netrom: Fix nr_getname() leak

nr_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
rtvt123 · Aug 6, 2009 · f6b97b2 · f6b97b2
1 parent 80922bb
commit f6b97b2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
@@ -847,6 +847,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
 		sax->fsa_ax25.sax25_family = AF_NETROM;
 		sax->fsa_ax25.sax25_ndigis = 1;
 		sax->fsa_ax25.sax25_call   = nr->user_addr;
+		memset(sax->fsa_digipeater, 0, sizeof(sax->fsa_digipeater));
 		sax->fsa_digipeater[0]     = nr->dest_addr;
 		*uaddr_len = sizeof(struct full_sockaddr_ax25);
 	} else {