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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-11-02 02:14:00 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-11-03 15:28:03 +0300 |
| commit | 8866df9264a34e675b4ee8a151db819b87cce2d3 (patch) | |
| tree | 9d7f7ce50406f63272a4c6603334578db097b569 /net/netfilter/nft_compat.c | |
| parent | a95a7774d51e13f9cf4b7285666829b68852f07a (diff) | |
| download | linux-8866df9264a34e675b4ee8a151db819b87cce2d3.tar.xz | |
netfilter: nfnetlink_cttimeout: pass default timeout policy to obj_to_nlattr
Otherwise, we hit a NULL pointer deference since handlers always assume
default timeout policy is passed.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor2'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9575 Comm: syz-executor1 Not tainted 4.19.0+ #312
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 net/netfilter/nf_conntrack_proto_icmp.c:297
Fixes: c779e849608a ("netfilter: conntrack: remove get_timeout() indirection")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nft_compat.c')
0 files changed, 0 insertions, 0 deletions