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Check l->hosts before dereferencing; fixes potential null
pointer deref. ok djm@

Upstream-ID: 81c0327c6ec361da794b5c680601195cc23d1301
This commit is contained in:
dtucker@openbsd.org 2017-03-06 02:03:20 +00:00 committed by Darren Tucker
parent d072370793
commit 18501151cf
1 changed files with 2 additions and 2 deletions
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4
ssh-keygen.c
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@ -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 @@ known_hosts_hash(struct hostkey_foreach_line *l, void *_ctx)
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: