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| author | Florian Westphal <fw@strlen.de> | 2020-01-06 23:34:17 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-01-08 23:31:22 +0100 |
| commit | 1d9a7acd3d1e74c2d150d8934f7f55bed6d70858 (patch) | |
| tree | 983aba19772709f7b21b5c495556731159736bf9 /lib | |
| parent | fb46f1b7806977e9135a83eb347e5d82e68233a2 (diff) | |
| download | linux-1d9a7acd3d1e74c2d150d8934f7f55bed6d70858.tar.bz2 | |
netfilter: conntrack: dccp, sctp: handle null timeout argument
The timeout pointer can be NULL which means we should modify the
per-nets timeout instead.
All do this, except sctp and dccp which instead give:
general protection fault: 0000 [#1] PREEMPT SMP KASAN
net/netfilter/nf_conntrack_proto_dccp.c:682
ctnl_timeout_parse_policy+0x150/0x1d0 net/netfilter/nfnetlink_cttimeout.c:67
cttimeout_default_set+0x150/0x1c0 net/netfilter/nfnetlink_cttimeout.c:368
nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
Reported-by: syzbot+46a4ad33f345d1dd346e@syzkaller.appspotmail.com
Fixes: c779e849608a8 ("netfilter: conntrack: remove get_timeout() indirection")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions