AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/06/22 16:31	flow	patch-triage	0m Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel code.", "WorthFuzzing": false }
1/1	2026/06/22 16:31	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit 8f43732e78a4e9dccd0f9d5bc8e82c47655d9875\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Mon Jun 22 16:31:25 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/tools/net/ynl/Makefile b/tools/net/ynl/Makefile\nindex d514a48dae270d..3cefe4ed96cb92 100644\n--- a/tools/net/ynl/Makefile\n+++ b/tools/net/ynl/Makefile\n@@ -22,7 +22,7 @@ tests: \| lib generated libynl.a\n ynltool: \| lib generated libynl.a\n libynl.a: \| lib generated\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ lib/ynl.o generated/-user.o\n+\t@$(AR) rcs $@ lib/ynl.o generated/-user.o\n \n $(SUBDIRS):\n \t@if [ -f \"$@/Makefile\" ] ; then \\\ndiff --git a/tools/net/ynl/generated/Makefile b/tools/net/ynl/generated/Makefile\nindex 86e1e4a959a751..ea4128f612d6c7 100644\n--- a/tools/net/ynl/generated/Makefile\n+++ b/tools/net/ynl/generated/Makefile\n@@ -37,7 +37,7 @@ all: protos.a $(HDRS) $(SRCS) $(KHDRS) $(KSRCS) $(UAPI) $(RSTS)\n \n protos.a: $(OBJS)\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ $(OBJS)\n+\t@$(AR) rcs $@ $(OBJS)\n \n %-user.h: $(SPECS_DIR)/%.yaml $(TOOL)\n \t@echo -e \"\\tGEN $@\"\ndiff --git a/tools/net/ynl/lib/Makefile b/tools/net/ynl/lib/Makefile\nindex 4b2b98704ff9ba..9b98c059960003 100644\n--- a/tools/net/ynl/lib/Makefile\n+++ b/tools/net/ynl/lib/Makefile\n@@ -15,7 +15,7 @@ all: ynl.a\n \n ynl.a: $(OBJS)\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ $(OBJS)\n+\t@$(AR) rcs $@ $(OBJS)\n \n clean:\n \trm -f .o .d *~\n" }
2/1	2026/06/22 16:31	agent	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel 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 8f43732e78a4e9dccd0f9d5bc8e82c47655d9875 Author: syz-cluster <triage@syzkaller.com> Date: Mon Jun 22 16:31:25 2026 +0000 syz-cluster: applied patch under review diff --git a/tools/net/ynl/Makefile b/tools/net/ynl/Makefile index d514a48dae270d..3cefe4ed96cb92 100644 --- a/tools/net/ynl/Makefile +++ b/tools/net/ynl/Makefile @@ -22,7 +22,7 @@ tests: \| lib generated libynl.a ynltool: \| lib generated libynl.a libynl.a: \| lib generated @echo -e "\tAR $@" - @ar rcs $@ lib/ynl.o generated/-user.o + @$(AR) rcs $@ lib/ynl.o generated/-user.o $(SUBDIRS): @if [ -f "$@/Makefile" ] ; then \ diff --git a/tools/net/ynl/generated/Makefile b/tools/net/ynl/generated/Makefile index 86e1e4a959a751..ea4128f612d6c7 100644 --- a/tools/net/ynl/generated/Makefile +++ b/tools/net/ynl/generated/Makefile @@ -37,7 +37,7 @@ all: protos.a $(HDRS) $(SRCS) $(KHDRS) $(KSRCS) $(UAPI) $(RSTS) protos.a: $(OBJS) @echo -e "\tAR $@" - @ar rcs $@ $(OBJS) + @$(AR) rcs $@ $(OBJS) %-user.h: $(SPECS_DIR)/%.yaml $(TOOL) @echo -e "\tGEN $@" diff --git a/tools/net/ynl/lib/Makefile b/tools/net/ynl/lib/Makefile index 4b2b98704ff9ba..9b98c059960003 100644 --- a/tools/net/ynl/lib/Makefile +++ b/tools/net/ynl/lib/Makefile @@ -15,7 +15,7 @@ all: ynl.a ynl.a: $(OBJS) @echo -e "\tAR $@" - @ar rcs $@ $(OBJS) + @$(AR) rcs $@ $(OBJS) clean: rm -f .o .d *~
3/2	2026/06/22 16:31	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 2228 output: 75 thoughts: 153 Thoughts: Assessing the Impact of the Makefile Modification Okay, so this patch is touching `tools/net/ynl/Makefile`, `tools/net/ynl/generated/Makefile`, and `tools/net/ynl/lib/Makefile`. The change is simply substituting `ar` with `$(AR)`. This is clearly a build system adjustment, and it's isolated to user-space tools within the `tools/net/ynl` directory. It's not impacting the kernel in any way. Given that, there's no logical connection to kernel functionality that would warrant fuzzing these changes. It's purely a build environment detail. Let me just quickly verify... Yes, `tools/net/ynl/Makefile`, `tools/net/ynl/generated/Makefile`, and `tools/net/ynl/lib/Makefile` are all definitively user-space components. Therefore, I'm going to set `WorthFuzzing=false`.
4/2	2026/06/22 16:31	tool	set-results	0m Args: { "EnableConfigs": [], "FocusSymbols": [], "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel code.", "WorthFuzzing": false } Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel code.", "WorthFuzzing": false }

Trajectory: (Expand/Collapse All)

Seq

Timestamp

Type

Name

Duration

0/0

2026/06/22 16:31

flow

patch-triage

Args:

null

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel code.",
  "WorthFuzzing": false
}

1/1

2026/06/22 16:31

action

read-patch-diff

Args:

null

Results:

{
  "PatchDiff": "commit 8f43732e78a4e9dccd0f9d5bc8e82c47655d9875\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Mon Jun 22 16:31:25 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/tools/net/ynl/Makefile b/tools/net/ynl/Makefile\nindex d514a48dae270d..3cefe4ed96cb92 100644\n--- a/tools/net/ynl/Makefile\n+++ b/tools/net/ynl/Makefile\n@@ -22,7 +22,7 @@ tests: | lib generated libynl.a\n ynltool: | lib generated libynl.a\n libynl.a: | lib generated\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ lib/ynl.o generated/*-user.o\n+\t@$(AR) rcs $@ lib/ynl.o generated/*-user.o\n \n $(SUBDIRS):\n \t@if [ -f \"$@/Makefile\" ] ; then \\\ndiff --git a/tools/net/ynl/generated/Makefile b/tools/net/ynl/generated/Makefile\nindex 86e1e4a959a751..ea4128f612d6c7 100644\n--- a/tools/net/ynl/generated/Makefile\n+++ b/tools/net/ynl/generated/Makefile\n@@ -37,7 +37,7 @@ all: protos.a $(HDRS) $(SRCS) $(KHDRS) $(KSRCS) $(UAPI) $(RSTS)\n \n protos.a: $(OBJS)\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ $(OBJS)\n+\t@$(AR) rcs $@ $(OBJS)\n \n %-user.h: $(SPECS_DIR)/%.yaml $(TOOL)\n \t@echo -e \"\\tGEN $@\"\ndiff --git a/tools/net/ynl/lib/Makefile b/tools/net/ynl/lib/Makefile\nindex 4b2b98704ff9ba..9b98c059960003 100644\n--- a/tools/net/ynl/lib/Makefile\n+++ b/tools/net/ynl/lib/Makefile\n@@ -15,7 +15,7 @@ all: ynl.a\n \n ynl.a: $(OBJS)\n \t@echo -e \"\\tAR $@\"\n-\t@ar rcs $@ $(OBJS)\n+\t@$(AR) rcs $@ $(OBJS)\n \n clean:\n \trm -f *.o *.d *~\n"
}

2/1

2026/06/22 16:31

agent

patch-evaluator

Model:

gemini-3.1-pro-preview

Args:

null

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel 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 8f43732e78a4e9dccd0f9d5bc8e82c47655d9875
Author: syz-cluster <triage@syzkaller.com>
Date:   Mon Jun 22 16:31:25 2026 +0000

    syz-cluster: applied patch under review

diff --git a/tools/net/ynl/Makefile b/tools/net/ynl/Makefile
index d514a48dae270d..3cefe4ed96cb92 100644
--- a/tools/net/ynl/Makefile
+++ b/tools/net/ynl/Makefile
@@ -22,7 +22,7 @@ tests: | lib generated libynl.a
 ynltool: | lib generated libynl.a
 libynl.a: | lib generated
 	@echo -e "\tAR $@"
-	@ar rcs $@ lib/ynl.o generated/*-user.o
+	@$(AR) rcs $@ lib/ynl.o generated/*-user.o
 
 $(SUBDIRS):
 	@if [ -f "$@/Makefile" ] ; then \
diff --git a/tools/net/ynl/generated/Makefile b/tools/net/ynl/generated/Makefile
index 86e1e4a959a751..ea4128f612d6c7 100644
--- a/tools/net/ynl/generated/Makefile
+++ b/tools/net/ynl/generated/Makefile
@@ -37,7 +37,7 @@ all: protos.a $(HDRS) $(SRCS) $(KHDRS) $(KSRCS) $(UAPI) $(RSTS)
 
 protos.a: $(OBJS)
 	@echo -e "\tAR $@"
-	@ar rcs $@ $(OBJS)
+	@$(AR) rcs $@ $(OBJS)
 
 %-user.h: $(SPECS_DIR)/%.yaml $(TOOL)
 	@echo -e "\tGEN $@"
diff --git a/tools/net/ynl/lib/Makefile b/tools/net/ynl/lib/Makefile
index 4b2b98704ff9ba..9b98c059960003 100644
--- a/tools/net/ynl/lib/Makefile
+++ b/tools/net/ynl/lib/Makefile
@@ -15,7 +15,7 @@ all: ynl.a
 
 ynl.a: $(OBJS)
 	@echo -e "\tAR $@"
-	@ar rcs $@ $(OBJS)
+	@$(AR) rcs $@ $(OBJS)
 
 clean:
 	rm -f *.o *.d *~

3/2

2026/06/22 16:31

llm

patch-evaluator

Model:

gemini-3.1-pro-preview

Args:

null

Results:

null

Tokens:

							input: 2228
							output: 75
							thoughts: 153

Thoughts:

**Assessing the Impact of the Makefile Modification**

Okay, so this patch is touching `tools/net/ynl/Makefile`, `tools/net/ynl/generated/Makefile`, and `tools/net/ynl/lib/Makefile`. The change is simply substituting `ar` with `$(AR)`. This is clearly a build system adjustment, and it's isolated to user-space tools within the `tools/net/ynl` directory. It's not impacting the kernel in any way.

Given that, there's no logical connection to kernel functionality that would warrant fuzzing these changes. It's purely a build environment detail.

Let me just quickly verify... Yes, `tools/net/ynl/Makefile`, `tools/net/ynl/generated/Makefile`, and `tools/net/ynl/lib/Makefile` are all definitively user-space components.

Therefore, I'm going to set `WorthFuzzing=false`.

4/2

2026/06/22 16:31

tool

set-results

Args:

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel code.",
  "WorthFuzzing": false
}

Results:

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies Makefiles in tools/net/ynl/ to use $(AR) instead of hardcoded ar. This is a build system change for user-space tools and does not affect the kernel 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)