linux-kernel - Re: [PATCH 28/46] selinux: Return directly after a failed kzalloc() in user

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Message-ID: <CAHC9VhQ5XK2KrEDRKY-6ZsWKmy8uSHx6B41Yfzc8dvgoZY-TLQ@mail.gmail.com>
Date:   Wed, 29 Mar 2017 11:17:09 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:     linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov,
        Eric Paris <eparis@...isplace.org>,
        James Morris <james.l.morris@...cle.com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        William Roberts <william.c.roberts@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 28/46] selinux: Return directly after a failed kzalloc()
 in user_read()

On Sun, Jan 15, 2017 at 10:28 AM, SF Markus Elfring
<elfring@...rs.sourceforge.net> wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sat, 14 Jan 2017 22:08:22 +0100
>
> Return directly after a call of the function "kzalloc" failed
> at the beginning.
>
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  security/selinux/ss/policydb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Merged, thanks.

> diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
> index 3e43556e67b8..1c046d39e2a7 100644
> --- a/security/selinux/ss/policydb.c
> +++ b/security/selinux/ss/policydb.c
> @@ -1542,10 +1542,9 @@ static int user_read(struct policydb *p, struct hashtab *h, void *fp)
>         __le32 buf[3];
>         u32 len;
>
> -       rc = -ENOMEM;
>         usrdatum = kzalloc(sizeof(*usrdatum), GFP_KERNEL);
>         if (!usrdatum)
> -               goto bad;
> +               return -ENOMEM;
>
>         if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
>                 to_read = 3;
> --
> 2.11.0
>



-- 
paul moore
www.paul-moore.com