From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH 1/2] test: self: malloc: fix double free after expect_alloc_fail
Date: Wed, 22 Oct 2025 08:27:55 +0200 [thread overview]
Message-ID: <176111447547.4055565.1653642438831274704.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20251021145420.1274668-1-a.fatoum@pengutronix.de>
On Tue, 21 Oct 2025 16:54:13 +0200, Ahmad Fatoum wrote:
> If the realloc call unexpectedly succeeds, the p pointer is invalidated,
> but it's free'd unconditionally later on, which triggers a
> user-after-free.
>
> Account for this by zeroing p when it becomes stale.
>
>
> [...]
Applied, thanks!
[1/2] test: self: malloc: fix double free after expect_alloc_fail
https://git.pengutronix.de/cgit/barebox/commit/?id=745c925fa79e (link may not be stable)
[2/2] test: self: malloc: fix false positive when malloc store is registered
https://git.pengutronix.de/cgit/barebox/commit/?id=e11c2f618876 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2025-10-22 6:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-21 14:54 Ahmad Fatoum
2025-10-21 14:54 ` [PATCH 2/2] test: self: malloc: fix false positive when malloc store is registered Ahmad Fatoum
2025-10-22 6:27 ` Sascha Hauer [this message]
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