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Subject[PATCH] selinux: Use kmemdup instead of kmalloc + memcpy


Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
---
security/selinux/xfrm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 425b9f9..5c809c1 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;

--
1.8.3.1

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