From 3220ee4a7afa92cc7315f9f74b64bb8a7f9b1320 Mon Sep 17 00:00:00 2001
From: "Serge E. Hallyn" <serue@us.ibm.com>
Date: Mon, 15 May 2006 09:43:48 -0700
Subject: [PATCH] selinux: check for failed kmalloc in
 security_sid_to_context()

Check for NULL kmalloc return value before writing to it.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 security/selinux/ss/services.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 8a764928ff4b..6375dd578b39 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -592,6 +592,10 @@ int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
 
 			*scontext_len = strlen(initial_sid_to_string[sid]) + 1;
 			scontextp = kmalloc(*scontext_len,GFP_ATOMIC);
+			if (!scontextp) {
+				rc = -ENOMEM;
+				goto out;
+			}
 			strcpy(scontextp, initial_sid_to_string[sid]);
 			*scontext = scontextp;
 			goto out;
-- 
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