linux-kernel - Re: [PATCH v2] crypto: scompress

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Message-ID: <ZY49WwEB/iAdaRB6@gondor.apana.org.au>
Date: Fri, 29 Dec 2023 11:30:35 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: chengming.zhou@...ux.dev
Cc: akpm@...ux-foundation.org, chrisl@...nel.org, davem@...emloft.net,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	nphamcs@...il.com, syzkaller-bugs@...glegroups.com,
	yosryahmed@...gle.com, 21cnbao@...il.com,
	zhouchengming@...edance.com,
	syzbot+3eff5e51bf1db122a16e@...kaller.appspotmail.com
Subject: Re: [PATCH v2] crypto: scompress - fix req->dst buffer overflow

On Wed, Dec 27, 2023 at 09:35:23AM +0000, chengming.zhou@...ux.dev wrote:
> From: Chengming Zhou <zhouchengming@...edance.com>
> 
> The req->dst buffer size should be checked before copying from the
> scomp_scratch->dst to avoid req->dst buffer overflow problem.
> 
> Fixes: 1ab53a77b772 ("crypto: acomp - add driver-side scomp interface")
> Reported-by: syzbot+3eff5e51bf1db122a16e@...kaller.appspotmail.com
> Closes: https://lore.kernel.org/all/0000000000000b05cd060d6b5511@google.com/
> Signed-off-by: Chengming Zhou <zhouchengming@...edance.com>
> ---
> v2:
>  - change error code to ENOSPC.
> ---
>  crypto/scompress.c | 6 ++++++
>  1 file changed, 6 insertions(+)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt