linux-kernel - Re: [PATCH next] mm/damon/tests/sysfs-kunit: fix use after free on error path

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Message-ID: <20251121163542.137692-1-sj@kernel.org>
Date: Fri, 21 Nov 2025 08:35:41 -0800
From: SeongJae Park <sj@...nel.org>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH next] mm/damon/tests/sysfs-kunit: fix use after free on error path

On Fri, 21 Nov 2025 16:36:38 +0300 Dan Carpenter <dan.carpenter@...aro.org> wrote:

> Re-order these frees to avoid dereferencing "sysfs_target" after it has
> been freed.

Thank you for finding and fixing this!

> 
> Fixes: ee131696794c ("mm/damon/tests/sysfs-kunit: handle alloc failures on damon_sysfs_test_add_targets()")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>

Reviewed-by: SeongJae Park <sj@...nel.org>


Thanks,
SJ

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