linux-kernel - Re: [PATCH] arm: kasan: clear stale stack poison

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Message-ID: <CACRpkdZJpoHZ9DwV4R5NBSDXTwVjWVU7a1_qh8tHCtxPWPMTnw@mail.gmail.com>
Date: Tue, 2 Apr 2024 12:32:58 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: "boy.wu" <boy.wu@...iatek.com>
Cc: Russell King <linux@...linux.org.uk>, Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] arm: kasan: clear stale stack poison

On Fri, Dec 22, 2023 at 3:28 AM boy.wu <boy.wu@...iatek.com> wrote:

> From: Boy Wu <boy.wu@...iatek.com>
>
> We found below OOB crash:
(...)
> We find the root cause of this OOB is that arm does not clear stale stack
> poison in the case of cpuidle.
>
> This patch refer to arch/arm64/kernel/sleep.S to resolve this issue.
>
> Signed-off-by: Boy Wu <boy.wu@...iatek.com>

With the commit context pointed out by Mark Rutland:
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij