netfilter: xt_TCPOPTSTRIP: signed tcphoff for ipv6_skip_exthdr() retval

if tcphoff remains unsigned, a negative ipv6_skip_exthdr() return value will go unnoticed, Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Apr 29, 2008 · be8d0d7 · be8d0d7
1 parent 246eb2a
commit be8d0d7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/netfilter/xt_TCPOPTSTRIP.c b/net/netfilter/xt_TCPOPTSTRIP.c
@@ -90,7 +90,7 @@ tcpoptstrip_tg6(struct sk_buff *skb, const struct net_device *in,
 		const struct xt_target *target, const void *targinfo)
 {
 	struct ipv6hdr *ipv6h = ipv6_hdr(skb);
-	unsigned int tcphoff;
+	int tcphoff;
 	u_int8_t nexthdr;
 
 	nexthdr = ipv6h->nexthdr;