diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 78e88ddb1e4bd689e93b57688b9a7446356e6e8a..159696e02591858af42619facb7a1de29937b7b7 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4529,7 +4529,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
 	}
 
 	/* Validate addr_len before calling common connect/connectx routine. */
-	af = sctp_get_af_specific(addr->sa_family);
+	af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL :
+		sctp_get_af_specific(addr->sa_family);
 	if (!af || addr_len < af->sockaddr_len) {
 		err = -EINVAL;
 	} else {