linux-kernel - Re: [syzbot] [cgroups?] possible deadlock in try_to_wake

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Message-ID: <yo75qoe44ltntzu6qcyscsj2nluae52mfr52gap2uypqtpn4qk@jvfbspevdavp>
Date: Mon, 16 Jun 2025 11:50:36 +0200
From: Michal Koutný <mkoutny@...e.com>
To: syzbot <syzbot+b4529efee5bf3751bc06@...kaller.appspotmail.com>
Cc: cgroups@...r.kernel.org, hannes@...xchg.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com, tj@...nel.org
Subject: Re: [syzbot] [cgroups?] possible deadlock in try_to_wake_up (8)

On Fri, Jun 13, 2025 at 11:29:20PM -0700, syzbot <syzbot+b4529efee5bf3751bc06@...kaller.appspotmail.com> wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    39dfc971e42d arm64/ptrace: Fix stack-out-of-bounds read in..
> git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
> console output: https://syzkaller.appspot.com/x/log.txt?x=12fcb10c580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=941e423b930a32dc
> dashboard link: https://syzkaller.appspot.com/bug?extid=b4529efee5bf3751bc06
> compiler:       Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
> userspace arch: arm64

This looks very equal to
	Subject: [syzbot] [cgroups?] WARNING in NUM (2)
	Message-ID: <684f296b.a00a0220.279073.0033.GAE@...gle.com>

Michal

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