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(parent: f8d1185) | patch
netfilter: ipv6: fix use-after-free Write in nf_nat_ipv6_manip_pkt
authorFlorian Westphal <fw@strlen.de>
Mon, 19 Feb 2018 07:10:17 +0000 (08:10 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 18 Mar 2018 10:17:51 +0000 (11:17 +0100)
commita6b736068c452e175f414dad337077663c637078
treeeb1c002764b21e4f647b936bfc82611fc2dfe3b5tree | snapshot
parentf8d118512600b67f1027cbb6b56d8ac8dc470b93commit | diff
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>
net/ipv6/netfilter/nf_nat_l3proto_ipv6.c diff | blob | history
Mirror: https://github.com/0ranko0P/kernel_xiaomi_msm8998/
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