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netfilter: xt_TCPOPTSTRIP: signed tcphoff for ipv6_skip_exthdr() retval

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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>
This commit is contained in:
Roel Kluin 2008-04-29 03:15:10 -07:00 • committed by David S. Miller
parent 246eb2af06
commit be8d0d7903
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/xt_TCPOPTSTRIP.c
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@ -90,7 +90,7 @@ tcpoptstrip_tg6(struct sk_buff *skb, const struct net_device *in,
const struct xt_target *target, const void *targinfo) const struct xt_target *target, const void *targinfo)
{ {
struct ipv6hdr *ipv6h = ipv6_hdr(skb); struct ipv6hdr *ipv6h = ipv6_hdr(skb);
unsigned int tcphoff; int tcphoff;
u_int8_t nexthdr; u_int8_t nexthdr;
nexthdr = ipv6h->nexthdr; nexthdr = ipv6h->nexthdr;