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| author | Liping Zhang <liping.zhang@spreadtrum.com> | 2016-08-22 15:58:18 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-08-25 13:11:30 +0200 |
| commit | 533e33009897c7dd1b0424c0d4b3331b222d5681 (patch) | |
| tree | a8167d525453b6f5871643412847d7d973814bd0 /include | |
| parent | netfilter: cttimeout: put back l4proto when replacing timeout policy (diff) | |
| download | linux-533e33009897c7dd1b0424c0d4b3331b222d5681.tar.xz linux-533e33009897c7dd1b0424c0d4b3331b222d5681.zip | |
netfilter: cttimeout: unlink timeout objs in the unconfirmed ct lists
KASAN reported this bug:
BUG: KASAN: use-after-free in icmp_packet+0x25/0x50 [nf_conntrack_ipv4] at
addr ffff880002db08c8
Read of size 4 by task lt-nf-queue/19041
Call Trace:
<IRQ> [<ffffffff815eeebb>] dump_stack+0x63/0x88
[<ffffffff813386f8>] kasan_report_error+0x528/0x560
[<ffffffff81338cc8>] kasan_report+0x58/0x60
[<ffffffffa07393f5>] ? icmp_packet+0x25/0x50 [nf_conntrack_ipv4]
[<ffffffff81337551>] __asan_load4+0x61/0x80
[<ffffffffa07393f5>] icmp_packet+0x25/0x50 [nf_conntrack_ipv4]
[<ffffffffa06ecaa0>] nf_conntrack_in+0x550/0x980 [nf_conntrack]
[<ffffffffa06ec550>] ? __nf_conntrack_confirm+0xb10/0xb10 [nf_conntrack]
[ ... ]
The main reason is that we missed to unlink the timeout objects in the
unconfirmed ct lists, so we will access the timeout objects that have
already been freed.
Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions