upstream commit
Check l->hosts before dereferencing; fixes potential null
pointer deref. ok djm@
Upstream-ID: 81c0327c6ec361da794b5c680601195cc23d1301
diff --git a/ssh-keygen.c b/ssh-keygen.c
index ca94fe4..6fd1f03 100644
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-keygen.c,v 1.297 2017/03/06 00:44:51 dtucker Exp $ */
+/* $OpenBSD: ssh-keygen.c,v 1.298 2017/03/06 02:03:20 dtucker Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -1084,7 +1084,7 @@
struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx;
char *hashed, *cp, *hosts, *ohosts;
int has_wild = l->hosts && strcspn(l->hosts, "*?!") != strlen(l->hosts);
- int was_hashed = l->hosts[0] == HASH_DELIM;
+ int was_hashed = l->hosts && l->hosts[0] == HASH_DELIM;
switch (l->status) {
case HKF_STATUS_OK: