From: Petr Mladek <pmladek@suse.com>
To: Bradley Morgan <include@grrlz.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Feng Tang <feng.tang@linux.alibaba.com>,
Jinchao Wang <wangjinchao600@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] panic: fix va_list reuse in panic_try_force_cpu()
Date: Tue, 7 Jul 2026 11:18:30 +0200 [thread overview]
Message-ID: <akzEZlJ2ionV9d6R@pathway.suse.cz> (raw)
In-Reply-To: <20260705164123.18746-1-include@grrlz.net>
On Sun 2026-07-05 16:41:23, Bradley Morgan wrote:
> vsnprintf() consumes the caller's va_list. When the redirect fails,
> vpanic() reuses it for the panic message, which is undefined
> behavior. Use va_copy().
>
> Signed-off-by: Bradley Morgan <include@grrlz.net>
Great catch!
The patch looks good to me:
Reviewed-by: Petr Mladek <pmladek@suse.com>
Best Regards,
Petr
prev parent reply other threads:[~2026-07-07 9:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-05 16:41 [PATCH] panic: fix va_list reuse in panic_try_force_cpu() Bradley Morgan
2026-07-05 19:10 ` Andrew Morton
2026-07-07 9:28 ` Petr Mladek
2026-07-07 9:18 ` Petr Mladek [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=akzEZlJ2ionV9d6R@pathway.suse.cz \
--to=pmladek@suse.com \
--cc=akpm@linux-foundation.org \
--cc=feng.tang@linux.alibaba.com \
--cc=include@grrlz.net \
--cc=linux-kernel@vger.kernel.org \
--cc=wangjinchao600@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.