linux-kernel - Re: [PATCH 04/19] perf: Simplify perf_event

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Message-ID: <Z8lp0z-7nlUr7LyD@gmail.com>
Date: Thu, 6 Mar 2025 10:24:35 +0100
From: Ingo Molnar <mingo@...nel.org>
To: "Lai, Yi" <yi1.lai@...ux.intel.com>
Cc: Peter Zijlstra <peterz@...radead.org>, lucas.demarchi@...el.com,
	linux-kernel@...r.kernel.org, willy@...radead.org, acme@...nel.org,
	namhyung@...nel.org, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
	irogers@...gle.com, adrian.hunter@...el.com,
	kan.liang@...ux.intel.com
Subject: Re: [PATCH 04/19] perf: Simplify perf_event_alloc() error path


* Lai, Yi <yi1.lai@...ux.intel.com> wrote:

> Hi Peter Zijlstra ,
> 
> Greetings!
> 
> I used Syzkaller and found that in linux-next (tag: next-20250303), there are two issues and the first bad commit for both issues is
> 
> "
> 02be310c2d24 perf/core: Simplify the perf_event_alloc() error path
> "

We've had a number of fixes in this area, could you please check 
whether you can reproduce this crash with the latest perf tree:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core

Thanks!

	Ingo