1 files changed, 6 insertions, 6 deletions

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 550e755747e0..3cabafb5cdd1 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -359,13 +359,11 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
                  */
                 do {
                         struct tcp_md5sig_key *key;
-                        memset(tcptw->tw_md5_key, 0, sizeof(tcptw->tw_md5_key));
-                        tcptw->tw_md5_keylen = 0;
+                        tcptw->tw_md5_key = NULL;
                         key = tp->af_specific->md5_lookup(sk, sk);
                         if (key != NULL) {
-                                memcpy(&tcptw->tw_md5_key, key->key, key->keylen);
-                                tcptw->tw_md5_keylen = key->keylen;
-                                if (tcp_alloc_md5sig_pool(sk) == NULL)
+                                tcptw->tw_md5_key = kmemdup(key, sizeof(*key), GFP_ATOMIC);
+                                if (tcptw->tw_md5_key && tcp_alloc_md5sig_pool(sk) == NULL)
                                         BUG();
                         }
                 } while (0);
@@ -405,8 +403,10 @@ void tcp_twsk_destructor(struct sock *sk)
 {
 #ifdef CONFIG_TCP_MD5SIG
         struct tcp_timewait_sock *twsk = tcp_twsk(sk);
-        if (twsk->tw_md5_keylen)
+        if (twsk->tw_md5_key) {
                 tcp_free_md5sig_pool();
+                kfree_rcu(twsk->tw_md5_key, rcu);
+        }
 #endif
 }
 EXPORT_SYMBOL_GPL(tcp_twsk_destructor);