| Message ID | bba4b68de747f6d3d580232a15592f6ba0fc6722.1364673589.git.mschiffer@universe-factory.net |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c index 33608c6..c476f16 100644 --- a/net/ipv6/netfilter/ip6t_NPT.c +++ b/net/ipv6/netfilter/ip6t_NPT.c @@ -57,7 +57,7 @@ static bool ip6t_npt_map_pfx(const struct ip6t_npt_tginfo *npt, if (pfx_len - i >= 32) mask = 0; else - mask = htonl(~((1 << (pfx_len - i)) - 1)); + mask = htonl(((1 << (i - pfx_len + 32)) - 1)); idx = i / 32; addr->s6_addr32[idx] &= mask;
The bitmask used for the prefix mangling was being calculated incorrectly, leading to the wrong part of the address being replaced when the prefix length wasn't a multiple of 32. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> --- Hi, this patch should to 3.9 and, if possible, 3.8-stable. Regards, Matthias Schiffer net/ipv6/netfilter/ip6t_NPT.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)