linux-kernel - Re: [PATCH 3/5] selinux: use kmemdup in security_sid_to_context

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Message-ID: <3866077.CzkZjXbNak@sifl>
Date:	Wed, 30 Sep 2015 12:37:18 -0400
From:	Paul Moore <paul@...l-moore.com>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Stephen Smalley <sds@...ho.nsa.gov>,
	Eric Paris <eparis@...isplace.org>,
	James Morris <james.l.morris@...cle.com>,
	"Serge E. Hallyn" <serge@...lyn.com>, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] selinux: use kmemdup in security_sid_to_context_core()

On Saturday, September 26, 2015 12:34:17 AM Rasmus Villemoes wrote:
> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> ---
>  security/selinux/ss/services.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied.

> diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
> index c550df0e0ff1..994c824a34c6 100644
> --- a/security/selinux/ss/services.c
> +++ b/security/selinux/ss/services.c
> @@ -1259,12 +1259,12 @@ static int security_sid_to_context_core(u32 sid,
> char **scontext, *scontext_len = strlen(initial_sid_to_string[sid]) + 1;
>  			if (!scontext)
>  				goto out;
> -			scontextp = kmalloc(*scontext_len, GFP_ATOMIC);
> +			scontextp = kmemdup(initial_sid_to_string[sid],
> +					    *scontext_len, GFP_ATOMIC);
>  			if (!scontextp) {
>  				rc = -ENOMEM;
>  				goto out;
>  			}
> -			strcpy(scontextp, initial_sid_to_string[sid]);
>  			*scontext = scontextp;
>  			goto out;
>  		}

-- 
paul moore
www.paul-moore.com

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