AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/09/05 23:31 flow patch-triage
0m Args:
null

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch only fixes spelling typos in comments within fs/nfs and net/sunrpc. No executable code, data structures, or kernel logic are modified.",
  "WorthFuzzing": false
}

1/1 2026/09/05 23:31 action read-patch-diff
0m Args:
null

Results:
{
  "PatchDiff": "commit 626e551f92e21955bdbd606092f106ee74fced4b\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Sat Sep 5 23:31:39 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/fs/nfs/export.c b/fs/nfs/export.c\nindex 8fb08bce0623a..ccc0a8a95af26 100644\n--- a/fs/nfs/export.c\n+++ b/fs/nfs/export.c\n@@ -18,7 +18,7 @@ enum {\n \tFILEID_HIGH_OFF = 0,\t/* inode fileid high */\n \tFILEID_LOW_OFF,\t\t/* inode fileid low */\n \tFILE_I_TYPE_OFF,\t/* inode type */\n-\tEMBED_FH_OFF\t\t/* embeded server fh */\n+\tEMBED_FH_OFF\t\t/* embedded server fh */\n };\n \n \ndiff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c\nindex 7fe8b91fa47c9..5f25b881b9b9c 100644\n--- a/fs/nfs/flexfilelayout/flexfilelayout.c\n+++ b/fs/nfs/flexfilelayout/flexfilelayout.c\n@@ -133,7 +133,7 @@ static int decode_nfs_fh(struct xdr_stream *xdr, struct nfs_fh *fh)\n  * I.e., kerberos is not supported to the DSes, so no pricipals.\n  *\n  * That means that one common function will suffice, but when\n- * principals are added, this should be split to accomodate\n+ * principals are added, this should be split to accommodate\n  * calls to both nfs_map_name_to_uid() and nfs_map_group_to_gid().\n  */\n static int\ndiff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h\nindex b48e5b87cb2a9..3acc9f90c0e33 100644\n--- a/fs/nfs/nfs4_fs.h\n+++ b/fs/nfs/nfs4_fs.h\n@@ -411,7 +411,7 @@ _nfs4_state_protect(struct nfs_client *clp, unsigned long sp4_mode,\n \tif (sp4_mode == NFS_SP4_MACH_CRED_CLEANUP ||\n \t    sp4_mode == NFS_SP4_MACH_CRED_PNFS_CLEANUP) {\n \t\t/* Using machine creds for cleanup operations\n-\t\t * is only relevent if the client credentials\n+\t\t * is only relevant if the client credentials\n \t\t * might expire. So don't bother for\n \t\t * RPC_AUTH_UNIX.  If file was only exported to\n \t\t * sec=sys, the PUTFH would fail anyway.\ndiff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c\nindex 04b1987115d5d..917306055f5ce 100644\n--- a/fs/nfs/nfs4proc.c\n+++ b/fs/nfs/nfs4proc.c\n@@ -8358,7 +8358,7 @@ int nfs4_proc_fsid_present(struct inode *inode, const struct cred *cred)\n }\n \n /*\n- * If 'use_integrity' is true and the state managment nfs_client\n+ * If 'use_integrity' is true and the state management nfs_client\n  * cl_rpcclient is using krb5i/p, use the integrity protected cl_rpcclient\n  * and the machine credential as per RFC3530bis and RFC5661 Security\n  * Considerations sections. Otherwise, just use the user cred with the\n@@ -10154,7 +10154,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync)\n }\n \n /*\n- * Use the state managment nfs_client cl_rpcclient, which uses krb5i (if\n+ * Use the state management nfs_client cl_rpcclient, which uses krb5i (if\n  * possible) as per RFC3530bis and RFC5661 Security Considerations sections\n  */\n static int _nfs41_proc_secinfo_no_name(struct nfs_server *server,\ndiff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c\nindex 4f9c0f639014f..992e8b01b4d1c 100644\n--- a/fs/nfs/pnfs.c\n+++ b/fs/nfs/pnfs.c\n@@ -2117,7 +2117,7 @@ static void _add_to_server_list(struct pnfs_layout_hdr *lo,\n }\n \n /*\n- * Layout segment is retreived from the server if not cached.\n+ * Layout segment is retrieved from the server if not cached.\n  * The appropriate layout segment is referenced and returned to the caller.\n  */\n struct pnfs_layout_segment *\ndiff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c\nindex 50e5e7f5b762d..0966d5cbcaa25 100644\n--- a/net/sunrpc/svcsock.c\n+++ b/net/sunrpc/svcsock.c\n@@ -1111,7 +1111,7 @@ static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp)\n \t/*\n \t * XXX!: cheating for now!  Only copying HEAD.\n \t * But we know this is good enough for now (in fact, for any\n-\t * callback reply in the forseeable future).\n+\t * callback reply in the foreseeable future).\n \t */\n \tdst = \u0026req-\u003erq_private_buf.head[0];\n \tsrc = \u0026rqstp-\u003erq_arg.head[0];\n"
}

2/1 2026/09/05 23:31 agent patch-evaluator
0m Model:
core

Args:
null

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only fixes spelling typos in comments within fs/nfs and net/sunrpc. No executable code, data structures, or kernel logic are modified.",
  "WorthFuzzing": false
}

Instruction:
You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Target architecture: amd64

For your convenience, here is the diff of the changes:
commit 626e551f92e21955bdbd606092f106ee74fced4b
Author: syz-cluster <triage@syzkaller.com>
Date:   Sat Sep 5 23:31:39 2026 +0000

    syz-cluster: applied patch under review

diff --git a/fs/nfs/export.c b/fs/nfs/export.c
index 8fb08bce0623a..ccc0a8a95af26 100644
--- a/fs/nfs/export.c
+++ b/fs/nfs/export.c
@@ -18,7 +18,7 @@ enum {
 	FILEID_HIGH_OFF = 0,	/* inode fileid high */
 	FILEID_LOW_OFF,		/* inode fileid low */
 	FILE_I_TYPE_OFF,	/* inode type */
-	EMBED_FH_OFF		/* embeded server fh */
+	EMBED_FH_OFF		/* embedded server fh */
 };
 
 
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 7fe8b91fa47c9..5f25b881b9b9c 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -133,7 +133,7 @@ static int decode_nfs_fh(struct xdr_stream *xdr, struct nfs_fh *fh)
  * I.e., kerberos is not supported to the DSes, so no pricipals.
  *
  * That means that one common function will suffice, but when
- * principals are added, this should be split to accomodate
+ * principals are added, this should be split to accommodate
  * calls to both nfs_map_name_to_uid() and nfs_map_group_to_gid().
  */
 static int
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index b48e5b87cb2a9..3acc9f90c0e33 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -411,7 +411,7 @@ _nfs4_state_protect(struct nfs_client *clp, unsigned long sp4_mode,
 	if (sp4_mode == NFS_SP4_MACH_CRED_CLEANUP ||
 	    sp4_mode == NFS_SP4_MACH_CRED_PNFS_CLEANUP) {
 		/* Using machine creds for cleanup operations
-		 * is only relevent if the client credentials
+		 * is only relevant if the client credentials
 		 * might expire. So don't bother for
 		 * RPC_AUTH_UNIX.  If file was only exported to
 		 * sec=sys, the PUTFH would fail anyway.
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 04b1987115d5d..917306055f5ce 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8358,7 +8358,7 @@ int nfs4_proc_fsid_present(struct inode *inode, const struct cred *cred)
 }
 
 /*
- * If 'use_integrity' is true and the state managment nfs_client
+ * If 'use_integrity' is true and the state management nfs_client
  * cl_rpcclient is using krb5i/p, use the integrity protected cl_rpcclient
  * and the machine credential as per RFC3530bis and RFC5661 Security
  * Considerations sections. Otherwise, just use the user cred with the
@@ -10154,7 +10154,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync)
 }
 
 /*
- * Use the state managment nfs_client cl_rpcclient, which uses krb5i (if
+ * Use the state management nfs_client cl_rpcclient, which uses krb5i (if
  * possible) as per RFC3530bis and RFC5661 Security Considerations sections
  */
 static int _nfs41_proc_secinfo_no_name(struct nfs_server *server,
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 4f9c0f639014f..992e8b01b4d1c 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2117,7 +2117,7 @@ static void _add_to_server_list(struct pnfs_layout_hdr *lo,
 }
 
 /*
- * Layout segment is retreived from the server if not cached.
+ * Layout segment is retrieved from the server if not cached.
  * The appropriate layout segment is referenced and returned to the caller.
  */
 struct pnfs_layout_segment *
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 50e5e7f5b762d..0966d5cbcaa25 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1111,7 +1111,7 @@ static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp)
 	/*
 	 * XXX!: cheating for now!  Only copying HEAD.
 	 * But we know this is good enough for now (in fact, for any
-	 * callback reply in the forseeable future).
+	 * callback reply in the foreseeable future).
 	 */
 	dst = &req->rq_private_buf.head[0];
 	src = &rqstp->rq_arg.head[0];

3/2 2026/09/05 23:31 llm patch-evaluator
0m Model:
gemini-3.7-flash

Args:
null

Results:
null

Tokens:
							input: 4176
							output: 63
							thoughts: 631
						

Thoughts:
**Analyzing a Minor Patch**

Okay, let's break this down. This patch is focused solely on fixing spelling errors – specifically typos – within comments across the NFS and sunrpc file systems. The files touched are `fs/nfs/export.c`, `fs/nfs/flexfilelayout/flexfilelayout.c`, `fs/nfs/nfs4_fs.h`, `fs/nfs/nfs4proc.c`, `fs/nfs/pnfs.c`, and `net/sunrpc/svcsock.c`. We're talking about insignificant changes like "embeded" to "embedded", "accomodate" to "accommodate", and so on.

Given this, I need to evaluate this patch according to my criteria. According to Section 2, the "WorthFuzzing=false" negative criteria is met: this is non-kernel and non-executable changes that include modifications to documentation, comments or spelling fixes.

Therefore, `WorthFuzzing` is unequivocally `false`. No fuzzing is needed here. The `EnableConfigs` list stays empty.  The `FocusSymbols` list is also empty. My reasoning is simple: the changes are purely superficial typo fixes in comments. No actual code, data structures, or control flow are touched.

Let's do a quick double-check, though, just to be absolutely sure. A closer inspection of the diff hunks confirms my initial assessment. Each and every modification is a comment correction. We're looking at things like changing "embeded server fh" to "embedded server fh". These are purely documentation enhancements, nothing more.

Alright, I am satisfied with this analysis. This patch warrants no further investigation. I can safely call `set-results` directly.



4/2 2026/09/05 23:31 tool set-results
0m Args:
{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only fixes spelling typos in comments within fs/nfs and net/sunrpc. No executable code, data structures, or kernel logic are modified.",
  "WorthFuzzing": false
}

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only fixes spelling typos in comments within fs/nfs and net/sunrpc. No executable code, data structures, or kernel logic are modified.",
  "WorthFuzzing": false
}

5/1 2026/09/05 23:31 action If
0m Args:
{
  "WorthFuzzing": false
}

Results:
null

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