* Re: [PATCH] mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()
[not found] <20260331101553.88422-1-liu.yun@linux.dev>
@ 2026-04-01 1:32 ` SeongJae Park
0 siblings, 0 replies; only message in thread
From: SeongJae Park @ 2026-04-01 1:32 UTC (permalink / raw)
To: Jackie Liu; +Cc: SeongJae Park, akpm, linux-mm, damon, stable
+ damon@lists.linux.dev. Please Cc damon@ for all DAMON patches.
Hello Jackie,
On Tue, 31 Mar 2026 18:15:53 +0800 Jackie Liu <liu.yun@linux.dev> wrote:
> From: Jackie Liu <liuyun01@kylinos.cn>
>
> Destroy the DAMON context and reset the global pointer when
> damon_start() fails. Otherwise, the context allocated by
> damon_stat_build_ctx() is leaked, and the stale damon_stat_context
> pointer will be overwritten on the next enable attempt, making the
> old allocation permanently unreachable.
>
> Fixes: 369c415e6073 ("mm/damon: introduce DAMON_STAT module")
As this is a memory leak, let's add Cc: stable@ too.
Cc: <stable@vger.kernel.org> # 6.17.x
> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Reviewed-by: SeongJae Park <sj@kernel.org>
Thanks,
SJ
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[not found] <20260331101553.88422-1-liu.yun@linux.dev>
2026-04-01 1:32 ` [PATCH] mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start() SeongJae Park
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