From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Mikhail Arkhipov <m.arhipov@rosa.ru>
Cc: Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
lvc-project@linuxtesting.org
Subject: Re: [PATCH] mtd: nand: ecc-mxic: Fix use of uninitialized variable ret
Date: Tue, 29 Apr 2025 11:26:34 +0200 [thread overview]
Message-ID: <174591879451.993707.7630596131927470519.b4-ty@bootlin.com> (raw)
In-Reply-To: <20250408213906.23129-1-m.arhipov@rosa.ru>
On Wed, 09 Apr 2025 00:39:06 +0300, Mikhail Arkhipov wrote:
> If ctx->steps is zero, the loop processing ECC steps is skipped,
> and the variable ret remains uninitialized. It is later checked
> and returned, which leads to undefined behavior and may cause
> unpredictable results in user space or kernel crashes.
>
> This scenario can be triggered in edge cases such as misconfigured
> geometry, ECC engine misuse, or if ctx->steps is not validated
> after initialization.
>
> [...]
Applied to nand/next, thanks!
[1/1] mtd: nand: ecc-mxic: Fix use of uninitialized variable ret
commit: d95846350aac72303036a70c4cdc69ae314aa26d
Patche(s) should be available on mtd/linux.git and will be
part of the next PR (provided that no robot complains by then).
Kind regards,
Miquèl
prev parent reply other threads:[~2025-04-29 9:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-08 21:39 Mikhail Arkhipov
2025-04-09 7:38 ` Miquel Raynal
2025-04-29 9:26 ` Miquel Raynal [this message]
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