linux-kernel - Re: [PATCH] cifs: add check for returning value of SMB2_set_info

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Date:   Wed, 16 Nov 2022 12:28:26 -0600
From:   Steve French <smfrench@...il.com>
To:     Anastasia Belova <abelova@...ralinux.ru>
Cc:     Steve French <sfrench@...ba.org>, Paulo Alcantara <pc@....nz>,
        Ronnie Sahlberg <lsahlber@...hat.com>,
        Shyam Prasad N <sprasad@...rosoft.com>,
        Tom Talpey <tom@...pey.com>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org,
        lvc-project@...uxtesting.org
Subject: Re: [PATCH] cifs: add check for returning value of SMB2_set_info_init

merged into cifs-2.6.git for-next

On Wed, Nov 16, 2022 at 8:26 AM Anastasia Belova <abelova@...ralinux.ru> wrote:
>
> If the returning value of SMB2_set_info_init is an error-value,
> exit the function.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 0967e5457954 ("cifs: use a compound for setting an xattr")
>
> Signed-off-by: Anastasia Belova <abelova@...ralinux.ru>
> ---
>  fs/cifs/smb2ops.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
> index 880cd494afea..c77e49b3fcc6 100644
> --- a/fs/cifs/smb2ops.c
> +++ b/fs/cifs/smb2ops.c
> @@ -1116,6 +1116,8 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
>                                 COMPOUND_FID, current->tgid,
>                                 FILE_FULL_EA_INFORMATION,
>                                 SMB2_O_INFO_FILE, 0, data, size);
> +       if (rc)
> +               goto sea_exit;
>         smb2_set_next_command(tcon, &rqst[1]);
>         smb2_set_related(&rqst[1]);
>
> --
> 2.30.2
>


-- 
Thanks,

Steve