From: SJ Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SJ Park <sj@kernel.org>, "# 6 . 14 . x" <stable@vger.kernel.org>,
damon@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH 0/6] samples/damon: handle damon_{start,stop}() failures
Date: Mon, 29 Jun 2026 06:26:40 -0700 [thread overview]
Message-ID: <20260629132641.159851-1-sj@kernel.org> (raw)
In-Reply-To: <20260628214900.243ae17b910c18a4434036d7@linux-foundation.org>
On Sun, 28 Jun 2026 21:49:00 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
> On Sun, 28 Jun 2026 14:54:39 -0700 SJ Park <sj@kernel.org> wrote:
>
> > All DAMON sample modules are not correctly handling failures from
> > damon_start(). Among those, mtier also has an additional problem for
> > handling of damon_stop() failures. wsse and prcl also have a problem in
> > their damon_call() failure handling. As a result, memory leaks, next
> > DAMON operation disruptions, and use-after-free can happen. Fix those.
> >
> > Note that only the damon_start() failure caused issues can reliably be
> > reproduced. Reproducing those issues require the admin permission,
> > though.
>
> So it doesn't seem that we need to fast-track all this into 7.2-rcX?
Yes, I think it is fine as long as they can be merged into necessary stable
kernels in reasonable time. And 7.3 also sounds reasonable to me.
Thanks,
SJ
prev parent reply other threads:[~2026-06-29 13:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-28 21:54 [PATCH 0/6] samples/damon: handle damon_{start,stop}() failures SJ Park
2026-06-28 21:54 ` [PATCH 1/6] samples/damon/wsse: handle damon_start() failure SJ Park
2026-06-28 21:54 ` [PATCH 2/6] samples/damon/prcl: " SJ Park
2026-06-28 21:54 ` [PATCH 3/6] samples/damon/mtier: " SJ Park
2026-06-28 21:54 ` [PATCH 4/6] samples/damon/mtier: handle damon_stop() failure SJ Park
2026-06-28 22:09 ` sashiko-bot
2026-06-28 22:35 ` SJ Park
2026-06-28 21:54 ` [PATCH 5/6] samples/damon/wsse: stop and free damon ctx when damon_call() fails SJ Park
2026-06-28 21:54 ` [PATCH 6/6] samples/damon/prcl: " SJ Park
2026-06-29 4:49 ` [PATCH 0/6] samples/damon: handle damon_{start,stop}() failures Andrew Morton
2026-06-29 13:26 ` SJ Park [this message]
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