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netfilter: xt_TCPOPTSTRIP: signed tcphoff for ipv6_skip_exthdr() retval
author
Roel Kluin
<12o3l@tiscali.nl>
Tue, 29 Apr 2008 10:15:10 +0000
(
03:15
-0700)
committer
David S. Miller
<davem@davemloft.net>
Tue, 29 Apr 2008 10:15:10 +0000
(
03:15
-0700)
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>
net/netfilter/xt_TCPOPTSTRIP.c
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diff --git
a/net/netfilter/xt_TCPOPTSTRIP.c
b/net/netfilter/xt_TCPOPTSTRIP.c
index
3b2aa56
..
9685b6f
100644
(file)
--- 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;