linux-kernel - Re: [PATCH 1/2] fs/proc: do_task_stat: Fix ESP not readable during coredump

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Message-ID: <20241222191837.GA4224@redhat.com>
Date: Sun, 22 Dec 2024 20:18:37 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Nam Cao <namcao@...utronix.de>
Cc: Shuah Khan <shuah@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dylan Hatch <dylanbhatch@...gle.com>,
	"Eric W . Biederman" <ebiederm@...ssion.com>,
	John Ogness <john.ogness@...utronix.de>,
	Kees Cook <kees@...nel.org>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kselftest@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH 1/2] fs/proc: do_task_stat: Fix ESP not readable during
 coredump

Hi Nam,

On 12/20, Nam Cao wrote:
>
> > Can't the trivial patch below fix the problem?
>
> It can. In fact this is the original fix we had. I thought that checking a
> single "core_state" is simpler than checking 3 flags, oh well..
>
> Can you send a proper patch, or should I do it?

Can you send V2 please? It was you who found/investigated the problem,
and the patch is trivial.

Feel free to include my acked-by.

Thanks,

Oleg.