AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/07/23 21:14 flow patch-triage
0m Args: 
null

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies a comment in arch/x86/include/asm/elf.h and makes no functional changes to the code.",
  "WorthFuzzing": false
}
1/1 2026/07/23 21:14 action read-patch-diff
0m Args: 
null

Results: 
{
  "PatchDiff": "commit d462c87e18d46da51202cc9971128c272cfea53a\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Thu Jul 23 21:14:17 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h\nindex 0de9df759c99af..4133c790e71a9b 100644\n--- a/arch/x86/include/asm/elf.h\n+++ b/arch/x86/include/asm/elf.h\n@@ -322,7 +322,7 @@ extern unsigned long get_sigframe_size(void);\n \n #else /* CONFIG_X86_32 */\n \n-/* 1GB for 64bit, 8MB for 32bit */\n+/* 16GB for 64bit, 8MB for 32bit */\n #define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)\n #define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())\n \n"
}
2/1 2026/07/23 21:14 agent patch-evaluator
0m Model: 
best-expensive

Args: 
null

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies a comment in arch/x86/include/asm/elf.h and makes no functional changes to the code.",
  "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).

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.
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.
   Do not list too generic configs (we already have them enabled). Only list those that
   specifically cover the modified code. 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 d462c87e18d46da51202cc9971128c272cfea53a
Author: syz-cluster <triage@syzkaller.com>
Date:   Thu Jul 23 21:14:17 2026 +0000

    syz-cluster: applied patch under review

diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 0de9df759c99af..4133c790e71a9b 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -322,7 +322,7 @@ extern unsigned long get_sigframe_size(void);
 
 #else /* CONFIG_X86_32 */
 
-/* 1GB for 64bit, 8MB for 32bit */
+/* 16GB for 64bit, 8MB for 32bit */
 #define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
 #define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())

3/2 2026/07/23 21:14 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 1942
							output: 60
							thoughts: 426

Thoughts: 
**Analyzing a Kernel Patch**

Okay, here's a patch that touches `arch/x86/include/asm/elf.h`. Let me take a look... Ah, it's a simple diff:

```diff
-/* 1GB for 64bit, 8MB for 32bit */
+/* 16GB for 64bit, 8MB for 32bit */
 #define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
```

Wait a second… all that's changed is the comment! The macro definition itself, `#define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)`, remains untouched. Let's just confirm that with another quick look at the context:

```diff
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -322,7 +322,7 @@ extern unsigned long get_sigframe_size(void);
 
 #else /* CONFIG_X86_32 */
 
-/* 1GB for 64bit, 8MB for 32bit */
+/* 16GB for 64bit, 8MB for 32bit */
 #define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
 #define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())
```

Yep, it's just the comment, updating the *description* of the value used for stack randomization. The actual *value* isn't altered at all. Given that, this clearly doesn't warrant fuzzing.
Therefore, `WorthFuzzing=false`.

4/2 2026/07/23 21:14 tool set-results
0m Args: 
{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies a comment in arch/x86/include/asm/elf.h and makes no functional changes to the code.",
  "WorthFuzzing": false
}

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies a comment in arch/x86/include/asm/elf.h and makes no functional changes to the code.",
  "WorthFuzzing": false
}
LLM Calls Summary:
Total Calls Total Tokens Avg Tokens Total Duration (Seconds) Avg Duration (Seconds)
Tool Calls Summary:
Total Calls Total Duration (Seconds) Avg Duration (Seconds)