From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH master 1/2] tlsf: hardening: unpoison trailing padding before zeroing it
Date: Tue, 22 Apr 2025 09:47:30 +0200 [thread overview]
Message-ID: <174530805080.2994153.4403549115894982173.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20250422053740.3436389-1-a.fatoum@pengutronix.de>
On Tue, 22 Apr 2025 07:37:39 +0200, Ahmad Fatoum wrote:
> The actual allocated buffer size can be bigger than what was requested
> due to alignment.
>
> When KASAN is enabled, only the requested size is unpoisoned.
> This currently leads to problems, because with
> CONFIG_INIT_ON_ALLOC_DEFAULT_ON enabled, the whole allocated
> buffer will be zeroed.
>
> [...]
Applied, thanks!
[1/2] tlsf: hardening: unpoison trailing padding before zeroing it
https://git.pengutronix.de/cgit/barebox/commit/?id=bad633c5392d (link may not be stable)
[2/2] tlsf: hardening: skip KASAN checks when zeroing memory
https://git.pengutronix.de/cgit/barebox/commit/?id=d5c5e18f0dfe (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2025-04-22 8:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-22 5:37 Ahmad Fatoum
2025-04-22 5:37 ` [PATCH master 2/2] tlsf: hardening: skip KASAN checks when zeroing memory Ahmad Fatoum
2025-04-22 7:47 ` Sascha Hauer [this message]
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