linux-kernel - Re: [PATCH] fix error code overwriting in smb2_get_info

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Message-ID: <CAKYAXd-+wag9SD0XJ4YujHKkwj=ZcEZnvi2YN=JVuwSQL2MTTg@mail.gmail.com>
Date: Thu, 25 Sep 2025 23:18:55 +0900
From: Namjae Jeon <linkinjeon@...nel.org>
To: Matvey Kovalev <matvey.kovalev@...ras.ru>
Cc: Steve French <smfrench@...il.com>, Sergey Senozhatsky <senozhatsky@...omium.org>, 
	Tom Talpey <tom@...pey.com>, linux-cifs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	lvc-project@...uxtesting.org, stable@...r.kernel.org
Subject: Re: [PATCH] fix error code overwriting in smb2_get_info_filesystem()

On Thu, Sep 25, 2025 at 9:14 PM Matvey Kovalev <matvey.kovalev@...ras.ru> wrote:
>
> If client doesn't negotiate with SMB3.1.1 POSIX Extensions,
> then proper error code won't be returned due to overwriting.
>
> Return error immediately.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: e2f34481b24db ("cifsd: add server-side procedures for SMB3")
> Cc: stable@...r.kernel.org
> Signed-off-by: Matvey Kovalev <matvey.kovalev@...ras.ru>
Applied it to #ksmbd-for-next-next.
Thanks!