diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -1272,6 +1272,7 @@
 			return (error);
 		if (fromlen < 0)
 			return (EINVAL);
+		fromlen = min(fromlen, SOCK_MAXADDRLEN);
 		sa = malloc(fromlen, M_SONAME, M_WAITOK);
 	} else {
 		fromlen = 0;