AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/08/19 13:50	flow	patch-triage	0m Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "KMSANReasoning": "", "NeedsKMSAN": false, "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.", "WorthFuzzing": false }
1/1	2026/08/19 13:50	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit 138b2dce1f0662e987af79d6721955d7aba5f950\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Wed Aug 19 13:50:14 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/net/socket.c b/net/socket.c\nindex 63c69a0fa74e1..ba3eca4324e7b 100644\n--- a/net/socket.c\n+++ b/net/socket.c\n@@ -2371,7 +2371,6 @@ int do_sock_setsockopt(struct socket sock, bool compat, int level,\n out_put:\n \treturn err;\n }\n-EXPORT_SYMBOL(do_sock_setsockopt);\n \n / Set a socket option. Because we don't know the option lengths we have\n * to pass the user mode parameter for the protocols to sort out.\n@@ -2484,7 +2483,6 @@ int do_sock_getsockopt(struct socket sock, bool compat, int level,\n \n \treturn err;\n }\n-EXPORT_SYMBOL(do_sock_getsockopt);\n \n /\n *\tGet a socket option. Because we don't know the option lengths we have\n" }
2/1	2026/08/19 13:50	agent	patch-evaluator	0m Model: best-expensive Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.", "WorthFuzzing": false } 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 138b2dce1f0662e987af79d6721955d7aba5f950 Author: syz-cluster <triage@syzkaller.com> Date: Wed Aug 19 13:50:14 2026 +0000 syz-cluster: applied patch under review diff --git a/net/socket.c b/net/socket.c index 63c69a0fa74e1..ba3eca4324e7b 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2371,7 +2371,6 @@ int do_sock_setsockopt(struct socket sock, bool compat, int level, out_put: return err; } -EXPORT_SYMBOL(do_sock_setsockopt); / Set a socket option. Because we don't know the option lengths we have * to pass the user mode parameter for the protocols to sort out. @@ -2484,7 +2483,6 @@ int do_sock_getsockopt(struct socket sock, bool compat, int level, return err; } -EXPORT_SYMBOL(do_sock_getsockopt); / * Get a socket option. Because we don't know the option lengths we have
3/2	2026/08/19 13:50	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 2034 output: 67 thoughts: 191 Thoughts: My Assessment of the Patch Okay, so this patch is a straightforward one. It's pulling `EXPORT_SYMBOL(do_sock_setsockopt)` and `EXPORT_SYMBOL(do_sock_getsockopt)` from `net/socket.c`. Basically, this means these functions will no longer be available for use by external modules that aren't already built into the kernel or are not intended to be used externally. From a functional perspective, this is purely a build-related change. It's about access control and code visibility, not about altering the kernel's behavior. I can confidently say that this does not touch any core logic or execution flow. Let me just double check one more time... Yup, just those two lines. No functional impact. Therefore, WorthFuzzing=false. The reasoning is clear: the patch's sole impact is restricting symbol export; it doesn't modify any code that will alter program behaviour.
4/2	2026/08/19 13:50	tool	set-results	0m Args: { "EnableConfigs": [], "FocusSymbols": [], "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.", "WorthFuzzing": false } Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.", "WorthFuzzing": false }
5/1	2026/08/19 13:50	action	If	0m Args: { "WorthFuzzing": false } Results: null

Trajectory: (Expand/Collapse All)

Seq

Timestamp

Type

Name

Duration

0/0

2026/08/19 13:50

flow

patch-triage

Args:

null

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.",
  "WorthFuzzing": false
}

1/1

2026/08/19 13:50

action

read-patch-diff

Args:

null

Results:

{
  "PatchDiff": "commit 138b2dce1f0662e987af79d6721955d7aba5f950\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Wed Aug 19 13:50:14 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/net/socket.c b/net/socket.c\nindex 63c69a0fa74e1..ba3eca4324e7b 100644\n--- a/net/socket.c\n+++ b/net/socket.c\n@@ -2371,7 +2371,6 @@ int do_sock_setsockopt(struct socket *sock, bool compat, int level,\n out_put:\n \treturn err;\n }\n-EXPORT_SYMBOL(do_sock_setsockopt);\n \n /* Set a socket option. Because we don't know the option lengths we have\n  * to pass the user mode parameter for the protocols to sort out.\n@@ -2484,7 +2483,6 @@ int do_sock_getsockopt(struct socket *sock, bool compat, int level,\n \n \treturn err;\n }\n-EXPORT_SYMBOL(do_sock_getsockopt);\n \n /*\n  *\tGet a socket option. Because we don't know the option lengths we have\n"
}

2/1

2026/08/19 13:50

agent

patch-evaluator

Model:

best-expensive

Args:

null

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.",
  "WorthFuzzing": false
}

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 138b2dce1f0662e987af79d6721955d7aba5f950
Author: syz-cluster <triage@syzkaller.com>
Date:   Wed Aug 19 13:50:14 2026 +0000

    syz-cluster: applied patch under review

diff --git a/net/socket.c b/net/socket.c
index 63c69a0fa74e1..ba3eca4324e7b 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2371,7 +2371,6 @@ int do_sock_setsockopt(struct socket *sock, bool compat, int level,
 out_put:
 	return err;
 }
-EXPORT_SYMBOL(do_sock_setsockopt);
 
 /* Set a socket option. Because we don't know the option lengths we have
  * to pass the user mode parameter for the protocols to sort out.
@@ -2484,7 +2483,6 @@ int do_sock_getsockopt(struct socket *sock, bool compat, int level,
 
 	return err;
 }
-EXPORT_SYMBOL(do_sock_getsockopt);
 
 /*
  *	Get a socket option. Because we don't know the option lengths we have

3/2

2026/08/19 13:50

llm

patch-evaluator

Model:

gemini-3.1-pro-preview

Args:

null

Results:

null

Tokens:

							input: 2034
							output: 67
							thoughts: 191

Thoughts:

**My Assessment of the Patch**

Okay, so this patch is a straightforward one. It's pulling `EXPORT_SYMBOL(do_sock_setsockopt)` and `EXPORT_SYMBOL(do_sock_getsockopt)` from `net/socket.c`. Basically, this means these functions will no longer be available for use by external modules that aren't already built into the kernel or are not intended to be used externally. From a functional perspective, this is purely a build-related change. It's about access control and code visibility, not about altering the kernel's behavior. I can confidently say that this does *not* touch any core logic or execution flow. Let me just double check one more time... Yup, just those two lines. No functional impact. Therefore, WorthFuzzing=false. The reasoning is clear: the patch's sole impact is restricting symbol export; it doesn't modify any code that will alter program behaviour.

4/2

2026/08/19 13:50

tool

set-results

Args:

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.",
  "WorthFuzzing": false
}

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only removes EXPORT_SYMBOL for do_sock_setsockopt and do_sock_getsockopt, which does not change any functional logic or execution flow.",
  "WorthFuzzing": false
}

5/1

2026/08/19 13:50

action

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)