From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 19:52:13 +0000 (-0400)
Subject: selinux: Use kmemdup instead of kmalloc + memcpy
X-Git-Tag: upstream/snapshot3+hdmi~3364^2^2~20
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d1db4b242134bb4c7170f4c15491980ac064ac3;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

selinux: Use kmemdup instead of kmalloc + memcpy

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
---

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 425b9f9..a91d205 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -268,10 +268,10 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 	if (!old_ctx)
 		return 0;
 
-	new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len, GFP_ATOMIC);
+	new_ctx = kmemdup(old_ctx, sizeof(*old_ctx) + old_ctx->ctx_len,
+			  GFP_ATOMIC);
 	if (!new_ctx)
 		return -ENOMEM;
-	memcpy(new_ctx, old_ctx, sizeof(*old_ctx) + old_ctx->ctx_len);
 	atomic_inc(&selinux_xfrm_refcount);
 	*new_ctxp = new_ctx;