From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
heiko@sntech.de, quentin.schulz@cherry.de,
Kuniyuki Iwashima <kuniyu@google.com>,
syzbot+e809069bc15f26300526@syzkaller.appspotmail.com,
Eric Dumazet <edumazet@google.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Jakub Kicinski <kuba@kernel.org>,
Heiko Stuebner <heiko.stuebner@cherry.de>
Subject: Re: [PATCH 6.12.y] tcp: Add preempt_{disable,enable}_nested() in reqsk_queue_hash_req().
Date: Thu, 16 Jul 2026 21:37:33 -0400 [thread overview]
Message-ID: <20260716232340.0006-stable-reply@kernel.org> (raw)
In-Reply-To: <20260715120704.1950127-1-heiko@sntech.de>
On Wed, Jul 15, 2026 at 02:07:04PM +0200, Heiko Stuebner wrote:
> Since all the syzbot reports had PREEMPT_RT enabled, the only
> possible scenario is that reqsk_queue_hash_req() is preempted
> after mod_timer() and before refcount_set(), and then the timer
> triggered after 1s aborts the reqsk due to its listener's close().
6.18 has the same issue and your patch applies there as-is, so I took
it for both trees.
Queued for 6.18 and 6.12, thanks.
--
Thanks,
Sasha
prev parent reply other threads:[~2026-07-17 1:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-15 12:07 [PATCH 6.12.y] tcp: Add preempt_{disable,enable}_nested() in reqsk_queue_hash_req() Heiko Stuebner
2026-07-17 1:37 ` Sasha Levin [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=20260716232340.0006-stable-reply@kernel.org \
--to=sashal@kernel.org \
--cc=bigeasy@linutronix.de \
--cc=edumazet@google.com \
--cc=heiko.stuebner@cherry.de \
--cc=heiko@sntech.de \
--cc=kuba@kernel.org \
--cc=kuniyu@google.com \
--cc=quentin.schulz@cherry.de \
--cc=stable@vger.kernel.org \
--cc=syzbot+e809069bc15f26300526@syzkaller.appspotmail.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox