From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 1 Jul 2014 17:40:31 +0000 (+0200)
Subject: proto: initialize result expression in ethertype_parse()
X-Git-Tag: v0.4~126
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=001f8bc05bbf9719b4e6b0eef4993faee28f1480;p=thirdparty%2Fnftables.git

proto: initialize result expression in ethertype_parse()

Otherwise, you may crash in:

nft add rule bridge filter input ether type ip

Reported-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/src/proto.c b/src/proto.c
index 0a37a658..e5f49cb2 100644
--- a/src/proto.c
+++ b/src/proto.c
@@ -754,6 +754,7 @@ static struct error_record *ethertype_parse(const struct expr *sym,
 {
 	struct error_record *erec;
 
+	*res = NULL;
 	erec = sym->dtype->basetype->parse(sym, res);
 	if (erec != NULL)
 		return erec;