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From: Qing Wang <wangqing7171@gmail.com>
To: kees@kernel.org
Cc: akpm@linux-foundation.org, david@kernel.org,
	dietmar.eggemann@arm.com, juri.lelli@redhat.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	mhocko@suse.com, mingo@redhat.com, peterz@infradead.org,
	rostedt@goodmis.org,
	syzbot+e0378d4f4fe57aa2bdd0@syzkaller.appspotmail.com,
	vschneid@redhat.com, wangqing7171@gmail.com
Subject: Re: [PATCH] fork/pid: Fix use-after-free in __task_pid_nr_ns
Date: Thu,  8 Jan 2026 11:44:22 +0800	[thread overview]
Message-ID: <20260108034422.3871875-1-wangqing7171@gmail.com> (raw)
In-Reply-To: <202601071238.F86C2B8@keescook>

On Thu, 08 Jan 2026 at 04:39, Kees Cook <kees@kernel.org> wrote:
> It seems like there is synchronization missing between the task->signal
> assignment and its check in task_pid_ptr? Aren't there other ways of
> checking if a task is dead? This change doesn't look right to me...
> 
> -Kees

Thanks for your reply. Oleg and I discussed this and concluded that this
issue no longer exists.

Discussion: https://lore.kernel.org/all/aV5zkjzLTwKQOn9D@redhat.com/#R

Qing.


      parent reply	other threads:[~2026-01-08  5:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260105045609.1764387-1-wangqing7171@gmail.com>
2026-01-07 20:39 ` Kees Cook
2026-01-08  2:15   ` Qing Wang
2026-01-08  3:44   ` Qing Wang [this message]

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