linux-kernel - Re: [PATCH][cifs-next] cifs: set oparms.create_options rather than or'ing in CREATE_OPEN_BACKUP

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Message-ID: <CAH2r5mvDn+YnFiag3oeakjkBj3dnYxXPRrhN=p9NiDXrDY4nnQ@mail.gmail.com>
Date:   Wed, 5 Jul 2017 20:02:22 -0500
From:   Steve French <smfrench@...il.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Steve French <sfrench@...ba.org>,
        "linux-cifs@...r.kernel.org" <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        kernel-janitors <kernel-janitors@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][cifs-next] cifs: set oparms.create_options rather than
 or'ing in CREATE_OPEN_BACKUP_INTENT

good catch - merged into cifs-2.6.git for-next

On Wed, Jul 5, 2017 at 7:47 AM, Colin King <colin.king@...onical.com> wrote:
> From: Colin Ian King <colin.king@...onical.com>
>
> Currently oparms.create_options is uninitialized and the code is logically
> or'ing in CREATE_OPEN_BACKUP_INTENT onto a garbage value of
> oparms.create_options from the stack.  Fix this by just setting the value
> rather than or'ing in the setting.
>
> Detected by CoverityScan, CID#1447220 ("Unitialized scale value")
>
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  fs/cifs/smb2ops.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
> index 941c40b7a870..c805b7619083 100644
> --- a/fs/cifs/smb2ops.c
> +++ b/fs/cifs/smb2ops.c
> @@ -1339,7 +1339,7 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
>         xid = get_xid();
>
>         if (backup_cred(cifs_sb))
> -               oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
> +               oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
>         else
>                 oparms.create_options = 0;
>
> --
> 2.11.0
>
> --
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-- 
Thanks,

Steve