",\nfs/smb/server/mgmt/user_session.c:99:\t\t\t\t\t\u0026chan-\u003econn-\u003einet_addr);\nfs/smb/server/mgmt/user_session.c-100-\t\telse\n--\nfs/smb/server/mgmt/user_session.c-104-\t\tseq_printf(m, \"%-20s\\t%pI4\\n\", \"client\",\nfs/smb/server/mgmt/user_session.c:105:\t\t\t\t\u0026chan-\u003econn-\u003einet_addr);\nfs/smb/server/mgmt/user_session.c-106-#endif\n--\nfs/smb/server/mgmt/user_session.c=200=static int show_proc_sessions(struct seq_file *m, void *v)\n--\nfs/smb/server/mgmt/user_session.c-217-#if IS_ENABLED(CONFIG_IPV6)\nfs/smb/server/mgmt/user_session.c:218:\t\t\tif (!chan-\u003econn-\u003einet_addr)\nfs/smb/server/mgmt/user_session.c-219-\t\t\t\tseq_printf(m, \" %-40pI6c\", \u0026chan-\u003econn-\u003einet6_addr);\n--\nfs/smb/server/mgmt/user_session.c-221-#endif\nfs/smb/server/mgmt/user_session.c:222:\t\t\t\tseq_printf(m, \" %-40pI4\", \u0026chan-\u003econn-\u003einet_addr);\nfs/smb/server/mgmt/user_session.c-223-\t\t\tseq_printf(m, \" %-15s %-10llu %-10s\\n\",\n--\nfs/smb/server/transport_tcp.c=59=static struct tcp_transport *alloc_transport(struct socket *client_sk)\n--\nfs/smb/server/transport_tcp.c-79-\t} else {\nfs/smb/server/transport_tcp.c:80:\t\tconn-\u003einet_addr = inet_sk(client_sk-\u003esk)-\u003einet_daddr;\nfs/smb/server/transport_tcp.c-81-\t\tconn-\u003einet_hash = ipv4_addr_hash(inet_sk(client_sk-\u003esk)-\u003einet_daddr);\n--\nfs/smb/server/transport_tcp.c-83-#else\nfs/smb/server/transport_tcp.c:84:\tconn-\u003einet_addr = inet_sk(client_sk-\u003esk)-\u003einet_daddr;\nfs/smb/server/transport_tcp.c-85-\tconn-\u003einet_hash = ipv4_addr_hash(inet_sk(client_sk-\u003esk)-\u003einet_daddr);\n--\nfs/smb/server/transport_tcp.c=177=static int ksmbd_tcp_new_connection(struct socket *client_sk)\n--\nfs/smb/server/transport_tcp.c-198-\t\t\t\tKSMBD_TRANS(t)-\u003econn, \"ksmbd:%pI4\",\nfs/smb/server/transport_tcp.c:199:\t\t\t\t\u0026KSMBD_TRANS(t)-\u003econn-\u003einet_addr);\nfs/smb/server/transport_tcp.c-200-#else\n--\nfs/smb/server/transport_tcp.c-202-\t\t\tKSMBD_TRANS(t)-\u003econn, \"ksmbd:%pI4\",\nfs/smb/server/transport_tcp.c:203:\t\t\t\u0026KSMBD_TRANS(t)-\u003econn-\u003einet_addr);\nfs/smb/server/transport_tcp.c-204-#endif\n--\nfs/smb/server/transport_tcp.c=219=static int ksmbd_kthread_fn(void *p)\n--\nfs/smb/server/transport_tcp.c-260-\t\t\t} else if (inet_sk(client_sk-\u003esk)-\u003einet_daddr ==\nfs/smb/server/transport_tcp.c:261:\t\t\t\t conn-\u003einet_addr)\nfs/smb/server/transport_tcp.c-262-\t\t\t\tmax_ip_conns++;\n--\nfs/smb/server/transport_tcp.c-264-\t\t\tif (inet_sk(client_sk-\u003esk)-\u003einet_daddr ==\nfs/smb/server/transport_tcp.c:265:\t\t\t conn-\u003einet_addr)\nfs/smb/server/transport_tcp.c-266-\t\t\t\tmax_ip_conns++;\n--\ninclude/linux/inet.h=56=extern int inet_pton_with_scope(struct net *net, unsigned short af,\ninclude/linux/inet.h-57-\t\tconst char *src, const char *port, struct sockaddr_storage *addr);\ninclude/linux/inet.h:58:bool inet_addr_is_any(struct sockaddr_storage *addr);\ninclude/linux/inet.h-59-\n--\ninclude/linux/inetdevice.h=181=static inline struct net_device *ip_dev_find(struct net *net, __be32 addr)\n--\ninclude/linux/inetdevice.h-185-\ninclude/linux/inetdevice.h:186:int inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b);\ninclude/linux/inetdevice.h-187-int devinet_ioctl(struct net *net, unsigned int cmd, struct ifreq *);\n--\ninclude/linux/netfilter.h=26=NF_DROP_REASON(struct sk_buff *skb, enum skb_drop_reason reason, u32 err)\n--\ninclude/linux/netfilter.h-34-\ninclude/linux/netfilter.h:35:static inline int nf_inet_addr_cmp(const union nf_inet_addr *a1,\ninclude/linux/netfilter.h:36:\t\t\t\t const union nf_inet_addr *a2)\ninclude/linux/netfilter.h-37-{\n--\ninclude/linux/netfilter.h-50-\ninclude/linux/netfilter.h:51:static inline void nf_inet_addr_mask(const union nf_inet_addr *a1,\ninclude/linux/netfilter.h:52:\t\t\t\t union nf_inet_addr *result,\ninclude/linux/netfilter.h:53:\t\t\t\t const union nf_inet_addr *mask)\ninclude/linux/netfilter.h-54-{\n--\ninclude/linux/netfilter/ipset/ip_set.h=333=extern int ip_set_get_ipaddr4(struct nlattr *nla, __be32 *ipaddr);\ninclude/linux/netfilter/ipset/ip_set.h:334:extern int ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr);\ninclude/linux/netfilter/ipset/ip_set.h-335-extern size_t ip_set_elem_len(struct ip_set *set, struct nlattr *tb[],\n--\ninclude/linux/netfilter/ipset/ip_set.h=522=static inline void\ninclude/linux/netfilter/ipset/ip_set.h:523:nf_inet_addr_mask_inplace(union nf_inet_addr *a1,\ninclude/linux/netfilter/ipset/ip_set.h:524:\t\t\t const union nf_inet_addr *mask)\ninclude/linux/netfilter/ipset/ip_set.h-525-{\n--\ninclude/linux/netfilter/ipset/pfxlen.h-9-/* Prefixlen maps, by Jan Engelhardt */\ninclude/linux/netfilter/ipset/pfxlen.h:10:extern const union nf_inet_addr ip_set_netmask_map[];\ninclude/linux/netfilter/ipset/pfxlen.h:11:extern const union nf_inet_addr ip_set_hostmask_map[];\ninclude/linux/netfilter/ipset/pfxlen.h-12-\n--\ninclude/linux/netfilter/ipset/pfxlen.h=45=static inline void\ninclude/linux/netfilter/ipset/pfxlen.h:46:ip6_netmask(union nf_inet_addr *ip, u8 prefix)\ninclude/linux/netfilter/ipset/pfxlen.h-47-{\n--\ninclude/linux/netfilter/nf_conntrack_h323.h=32=int get_h225_addr(struct nf_conn *ct, unsigned char *data,\ninclude/linux/netfilter/nf_conntrack_h323.h:33:\t\t TransportAddress *taddr, union nf_inet_addr *addr,\ninclude/linux/netfilter/nf_conntrack_h323.h-34-\t\t __be16 *port);\n--\ninclude/linux/netfilter/nf_conntrack_h323.h=36=struct nfct_h323_nat_hooks {\n--\ninclude/linux/netfilter/nf_conntrack_h323.h-39-\t\t\t H245_TransportAddress *taddr,\ninclude/linux/netfilter/nf_conntrack_h323.h:40:\t\t\t union nf_inet_addr *addr, __be16 port);\ninclude/linux/netfilter/nf_conntrack_h323.h-41-\tint (*set_h225_addr)(struct sk_buff *skb, unsigned int protoff,\n--\ninclude/linux/netfilter/nf_conntrack_h323.h-43-\t\t\t TransportAddress *taddr,\ninclude/linux/netfilter/nf_conntrack_h323.h:44:\t\t\t union nf_inet_addr *addr, __be16 port);\ninclude/linux/netfilter/nf_conntrack_h323.h-45-\tint (*set_sig_addr)(struct sk_buff *skb,\n--\ninclude/linux/netfilter/nf_conntrack_sip.h=110=struct nf_nat_sip_hooks {\n--\ninclude/linux/netfilter/nf_conntrack_sip.h-136-\t\t\t\t enum sdp_header_types term,\ninclude/linux/netfilter/nf_conntrack_sip.h:137:\t\t\t\t const union nf_inet_addr *addr);\ninclude/linux/netfilter/nf_conntrack_sip.h-138-\n--\ninclude/linux/netfilter/nf_conntrack_sip.h-153-\t\t\t\t unsigned int sdpoff,\ninclude/linux/netfilter/nf_conntrack_sip.h:154:\t\t\t\t const union nf_inet_addr *addr);\ninclude/linux/netfilter/nf_conntrack_sip.h-155-\n--\ninclude/linux/netfilter/nf_conntrack_sip.h-164-\t\t\t\t unsigned int medialen,\ninclude/linux/netfilter/nf_conntrack_sip.h:165:\t\t\t\t union nf_inet_addr *rtp_addr);\ninclude/linux/netfilter/nf_conntrack_sip.h-166-};\n--\ninclude/linux/netfilter/nf_conntrack_sip.h=169=int ct_sip_parse_request(const struct nf_conn *ct, const char *dptr,\ninclude/linux/netfilter/nf_conntrack_sip.h-170-\t\t\t unsigned int datalen, unsigned int *matchoff,\ninclude/linux/netfilter/nf_conntrack_sip.h:171:\t\t\t unsigned int *matchlen, union nf_inet_addr *addr,\ninclude/linux/netfilter/nf_conntrack_sip.h-172-\t\t\t __be16 *port);\n--\ninclude/linux/netfilter/nf_conntrack_sip.h=177=int ct_sip_parse_header_uri(const struct nf_conn *ct, const char *dptr,\n--\ninclude/linux/netfilter/nf_conntrack_sip.h-180-\t\t\t unsigned int *matchoff, unsigned int *matchlen,\ninclude/linux/netfilter/nf_conntrack_sip.h:181:\t\t\t union nf_inet_addr *addr, __be16 *port);\ninclude/linux/netfilter/nf_conntrack_sip.h-182-int ct_sip_parse_address_param(const struct nf_conn *ct, const char *dptr,\n--\ninclude/linux/netfilter/nf_conntrack_sip.h-184-\t\t\t const char *name, unsigned int *matchoff,\ninclude/linux/netfilter/nf_conntrack_sip.h:185:\t\t\t unsigned int *matchlen, union nf_inet_addr *addr,\ninclude/linux/netfilter/nf_conntrack_sip.h-186-\t\t\t bool delim);\n--\ninclude/net/inet_sock.h=433=static inline bool inet_can_nonlocal_bind(struct net *net,\n--\ninclude/net/inet_sock.h-440-\ninclude/net/inet_sock.h:441:static inline bool inet_addr_valid_or_nonlocal(struct net *net,\ninclude/net/inet_sock.h-442-\t\t\t\t\t struct inet_sock *inet,\n--\ninclude/net/ip_vs.h-24-#include \u003cnet/checksum.h\u003e\ninclude/net/ip_vs.h:25:#include \u003clinux/netfilter.h\u003e\t\t/* for union nf_inet_addr */\ninclude/net/ip_vs.h-26-#include \u003clinux/ip.h\u003e\n--\ninclude/net/ip_vs.h=70=struct ip_vs_iphdr {\n--\ninclude/net/ip_vs.h-77-\t__s32 flags;\ninclude/net/ip_vs.h:78:\tunion nf_inet_addr saddr;\ninclude/net/ip_vs.h:79:\tunion nf_inet_addr daddr;\ninclude/net/ip_vs.h-80-};\n--\ninclude/net/ip_vs.h=168=ip_vs_iph_icmp(const struct ip_vs_iphdr *iph)\n--\ninclude/net/ip_vs.h-172-\ninclude/net/ip_vs.h:173:static inline void ip_vs_addr_copy(int af, union nf_inet_addr *dst,\ninclude/net/ip_vs.h:174:\t\t\t\t const union nf_inet_addr *src)\ninclude/net/ip_vs.h-175-{\n--\ninclude/net/ip_vs.h-183-\ninclude/net/ip_vs.h:184:static inline void ip_vs_addr_set(int af, union nf_inet_addr *dst,\ninclude/net/ip_vs.h:185:\t\t\t\t const union nf_inet_addr *src)\ninclude/net/ip_vs.h-186-{\n--\ninclude/net/ip_vs.h-198-\ninclude/net/ip_vs.h:199:static inline int ip_vs_addr_equal(int af, const union nf_inet_addr *a,\ninclude/net/ip_vs.h:200:\t\t\t\t const union nf_inet_addr *b)\ninclude/net/ip_vs.h-201-{\n--\ninclude/net/ip_vs.h=214=static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len,\ninclude/net/ip_vs.h:215:\t\t\t\t\t const union nf_inet_addr *addr,\ninclude/net/ip_vs.h-216-\t\t\t\t\t int *idx)\n--\ninclude/net/ip_vs.h=704=u32 ip_vs_rht_hash_linfo(struct ip_vs_rht *t, int af,\ninclude/net/ip_vs.h:705:\t\t\t const union nf_inet_addr *addr, u32 v1, u32 v2);\ninclude/net/ip_vs.h-706-\n--\ninclude/net/ip_vs.h=787=struct ip_vs_conn_param {\ninclude/net/ip_vs.h-788-\tstruct netns_ipvs\t\t*ipvs;\ninclude/net/ip_vs.h:789:\tconst union nf_inet_addr\t*caddr;\ninclude/net/ip_vs.h:790:\tconst union nf_inet_addr\t*vaddr;\ninclude/net/ip_vs.h-791-\t__be16\t\t\t\tcport;\n--\ninclude/net/ip_vs.h=809=struct ip_vs_conn {\n--\ninclude/net/ip_vs.h-834-\ninclude/net/ip_vs.h:835:\tunion nf_inet_addr caddr; /* client address */\ninclude/net/ip_vs.h:836:\tunion nf_inet_addr vaddr; /* virtual address */\ninclude/net/ip_vs.h-837-\t/* 96/128 */\ninclude/net/ip_vs.h-838-\ninclude/net/ip_vs.h:839:\tunion nf_inet_addr daddr; /* destination address */\ninclude/net/ip_vs.h-840-\t__u32\t\t\tfwmark;\t\t/* Fire wall mark from skb */\n--\ninclude/net/ip_vs.h=886=struct ip_vs_service_user_kern {\n--\ninclude/net/ip_vs.h-889-\tu16\t\t\tprotocol;\ninclude/net/ip_vs.h:890:\tunion nf_inet_addr\taddr;\t\t/* virtual ip address */\ninclude/net/ip_vs.h-891-\t__be16\t\t\tport;\n--\ninclude/net/ip_vs.h=903=struct ip_vs_dest_user_kern {\ninclude/net/ip_vs.h-904-\t/* destination server address */\ninclude/net/ip_vs.h:905:\tunion nf_inet_addr\taddr;\ninclude/net/ip_vs.h-906-\t__be16\t\t\tport;\n--\ninclude/net/ip_vs.h=929=struct ip_vs_service {\n--\ninclude/net/ip_vs.h-934-\ninclude/net/ip_vs.h:935:\tunion nf_inet_addr\taddr;\t /* IP address for virtual service */\ninclude/net/ip_vs.h-936-\t__u32 fwmark; /* firewall mark of the service */\n--\ninclude/net/ip_vs.h=961=struct ip_vs_dest_dst {\n--\ninclude/net/ip_vs.h-963-\tu32\t\t\tdst_cookie;\ninclude/net/ip_vs.h:964:\tunion nf_inet_addr\tdst_saddr;\ninclude/net/ip_vs.h-965-\tstruct rcu_head\t\trcu_head;\n--\ninclude/net/ip_vs.h=971=struct ip_vs_dest {\n--\ninclude/net/ip_vs.h-976-\t__be16\t\t\tport;\t\t/* port number of the server */\ninclude/net/ip_vs.h:977:\tunion nf_inet_addr\taddr;\t\t/* IP address of the server */\ninclude/net/ip_vs.h-978-\tvolatile unsigned int\tflags;\t\t/* dest status flags */\n--\ninclude/net/ip_vs.h-1004-\t__be16\t\t\tvport;\t\t/* virtual port number */\ninclude/net/ip_vs.h:1005:\tunion nf_inet_addr\tvaddr;\t\t/* virtual IP address */\ninclude/net/ip_vs.h-1006-\t__u32\t\t\tvfwmark;\t/* firewall mark of service */\n--\ninclude/net/ip_vs.h=1138=struct ipvs_sync_daemon_cfg {\ninclude/net/ip_vs.h:1139:\tunion nf_inet_addr\tmcast_group;\ninclude/net/ip_vs.h-1140-\tint\t\t\tsyncid;\n--\ninclude/net/ip_vs.h=1631=static inline void ip_vs_conn_fill_param(struct netns_ipvs *ipvs, int af, int protocol,\ninclude/net/ip_vs.h:1632:\t\t\t\t\t const union nf_inet_addr *caddr,\ninclude/net/ip_vs.h-1633-\t\t\t\t\t __be16 cport,\ninclude/net/ip_vs.h:1634:\t\t\t\t\t const union nf_inet_addr *vaddr,\ninclude/net/ip_vs.h-1635-\t\t\t\t\t __be16 vport,\n--\ninclude/net/ip_vs.h=1697=struct ip_vs_conn *ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,\ninclude/net/ip_vs.h:1698:\t\t\t\t const union nf_inet_addr *daddr,\ninclude/net/ip_vs.h-1699-\t\t\t\t __be16 dport, unsigned int flags,\n--\ninclude/net/ip_vs.h=1869=ip_vs_service_find(struct netns_ipvs *ipvs, int af, __u32 fwmark, __u16 protocol,\ninclude/net/ip_vs.h:1870:\t\t const union nf_inet_addr *vaddr, __be16 vport);\ninclude/net/ip_vs.h-1871-\ninclude/net/ip_vs.h=1872=bool ip_vs_has_real_service(struct netns_ipvs *ipvs, int af, __u16 protocol,\ninclude/net/ip_vs.h:1873:\t\t\t const union nf_inet_addr *daddr, __be16 dport);\ninclude/net/ip_vs.h-1874-\n--\ninclude/net/ip_vs.h=1876=ip_vs_find_real_service(struct netns_ipvs *ipvs, int af, __u16 protocol,\ninclude/net/ip_vs.h:1877:\t\t\tconst union nf_inet_addr *daddr, __be16 dport);\ninclude/net/ip_vs.h-1878-struct ip_vs_dest *ip_vs_find_tunnel(struct netns_ipvs *ipvs, int af,\ninclude/net/ip_vs.h:1879:\t\t\t\t const union nf_inet_addr *daddr,\ninclude/net/ip_vs.h-1880-\t\t\t\t __be16 tun_port);\n--\ninclude/net/ip_vs.h=1889=ip_vs_find_dest(struct netns_ipvs *ipvs, int svc_af, int dest_af,\ninclude/net/ip_vs.h:1890:\t\tconst union nf_inet_addr *daddr, __be16 dport,\ninclude/net/ip_vs.h:1891:\t\tconst union nf_inet_addr *vaddr, __be16 vport,\ninclude/net/ip_vs.h-1892-\t\t__u16 protocol, __u32 fwmark, __u32 flags);\n--\ninclude/net/netfilter/nf_conntrack_expect.h=18=struct nf_conntrack_expect {\n--\ninclude/net/netfilter/nf_conntrack_expect.h-64-#if IS_ENABLED(CONFIG_NF_NAT)\ninclude/net/netfilter/nf_conntrack_expect.h:65:\tunion nf_inet_addr saved_addr;\ninclude/net/netfilter/nf_conntrack_expect.h-66-\t/* This is the original per-proto part, used to map the\n--\ninclude/net/netfilter/nf_conntrack_expect.h=154=void nf_ct_expect_init(struct nf_conntrack_expect *, unsigned int, u_int8_t,\ninclude/net/netfilter/nf_conntrack_expect.h:155:\t\t const union nf_inet_addr *,\ninclude/net/netfilter/nf_conntrack_expect.h:156:\t\t const union nf_inet_addr *,\ninclude/net/netfilter/nf_conntrack_expect.h-157-\t\t u_int8_t, const __be16 *, const __be16 *);\n--\ninclude/net/netfilter/nf_conntrack_l4proto.h=79=int nf_conntrack_inet_error(struct nf_conn *tmpl, struct sk_buff *skb,\n--\ninclude/net/netfilter/nf_conntrack_l4proto.h-82-\t\t\t u8 l4proto,\ninclude/net/netfilter/nf_conntrack_l4proto.h:83:\t\t\t union nf_inet_addr *outer_daddr);\ninclude/net/netfilter/nf_conntrack_l4proto.h-84-\n--\ninclude/net/netfilter/nf_conntrack_tuple.h-25-\ninclude/net/netfilter/nf_conntrack_tuple.h:26:#define NF_CT_TUPLE_L3SIZE\tARRAY_SIZE(((union nf_inet_addr *)NULL)-\u003eall)\ninclude/net/netfilter/nf_conntrack_tuple.h-27-\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=29=struct nf_conntrack_man {\ninclude/net/netfilter/nf_conntrack_tuple.h:30:\tunion nf_inet_addr u3;\ninclude/net/netfilter/nf_conntrack_tuple.h-31-\tunion nf_conntrack_man_proto u;\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=37=struct nf_conntrack_tuple {\n--\ninclude/net/netfilter/nf_conntrack_tuple.h-41-\tstruct {\ninclude/net/netfilter/nf_conntrack_tuple.h:42:\t\tunion nf_inet_addr u3;\ninclude/net/netfilter/nf_conntrack_tuple.h-43-\t\tunion {\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=78=struct nf_conntrack_tuple_mask {\ninclude/net/netfilter/nf_conntrack_tuple.h-79-\tstruct {\ninclude/net/netfilter/nf_conntrack_tuple.h:80:\t\tunion nf_inet_addr u3;\ninclude/net/netfilter/nf_conntrack_tuple.h-81-\t\tunion nf_conntrack_man_proto u;\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=127=static inline bool __nf_ct_tuple_src_equal(const struct nf_conntrack_tuple *t1,\n--\ninclude/net/netfilter/nf_conntrack_tuple.h-129-{\ninclude/net/netfilter/nf_conntrack_tuple.h:130:\treturn (nf_inet_addr_cmp(\u0026t1-\u003esrc.u3, \u0026t2-\u003esrc.u3) \u0026\u0026\ninclude/net/netfilter/nf_conntrack_tuple.h-131-\t\tt1-\u003esrc.u.all == t2-\u003esrc.u.all \u0026\u0026\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=135=static inline bool __nf_ct_tuple_dst_equal(const struct nf_conntrack_tuple *t1,\n--\ninclude/net/netfilter/nf_conntrack_tuple.h-137-{\ninclude/net/netfilter/nf_conntrack_tuple.h:138:\treturn (nf_inet_addr_cmp(\u0026t1-\u003edst.u3, \u0026t2-\u003edst.u3) \u0026\u0026\ninclude/net/netfilter/nf_conntrack_tuple.h-139-\t\tt1-\u003edst.u.all == t2-\u003edst.u.all \u0026\u0026\n--\ninclude/net/netfilter/nf_conntrack_tuple.h=151=nf_ct_tuple_mask_equal(const struct nf_conntrack_tuple_mask *m1,\n--\ninclude/net/netfilter/nf_conntrack_tuple.h-153-{\ninclude/net/netfilter/nf_conntrack_tuple.h:154:\treturn (nf_inet_addr_cmp(\u0026m1-\u003esrc.u3, \u0026m2-\u003esrc.u3) \u0026\u0026\ninclude/net/netfilter/nf_conntrack_tuple.h-155-\t\tm1-\u003esrc.u.all == m2-\u003esrc.u.all);\n--\ninclude/net/netns/ipv4.h=55=struct netns_ipv4 {\n--\ninclude/net/netns/ipv4.h-299-\tsiphash_key_t\tip_id_key;\ninclude/net/netns/ipv4.h:300:\tstruct hlist_head\t*inet_addr_lst;\ninclude/net/netns/ipv4.h-301-\tstruct delayed_work\taddr_chk_work;\n--\ninclude/net/route.h=251=void ip_rt_send_redirect(struct sk_buff *skb);\ninclude/net/route.h-252-\ninclude/net/route.h:253:unsigned int inet_addr_type(struct net *net, __be32 addr);\ninclude/net/route.h:254:unsigned int inet_addr_type_table(struct net *net, __be32 addr, u32 tb_id);\ninclude/net/route.h-255-unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,\ninclude/net/route.h-256-\t\t\t\t__be32 addr);\ninclude/net/route.h:257:unsigned int inet_addr_type_dev_table(struct net *net,\ninclude/net/route.h-258-\t\t\t\t const struct net_device *dev,\n--\ninclude/uapi/linux/netfilter.h=58=enum {\n--\ninclude/uapi/linux/netfilter.h-71-\ninclude/uapi/linux/netfilter.h:72:union nf_inet_addr {\ninclude/uapi/linux/netfilter.h-73-\t__u32\t\tall[4];\n--\ninclude/uapi/linux/netfilter/nf_nat.h=38=struct nf_nat_range {\ninclude/uapi/linux/netfilter/nf_nat.h-39-\tunsigned int\t\t\tflags;\ninclude/uapi/linux/netfilter/nf_nat.h:40:\tunion nf_inet_addr\t\tmin_addr;\ninclude/uapi/linux/netfilter/nf_nat.h:41:\tunion nf_inet_addr\t\tmax_addr;\ninclude/uapi/linux/netfilter/nf_nat.h-42-\tunion nf_conntrack_man_proto\tmin_proto;\n--\ninclude/uapi/linux/netfilter/nf_nat.h=46=struct nf_nat_range2 {\ninclude/uapi/linux/netfilter/nf_nat.h-47-\tunsigned int\t\t\tflags;\ninclude/uapi/linux/netfilter/nf_nat.h:48:\tunion nf_inet_addr\t\tmin_addr;\ninclude/uapi/linux/netfilter/nf_nat.h:49:\tunion nf_inet_addr\t\tmax_addr;\ninclude/uapi/linux/netfilter/nf_nat.h-50-\tunion nf_conntrack_man_proto\tmin_proto;\n--\ninclude/uapi/linux/netfilter/xt_HMARK.h=40=struct xt_hmark_info {\ninclude/uapi/linux/netfilter/xt_HMARK.h:41:\tunion nf_inet_addr\tsrc_mask;\ninclude/uapi/linux/netfilter/xt_HMARK.h:42:\tunion nf_inet_addr\tdst_mask;\ninclude/uapi/linux/netfilter/xt_HMARK.h-43-\tunion hmark_ports\tport_mask;\n--\ninclude/uapi/linux/netfilter/xt_TEE.h=7=struct xt_tee_tginfo {\ninclude/uapi/linux/netfilter/xt_TEE.h:8:\tunion nf_inet_addr gw;\ninclude/uapi/linux/netfilter/xt_TEE.h-9-\tchar oif[16];\n--\ninclude/uapi/linux/netfilter/xt_TPROXY.h=18=struct xt_tproxy_target_info_v1 {\n--\ninclude/uapi/linux/netfilter/xt_TPROXY.h-20-\t__u32 mark_value;\ninclude/uapi/linux/netfilter/xt_TPROXY.h:21:\tunion nf_inet_addr laddr;\ninclude/uapi/linux/netfilter/xt_TPROXY.h-22-\t__be16 lport;\n--\ninclude/uapi/linux/netfilter/xt_connlimit.h=15=struct xt_connlimit_info {\ninclude/uapi/linux/netfilter/xt_connlimit.h-16-\tunion {\ninclude/uapi/linux/netfilter/xt_connlimit.h:17:\t\tunion nf_inet_addr mask;\ninclude/uapi/linux/netfilter/xt_connlimit.h-18-#ifndef __KERNEL__\n--\ninclude/uapi/linux/netfilter/xt_conntrack.h=38=struct xt_conntrack_mtinfo1 {\ninclude/uapi/linux/netfilter/xt_conntrack.h:39:\tunion nf_inet_addr origsrc_addr, origsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:40:\tunion nf_inet_addr origdst_addr, origdst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:41:\tunion nf_inet_addr replsrc_addr, replsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:42:\tunion nf_inet_addr repldst_addr, repldst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h-43-\t__u32 expires_min, expires_max;\n--\ninclude/uapi/linux/netfilter/xt_conntrack.h=51=struct xt_conntrack_mtinfo2 {\ninclude/uapi/linux/netfilter/xt_conntrack.h:52:\tunion nf_inet_addr origsrc_addr, origsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:53:\tunion nf_inet_addr origdst_addr, origdst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:54:\tunion nf_inet_addr replsrc_addr, replsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:55:\tunion nf_inet_addr repldst_addr, repldst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h-56-\t__u32 expires_min, expires_max;\n--\ninclude/uapi/linux/netfilter/xt_conntrack.h=64=struct xt_conntrack_mtinfo3 {\ninclude/uapi/linux/netfilter/xt_conntrack.h:65:\tunion nf_inet_addr origsrc_addr, origsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:66:\tunion nf_inet_addr origdst_addr, origdst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:67:\tunion nf_inet_addr replsrc_addr, replsrc_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h:68:\tunion nf_inet_addr repldst_addr, repldst_mask;\ninclude/uapi/linux/netfilter/xt_conntrack.h-69-\t__u32 expires_min, expires_max;\n--\ninclude/uapi/linux/netfilter/xt_iprange.h=15=struct xt_iprange_mtinfo {\ninclude/uapi/linux/netfilter/xt_iprange.h:16:\tunion nf_inet_addr src_min, src_max;\ninclude/uapi/linux/netfilter/xt_iprange.h:17:\tunion nf_inet_addr dst_min, dst_max;\ninclude/uapi/linux/netfilter/xt_iprange.h-18-\t__u8 flags;\n--\ninclude/uapi/linux/netfilter/xt_ipvs.h=20=struct xt_ipvs_mtinfo {\ninclude/uapi/linux/netfilter/xt_ipvs.h:21:\tunion nf_inet_addr\tvaddr, vmask;\ninclude/uapi/linux/netfilter/xt_ipvs.h-22-\t__be16\t\t\tvport;\n--\ninclude/uapi/linux/netfilter/xt_policy.h=40=struct xt_policy_elem {\n--\ninclude/uapi/linux/netfilter/xt_policy.h-43-\t\tstruct {\ninclude/uapi/linux/netfilter/xt_policy.h:44:\t\t\tunion nf_inet_addr saddr;\ninclude/uapi/linux/netfilter/xt_policy.h:45:\t\t\tunion nf_inet_addr smask;\ninclude/uapi/linux/netfilter/xt_policy.h:46:\t\t\tunion nf_inet_addr daddr;\ninclude/uapi/linux/netfilter/xt_policy.h:47:\t\t\tunion nf_inet_addr dmask;\ninclude/uapi/linux/netfilter/xt_policy.h-48-\t\t};\n--\ninclude/uapi/linux/netfilter/xt_recent.h=37=struct xt_recent_mtinfo_v1 {\n--\ninclude/uapi/linux/netfilter/xt_recent.h-43-\t__u8 side;\ninclude/uapi/linux/netfilter/xt_recent.h:44:\tunion nf_inet_addr mask;\ninclude/uapi/linux/netfilter/xt_recent.h-45-};\n--\ninclude/uapi/linux/netfilter_ipv6/ip6t_NPT.h=8=struct ip6t_npt_tginfo {\ninclude/uapi/linux/netfilter_ipv6/ip6t_NPT.h:9:\tunion nf_inet_addr\tsrc_pfx;\ninclude/uapi/linux/netfilter_ipv6/ip6t_NPT.h:10:\tunion nf_inet_addr\tdst_pfx;\ninclude/uapi/linux/netfilter_ipv6/ip6t_NPT.h-11-\t__u8\t\t\tsrc_pfx_len;\n--\nnet/core/utils.c=401=EXPORT_SYMBOL(inet_pton_with_scope);\nnet/core/utils.c-402-\nnet/core/utils.c:403:bool inet_addr_is_any(struct sockaddr_storage *addr)\n\n"
} |
| 53/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 21179 output: 32 thoughts: 3529 Thoughts: **Analysis of `netconsole` IP Address Handling** Okay, so this patch is refactoring how `netconsole` handles IP addresses. Previously, we were using a `union inet_addr` and a separate boolean `ipv6`. Now, we're using a `struct inet_addr` which includes a family field and the union. It looks like the `union inet_addr` definition has been moved from the header to the source file, which makes sense to encapsulate the implementation details. I see they've updated the configfs show functions, `local_ip_show` and `remote_ip_show`. They're now checking the `family` field of the `inet_addr` to determine the IP version and using `%pI4` or `%pI6c` in `sysfs_emit`. This seems safe; no uninitialized memory leaks are present since the output is formatted as a string. Now, let's consider `netpoll_send_udp`. This is where the IP addresses are used to construct the UDP packets. There are a few checks like `nt->remote_ip.family == AF_INET6` to select the right checksum or protocol. If `nt->remote_ip.family` is `AF_UNSPEC`, it falls back to IPv4. But `netcons_netpoll_setup` checks to make sure `remote_ip` has been configured with an address and family, and the remote family must match the local IP address family. If `remote_ip.family` is `AF_UNSPEC` when this function is called, the setup fails, so `netpoll_send_udp` won't be called. The parsing function, `netpoll_parse_ip_addr`, has also been updated to use the new `inet_addr` struct. It populates `addr->ip` or `addr->in6` and sets `addr->family`. If it fails, it returns -1, and it's up to the caller to handle the error. I checked that even if parsing fails, there's no way to leak uninitialized memory since the `inet_addr` is zero-allocated, and the family is properly initialized. Checking `netconsole_parser_cmdline` confirms that the structure is always fully initialized when used. The boot command line parser uses `kzalloc_obj`, so it's all good. The patch seems well-reasoned and secure. There's no risk of uninitialized memory being used or leaked here. The structures are zero-allocated, the data is not copied to userspace in binary form, and the IP address data sent over the network is fully initialized by the time it is used to construct packets. The family field is also verified with checks before using it. |
| 54/3 | 2026/08/10 19:41 | tool | grepper |
0mArgs:{
"Expression": "push_ipv4",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"Output": "drivers/net/netconsole.c=2102=static void push_eth(struct netconsole_target *nt, struct sk_buff *skb)\n--\ndrivers/net/netconsole.c-2116-\ndrivers/net/netconsole.c:2117:static void push_ipv4(struct netconsole_target *nt, struct sk_buff *skb,\ndrivers/net/netconsole.c-2118-\t\t int len)\n--\ndrivers/net/netconsole.c=2169=static int netpoll_send_udp(struct netconsole_target *nt, const char *msg,\n--\ndrivers/net/netconsole.c-2198-\telse\ndrivers/net/netconsole.c:2199:\t\tpush_ipv4(nt, skb, len);\ndrivers/net/netconsole.c-2200-\tpush_eth(nt, skb);\n"
} |
| 55/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25561 output: 34 thoughts: 12 Thoughts: Here's my attempt at summarizing the thought process, tailored for an expert audience: **Analyzing the `push_ipv4` Implementation** Alright, let's dive into this `push_ipv4` implementation. I need to make sure this is doing what I expect it to do, and that it's handling the edge cases correctly. My initial thought is to quickly review the core logic – data structures being used, the algorithms employed for pushing the IPv4 packets, potential memory considerations, and if there are any obvious bottlenecks. I want to look for potential race conditions, especially if this function is multithreaded. The code should be adhering to relevant RFCs. Also, I'll pay attention to any error handling; is it robust, and are errors being propagated and logged appropriately? I'll probably start by sketching out a few potential test scenarios, including valid packets, malformed packets, and those with various TTL values. Overall, I want to confirm the elegance of the logic and its adherence to best practices. |
| 56/3 | 2026/08/10 19:41 | tool | grepper |
0mError:no matches Args: {
"Expression": "push_ipv4.*\\{",
"PathPrefix": "drivers/net/netconsole.c"
}Results: {
"error": "no matches"
} |
| 57/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25833 output: 37 thoughts: 15 Thoughts: Okay, here's my interpretation of that thought process, assuming I'm an expert in this field and reflecting on it internally: **Breaking Down the `push_ipv4` Routine** Right, let's get down to brass tacks. "Read `push_ipv4` using read-file." Essentially, I'm thinking about digging into the code. This likely means I'm troubleshooting, or maybe reviewing some existing infrastructure. The function name, `push_ipv4`, immediately tells me it's related to pushing or configuring IPv4-related data. I need the actual code, though. `read-file` is the tool to use. I'm going to pull the source code to start the deep-dive. From there I'll start analyzing to see what the function does, how it works and where it is used. I'll need to remember to look at the other functions that call it as well! |
| 58/3 | 2026/08/10 19:41 | tool | read-file |
0mArgs:{
"File": "drivers/net/netconsole.c",
"FirstLine": 2117,
"LineCount": 30
}Results: {
"Contents": "2117:\tstatic void push_ipv4(struct netconsole_target *nt, struct sk_buff *skb,\n2118:\t\t\t int len)\n2119:\t{\n2120:\t\tstatic atomic_t ip_ident;\n2121:\t\tstruct iphdr *iph;\n2122:\t\tint ip_len;\n2123:\t\n2124:\t\tip_len = len + sizeof(struct udphdr) + sizeof(struct iphdr);\n2125:\t\n2126:\t\tskb_push(skb, sizeof(struct iphdr));\n2127:\t\tskb_reset_network_header(skb);\n2128:\t\tiph = ip_hdr(skb);\n2129:\t\n2130:\t\t/* iph-\u003eversion = 4; iph-\u003eihl = 5; */\n2131:\t\t*(unsigned char *)iph = 0x45;\n2132:\t\tiph-\u003etos = 0;\n2133:\t\tput_unaligned(htons(ip_len), \u0026iph-\u003etot_len);\n2134:\t\tiph-\u003eid = htons(atomic_inc_return(\u0026ip_ident));\n2135:\t\tiph-\u003efrag_off = 0;\n2136:\t\tiph-\u003ettl = 64;\n2137:\t\tiph-\u003eprotocol = IPPROTO_UDP;\n2138:\t\tiph-\u003echeck = 0;\n2139:\t\tput_unaligned(nt-\u003elocal_ip.ip, \u0026iph-\u003esaddr);\n2140:\t\tput_unaligned(nt-\u003eremote_ip.ip, \u0026iph-\u003edaddr);\n2141:\t\tiph-\u003echeck = ip_fast_csum((unsigned char *)iph, iph-\u003eihl);\n2142:\t\tskb-\u003eprotocol = htons(ETH_P_IP);\n2143:\t}\n2144:\t\n2145:\tstatic void push_ipv6(struct netconsole_target *nt, struct sk_buff *skb,\n2146:\t\t\t int len)\n"
} |
| 59/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 26608 output: 37 thoughts: 60 Thoughts: Okay, here's my interpretation of this code snippet, expressed as if it's my own thought process: **My Analysis of the IP Address Handling** Right, let's take a look at this. The code is clearly using `put_unaligned(nt->local_ip.ip, &iph->saddr);`. Hmm, it's pretty straightforward, isn't it? It's directly copying bytes from `nt->local_ip.ip` to the source address field (`iph->saddr`) of the IP header. The important part here is the note on "exactly 4 bytes." That means we're dealing with an IPv4 address. There's no fancy padding or anything extra being copied from the `struct inet_addr`, which is generally good practice to avoid surprises. That's a clean and efficient way to handle it. And the fact that the same principle appears in `push_ipv6` confirms my initial hypothesis. The code is likely just grabbing the bytes and chucking them into the IP header for both IPv4 and IPv6, assuming the correct structure. Makes sense. This suggests there might be some underlying assumption about the structure of the `inet_addr` or other structs if that is not the case. Need to double-check that part. |
| 60/3 | 2026/08/10 19:41 | tool | read-file |
0mArgs:{
"File": "drivers/net/netconsole.c",
"FirstLine": 2145,
"LineCount": 20
}Results: {
"Contents": "2145:\tstatic void push_ipv6(struct netconsole_target *nt, struct sk_buff *skb,\n2146:\t\t\t int len)\n2147:\t{\n2148:\t\tstruct ipv6hdr *ip6h;\n2149:\t\n2150:\t\tskb_push(skb, sizeof(struct ipv6hdr));\n2151:\t\tskb_reset_network_header(skb);\n2152:\t\tip6h = ipv6_hdr(skb);\n2153:\t\n2154:\t\t/* ip6h-\u003eversion = 6; ip6h-\u003epriority = 0; */\n2155:\t\t*(unsigned char *)ip6h = 0x60;\n2156:\t\tip6h-\u003eflow_lbl[0] = 0;\n2157:\t\tip6h-\u003eflow_lbl[1] = 0;\n2158:\t\tip6h-\u003eflow_lbl[2] = 0;\n2159:\t\n2160:\t\tip6h-\u003epayload_len = htons(sizeof(struct udphdr) + len);\n2161:\t\tip6h-\u003enexthdr = IPPROTO_UDP;\n2162:\t\tip6h-\u003ehop_limit = 32;\n2163:\t\tip6h-\u003esaddr = nt-\u003elocal_ip.in6;\n2164:\t\tip6h-\u003edaddr = nt-\u003eremote_ip.in6;\n"
} |
| 61/3 | 2026/08/10 19:41 | llm | kmsan-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 27358 output: 286 thoughts: 812 Thoughts: **KMSAN Assessment: No Need for Dedicated Fuzzing** Okay, let's break this down. My initial concern was, as always, around potential uninitialized memory usage or information leaks. We're dealing with network configuration, so that's a key area to scrutinize. First, I examined the core change: `ip6h->saddr = nt->local_ip.in6;`. This copies exactly a `struct in6_addr`, which is 16 bytes. There's *no* risk of padding bytes from a previous `struct inet_addr` being copied over, so that’s a non-issue. The patch itself is a refactoring, specifically addressing how IP addresses are represented in `netconsole_target`. It introduces a `family` field to explicitly track the address family (IPv4, IPv6, or unset) instead of the previous ambiguous boolean and zero-IP check. This actually *fixes* a bug where a seemingly valid IPv6 address could be misinterpreted as unset, simply because its initial bytes were zero, which would have been missed by the legacy method. I then thoroughly reviewed the code changes. The original `union inet_addr` is gone from `netpoll.h` and replaced by a *struct* with the same name which contains the `family` member, and an anonymous union of `__be32` and `struct in6_addr`. This is added in `netconsole.c`. All other changes simply reflect the use of this new struct and its `family` field. Crucially, there are *no* new memory allocations introduced. The `netconsole_target` is allocated with `kzalloc_obj`, which zero-initializes the entire structure. This means the `family` field defaults to `0` (AF_UNSPEC, which is correct), and the IP address fields are zeroed as well. If parsing the address fails, the target is not enabled. I also checked how the IP address is exposed. It's only through configfs `show` functions, which format it as a *string* using `sysfs_emit`. This completely eliminates the possibility of leaking any internal padding or uninitialized memory to userspace. Finally, when sending data, the code *only* copies either the IPv4 or IPv6 address (4 or 16 bytes respectively) into the IP header. No extra information is exposed. In summary, there's no risk of uninitialized memory usage, data leakage, or any other kind of memory safety issue here. Standard KASAN and other bug detectors are sufficient to catch memory corruption or out-of-bounds problems. Given that, KMSAN is not required. I'll set `NeedsKMSAN=false`. |
| 62/3 | 2026/08/10 19:42 | tool | set-results |
0mArgs:{
"KMSANReasoning": "The patch refactors how IP addresses are stored and parsed in the netconsole driver by replacing a `union inet_addr` and a boolean `ipv6` flag with a new `struct inet_addr` that explicitly tracks the address family (`AF_UNSPEC`, `AF_INET`, or `AF_INET6`). The `struct netconsole_target` containing these addresses is allocated using `kzalloc_obj` (which zero-initializes the memory), ensuring that the new `family` field defaults to `AF_UNSPEC` and the IP addresses are zeroed. The IP addresses are only exposed to userspace via configfs `show` functions, which format them as strings using `sysfs_emit`, preventing any potential leakage of padding bytes. When constructing network packets, only the exact IPv4 (4 bytes) or IPv6 (16 bytes) address fields are copied into the IP headers, again avoiding any padding leaks. There are no new allocations of uninitialized memory, no structures copied directly to userspace, and no control flow changes that could expose uninitialized memory. Standard KASAN and other bug detectors are sufficient to catch any potential memory corruption or out-of-bounds bugs. Therefore, a dedicated KMSAN fuzzing session is not required.",
"NeedsKMSAN": false
}Results: {
"KMSANReasoning": "The patch refactors how IP addresses are stored and parsed in the netconsole driver by replacing a `union inet_addr` and a boolean `ipv6` flag with a new `struct inet_addr` that explicitly tracks the address family (`AF_UNSPEC`, `AF_INET`, or `AF_INET6`). The `struct netconsole_target` containing these addresses is allocated using `kzalloc_obj` (which zero-initializes the memory), ensuring that the new `family` field defaults to `AF_UNSPEC` and the IP addresses are zeroed. The IP addresses are only exposed to userspace via configfs `show` functions, which format them as strings using `sysfs_emit`, preventing any potential leakage of padding bytes. When constructing network packets, only the exact IPv4 (4 bytes) or IPv6 (16 bytes) address fields are copied into the IP headers, again avoiding any padding leaks. There are no new allocations of uninitialized memory, no structures copied directly to userspace, and no control flow changes that could expose uninitialized memory. Standard KASAN and other bug detectors are sufficient to catch any potential memory corruption or out-of-bounds bugs. Therefore, a dedicated KMSAN fuzzing session is not required.",
"NeedsKMSAN": false
} |
| Total Calls | Total Tokens | Avg Tokens | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|
| Total Calls | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|