From: sashiko-bot@kernel.org
To: lirongqing <lirongqing@baidu.com>, linux-perf-users@vger.kernel.org
Subject: Re: [PATCH] perf intel-pt: Free the old snapshot reference array after growing it
Date: Fri, 06 Nov 2026 05:30:49 +0000 [thread overview]
Message-ID: <sashiko-outbox-200821@kernel.org> (raw)
In-Reply-To: <20261104021951.1779-1-lirongqing@baidu.com>
> From: Li RongQing <lirongqing@baidu.com>
>
> Growing snapshot_refs allocates a new array and copies the old entries,
> then overwrites the only pointer to the old array. Snapshot recording
> with more than sixteen AUX mappings leaks that allocation on expansion.
>
> Free the old array after copying its entries. The reference buffers are
> still owned by the entries copied into the replacement array.
>
> Fixes: 90e457f7be08 ("perf tools: Add Intel PT support")
> Signed-off-by: Li RongQing <lirongqing@baidu.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261104021951.1779-1-lirongqing@baidu.com?part=1
prev parent reply other threads:[~2026-11-06 5:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-04 2:19 [PATCH] perf intel-pt: Free the old snapshot reference array after growing it lirongqing
2026-11-04 9:50 ` Adrian Hunter
2026-11-04 21:18 ` Arnaldo Carvalho de Melo
2026-11-06 5:30 ` sashiko-bot [this message]
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