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Diffstat (limited to 'net/dccp/proto.c')
-rw-r--r--net/dccp/proto.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index b03ecf6b2bb0..f79bcef5088f 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -473,14 +473,9 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type,
if (optlen < 1 || optlen > DCCP_FEAT_MAX_SP_VALS)
return -EINVAL;
- val = kmalloc(optlen, GFP_KERNEL);
- if (val == NULL)
- return -ENOMEM;
-
- if (copy_from_user(val, optval, optlen)) {
- kfree(val);
- return -EFAULT;
- }
+ val = memdup_user(optval, optlen);
+ if (IS_ERR(val))
+ return PTR_ERR(val);
lock_sock(sk);
if (type == DCCP_SOCKOPT_TX_CCID || type == DCCP_SOCKOPT_CCID)