| commit | 39f154faecc23e42190a41e6225060c39092d1f8 | |
| author | Florian Westphal <fw@strlen.de> | |
| Mon, 19 Feb 2018 07:10:17 +0000 (19 08:10 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Thu, 15 Mar 2018 09:54:24 +0000 (15 10:54 +0100) | ||
| tree | 2e289907feb6132fcebc41bbe53f4b15331218e5 | treesnapshot (tar.gz zip) |
| parent | 2d7e07003950dadd2f918effff584b0c98501189 | commitdiff |
netfilter: ipv6: fix use-after-free Write in nf_nat_ipv6_manip_pkt
commit b078556aecd791b0e5cb3a59f4c3a14273b52121 upstream.
l4proto->manip_pkt() can cause reallocation of skb head so pointer
to the ipv6 header must be reloaded.
Reported-and-tested-by: <syzbot+10005f4292fc9cc89de7@syzkaller.appspotmail.com>
Fixes: 58a317f1061c89 ("netfilter: ipv6: add IPv6 NAT support")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b078556aecd791b0e5cb3a59f4c3a14273b52121 upstream.
l4proto->manip_pkt() can cause reallocation of skb head so pointer
to the ipv6 header must be reloaded.
Reported-and-tested-by: <syzbot+10005f4292fc9cc89de7@syzkaller.appspotmail.com>
Fixes: 58a317f1061c89 ("netfilter: ipv6: add IPv6 NAT support")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| net/ipv6/netfilter/nf_nat_l3proto_ipv6.c | diffblobblamehistory |