AI Trajectory

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch contains only spelling/typo fixes in comments within selftests under tools/testing/selftests/. It does not modify any kernel source code or executable logic in the compiled kernel image.",
  "WorthFuzzing": false
}

null

{
  "PatchDiff": "commit c61c9b7f5b71dc44aa8aab33e6c2207e198d2429\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Mon Sep 7 09:11:39 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh\nindex 2a98d9c9202ed..b54b9d0396a1c 100755\n--- a/tools/testing/selftests/amd-pstate/tbench.sh\n+++ b/tools/testing/selftests/amd-pstate/tbench.sh\n@@ -103,7 +103,7 @@ parse_tbench()\n \ten_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1-$2.log)\n \tprintf \"Tbench-$1-#$2 power consumption(J): $en_sum\\n\" | tee -a $OUTFILE_TBENCH.result\n \n-\t# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.\n+\t# Permance is throughput per second, denoted T/t, where T is through rendered in t seconds.\n \t# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),\n \t# and t is time measured in seconds(s). This means that performance per watt becomes\n \t#       T/t   T/t    T\n@@ -161,7 +161,7 @@ gather_tbench()\n \tavg_en=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-energy-$1.log)\n \tprintf \"Tbench-$1 avg power consumption(J): $avg_en\\n\" | tee -a $OUTFILE_TBENCH.result\n \n-\t# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.\n+\t# Permance is throughput per second, denoted T/t, where T is through rendered in t seconds.\n \t# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),\n \t# and t is time measured in seconds(s). This means that performance per watt becomes\n \t#       T/t   T/t    T\ndiff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c\nindex f14eca63f20c4..88e7ce6ee977b 100644\n--- a/tools/testing/selftests/core/close_range_test.c\n+++ b/tools/testing/selftests/core/close_range_test.c\n@@ -506,7 +506,7 @@ TEST(close_range_cloexec_unshare_syzbot)\n \n \t/*\n \t * Create a huge gap in the fd table. When we now call\n-\t * CLOSE_RANGE_UNSHARE with a shared fd table and and with ~0U as upper\n+\t * CLOSE_RANGE_UNSHARE with a shared fd table and with ~0U as upper\n \t * bound the kernel will only copy up to fd1 file descriptors into the\n \t * new fd table. If the kernel is buggy and doesn't handle\n \t * CLOSE_RANGE_CLOEXEC correctly it will not have copied all file\ndiff --git a/tools/testing/selftests/proc/setns-dcache.c b/tools/testing/selftests/proc/setns-dcache.c\nindex 60ab197a73fc9..70389832dd226 100644\n--- a/tools/testing/selftests/proc/setns-dcache.c\n+++ b/tools/testing/selftests/proc/setns-dcache.c\n@@ -50,7 +50,7 @@ int main(void)\n \n \tatexit(f);\n \n-\t/* Check for priviledges and syscall availability straight away. */\n+\t/* Check for privileges and syscall availability straight away. */\n \tif (unshare(CLONE_NEWNET) == -1) {\n \t\tif (errno == ENOSYS || errno == EPERM) {\n \t\t\treturn 4;\ndiff --git a/tools/testing/selftests/proc/setns-sysvipc.c b/tools/testing/selftests/proc/setns-sysvipc.c\nindex 903890c5e5870..d03aa4838f0f1 100644\n--- a/tools/testing/selftests/proc/setns-sysvipc.c\n+++ b/tools/testing/selftests/proc/setns-sysvipc.c\n@@ -49,7 +49,7 @@ int main(void)\n \n \tatexit(f);\n \n-\t/* Check for priviledges and syscall availability straight away. */\n+\t/* Check for privileges and syscall availability straight away. */\n \tif (unshare(CLONE_NEWIPC) == -1) {\n \t\tif (errno == ENOSYS || errno == EPERM) {\n \t\t\treturn 4;\ndiff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c\nindex b9c1bfb6cc029..b6d69bf4fc1f7 100644\n--- a/tools/testing/selftests/resctrl/resctrlfs.c\n+++ b/tools/testing/selftests/resctrl/resctrlfs.c\n@@ -517,8 +517,8 @@ int get_mask_no_shareable(const char *cache_type, unsigned long *mask)\n \n /*\n  * taskset_benchmark - Taskset PID (i.e. benchmark) to a specified cpu\n- * @bm_pid:\t\tPID that should be binded\n- * @cpu_no:\t\tCPU number at which the PID would be binded\n+ * @bm_pid:\t\tPID that should be bound\n+ * @cpu_no:\t\tCPU number at which the PID would be bound\n  * @old_affinity:\tWhen not NULL, set to old CPU affinity\n  *\n  * Return: 0 on success, \u003c 0 on error.\n@@ -693,7 +693,7 @@ int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongr\n  * write_schemata - Update schemata of a con_mon grp\n  * @ctrlgrp:\t\tName of the con_mon grp\n  * @schemata:\t\tSchemata that should be updated to\n- * @cpu_no:\t\tCPU number that the benchmark PID is binded to\n+ * @cpu_no:\t\tCPU number that the benchmark PID is bound to\n  * @resource:\t\tResctrl resource (Eg: MB, L3, L2, etc.)\n  *\n  * Update schemata of a con_mon grp *only* if requested resctrl resource is\ndiff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h\nindex d98f3d612d888..88248b802c86b 100644\n--- a/tools/testing/selftests/ublk/kublk.h\n+++ b/tools/testing/selftests/ublk/kublk.h\n@@ -257,7 +257,7 @@ struct ublk_thread {\n \tunsigned short nr_bufs;\n \tunsigned short auto_buf_stride;\n \n-       /* followings are for BATCH_IO */\n+       /* following are for BATCH_IO */\n \tunsigned short commit_buf_start;\n \tunsigned char  commit_buf_elem_size;\n        /*\n"
}

core

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch contains only spelling/typo fixes in comments within selftests under tools/testing/selftests/. It does not modify any kernel source code or executable logic in the compiled kernel image.",
  "WorthFuzzing": false
}

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.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit c61c9b7f5b71dc44aa8aab33e6c2207e198d2429
Author: syz-cluster <triage@syzkaller.com>
Date:   Mon Sep 7 09:11:39 2026 +0000

    syz-cluster: applied patch under review

diff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh
index 2a98d9c9202ed..b54b9d0396a1c 100755
--- a/tools/testing/selftests/amd-pstate/tbench.sh
+++ b/tools/testing/selftests/amd-pstate/tbench.sh
@@ -103,7 +103,7 @@ parse_tbench()
 	en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1-$2.log)
 	printf "Tbench-$1-#$2 power consumption(J): $en_sum\n" | tee -a $OUTFILE_TBENCH.result
 
-	# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
+	# Permance is throughput per second, denoted T/t, where T is through rendered in t seconds.
 	# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
 	# and t is time measured in seconds(s). This means that performance per watt becomes
 	#       T/t   T/t    T
@@ -161,7 +161,7 @@ gather_tbench()
 	avg_en=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-energy-$1.log)
 	printf "Tbench-$1 avg power consumption(J): $avg_en\n" | tee -a $OUTFILE_TBENCH.result
 
-	# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
+	# Permance is throughput per second, denoted T/t, where T is through rendered in t seconds.
 	# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
 	# and t is time measured in seconds(s). This means that performance per watt becomes
 	#       T/t   T/t    T
diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c
index f14eca63f20c4..88e7ce6ee977b 100644
--- a/tools/testing/selftests/core/close_range_test.c
+++ b/tools/testing/selftests/core/close_range_test.c
@@ -506,7 +506,7 @@ TEST(close_range_cloexec_unshare_syzbot)
 
 	/*
 	 * Create a huge gap in the fd table. When we now call
-	 * CLOSE_RANGE_UNSHARE with a shared fd table and and with ~0U as upper
+	 * CLOSE_RANGE_UNSHARE with a shared fd table and with ~0U as upper
 	 * bound the kernel will only copy up to fd1 file descriptors into the
 	 * new fd table. If the kernel is buggy and doesn't handle
 	 * CLOSE_RANGE_CLOEXEC correctly it will not have copied all file
diff --git a/tools/testing/selftests/proc/setns-dcache.c b/tools/testing/selftests/proc/setns-dcache.c
index 60ab197a73fc9..70389832dd226 100644
--- a/tools/testing/selftests/proc/setns-dcache.c
+++ b/tools/testing/selftests/proc/setns-dcache.c
@@ -50,7 +50,7 @@ int main(void)
 
 	atexit(f);
 
-	/* Check for priviledges and syscall availability straight away. */
+	/* Check for privileges and syscall availability straight away. */
 	if (unshare(CLONE_NEWNET) == -1) {
 		if (errno == ENOSYS || errno == EPERM) {
 			return 4;
diff --git a/tools/testing/selftests/proc/setns-sysvipc.c b/tools/testing/selftests/proc/setns-sysvipc.c
index 903890c5e5870..d03aa4838f0f1 100644
--- a/tools/testing/selftests/proc/setns-sysvipc.c
+++ b/tools/testing/selftests/proc/setns-sysvipc.c
@@ -49,7 +49,7 @@ int main(void)
 
 	atexit(f);
 
-	/* Check for priviledges and syscall availability straight away. */
+	/* Check for privileges and syscall availability straight away. */
 	if (unshare(CLONE_NEWIPC) == -1) {
 		if (errno == ENOSYS || errno == EPERM) {
 			return 4;
diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
index b9c1bfb6cc029..b6d69bf4fc1f7 100644
--- a/tools/testing/selftests/resctrl/resctrlfs.c
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -517,8 +517,8 @@ int get_mask_no_shareable(const char *cache_type, unsigned long *mask)
 
 /*
  * taskset_benchmark - Taskset PID (i.e. benchmark) to a specified cpu
- * @bm_pid:		PID that should be binded
- * @cpu_no:		CPU number at which the PID would be binded
+ * @bm_pid:		PID that should be bound
+ * @cpu_no:		CPU number at which the PID would be bound
  * @old_affinity:	When not NULL, set to old CPU affinity
  *
  * Return: 0 on success, < 0 on error.
@@ -693,7 +693,7 @@ int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongr
  * write_schemata - Update schemata of a con_mon grp
  * @ctrlgrp:		Name of the con_mon grp
  * @schemata:		Schemata that should be updated to
- * @cpu_no:		CPU number that the benchmark PID is binded to
+ * @cpu_no:		CPU number that the benchmark PID is bound to
  * @resource:		Resctrl resource (Eg: MB, L3, L2, etc.)
  *
  * Update schemata of a con_mon grp *only* if requested resctrl resource is
diff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h
index d98f3d612d888..88248b802c86b 100644
--- a/tools/testing/selftests/ublk/kublk.h
+++ b/tools/testing/selftests/ublk/kublk.h
@@ -257,7 +257,7 @@ struct ublk_thread {
 	unsigned short nr_bufs;
 	unsigned short auto_buf_stride;
 
-       /* followings are for BATCH_IO */
+       /* following are for BATCH_IO */
 	unsigned short commit_buf_start;
 	unsigned char  commit_buf_elem_size;
        /*

gemini-3.7-flash

null

null

							input: 4612
							output: 72
							thoughts: 349
						

**WorthFuzzing Assessment**

Okay, so this patch diff is pretty straightforward. It looks like the only files being touched are all under `tools/testing/selftests/`, and they're all just fixing minor comments and spelling errors. Specifically, it's touching `tbench.sh`, `close_range_test.c`, `setns-dcache.c`, `setns-sysvipc.c`, `resctrlfs.c`, and `kublk.h`.

Now, let's see, what's the criteria for setting `WorthFuzzing=false`? Right, it's "Non-kernel and non-executable changes: Modifications to Documentation/, comments, or spelling fixes" and "User-space directories, self-tests, samples, or scripts... that do not affect the compiled kernel image".

Well, these changes are *all* comment and spelling fixes within self-tests. They're definitely not touching any kernel code or the kernel image itself. It's all user-space stuff. So, yeah, this is a clear case for `WorthFuzzing=false`.

Alright, time to execute that tool call to `set-results`.

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch contains only spelling/typo fixes in comments within selftests under tools/testing/selftests/. It does not modify any kernel source code or executable logic in the compiled kernel image.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch contains only spelling/typo fixes in comments within selftests under tools/testing/selftests/. It does not modify any kernel source code or executable logic in the compiled kernel image.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

null