linux-kernel - Re: [PATCH v2] sched: fix potential use-after-free with cfs bandwidth

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Message-ID: <05f3fc66-f11d-4cda-8ea3-91aac650ec20@web.de>
Date: Fri, 21 Feb 2025 09:03:50 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Josh Don <joshdon@...gle.com>, kernel-janitors@...r.kernel.org,
 Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
 Peter Zijlstra <peterz@...radead.org>,
 Vincent Guittot <vincent.guittot@...aro.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Ben Segall <bsegall@...gle.com>,
 Chengming Zhou <chengming.zhou@...ux.dev>,
 Daniel Bristot de Oliveira <bristot@...hat.com>,
 Dietmar Eggemann <dietmar.eggemann@....com>,
 K Prateek Nayak <kprateek.nayak@....com>, Mel Gorman <mgorman@...e.de>,
 Steven Rostedt <rostedt@...dmis.org>,
 Valentin Schneider <vschneid@...hat.com>
Subject: Re: [PATCH v2] sched: fix potential use-after-free with cfs bandwidth

…
> For full correctness, we should avoid removal from the list until after
> we're done unthrottling in __cfsb_csd_unthrottle().
…

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc3#n94


…
> Reviewed-and-tested-by: K Prateek Nayak <kprateek.nayak@....com>
…

Is such a tag really supported?

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc3#n539

Regards,
Markus