From: John Crispin <blogic@openwrt.org>
Date: Wed, 25 Jun 2014 01:09:02 +0000 (+0100)
Subject: fix use after free
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fmdnsd.git;a=commitdiff_plain;h=f83b658d1eece21bc704bde04fc00fcfba88847f;ds=sidebyside

fix use after free

Signed-off-by: John Crispin <blogic@openwrt.org>
---

diff --git a/cache.c b/cache.c
index adfc815..150fb26 100644
--- a/cache.c
+++ b/cache.c
@@ -300,8 +300,8 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
 	r = cache_record_find(name, a->type, port, dlen, rdata);
 	if (r) {
 		if (!a->ttl) {
-			cache_record_free(r);
 			DBG(1, "D -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);
+			cache_record_free(r);
 		} else {
 			r->ttl = a->ttl;
 			DBG(1, "A -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);