From d597ac657d79619be0e9c45f6da786390af3e808 Mon Sep 17 00:00:00 2001
From: tobhe <tobhe@cvs.openbsd.org>
Date: Sat, 3 Apr 2021 21:29:15 +0000
Subject: Add size check for sockaddr mask.

---
 sbin/iked/vroute.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sbin/iked/vroute.c b/sbin/iked/vroute.c
index 8538edcf415..daca91deca8 100644
--- a/sbin/iked/vroute.c
+++ b/sbin/iked/vroute.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vroute.c,v 1.7 2021/03/25 01:39:09 tobhe Exp $	*/
+/*	$OpenBSD: vroute.c,v 1.8 2021/04/03 21:29:14 tobhe Exp $	*/
 
 /*
  * Copyright (c) 2021 Tobias Heider <tobhe@openbsd.org>
@@ -108,6 +108,8 @@ vroute_getaddr(struct iked *env, struct imsg *imsg)
 	ptr += addr->sa_len;
 	left -= addr->sa_len;
 
+	if (left < sizeof(*mask))
+		fatalx("bad length imsg received");
 	mask = (struct sockaddr *) ptr;
 	if (mask->sa_family != af)
 		return (-1);
-- 
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