| commit | cd443f1e91ca600a092e780e8250cd6a2954b763 | |
| author | Xin Long <lucien.xin@gmail.com> | |
| Thu, 18 Jan 2018 06:48:03 +0000 (18 14:48 +0800) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Thu, 18 Jan 2018 20:14:51 +0000 (18 15:14 -0500) | ||
| tree | f76635f6578e3aaab43c44704889cbc27b788220 | treesnapshot (tar.gz zip) |
| parent | 7155f8f391576f133ed26c8d6bb8c7f03ceb404a | commitdiff |
netlink: reset extack earlier in netlink_rcv_skb
Move up the extack reset/initialization in netlink_rcv_skb, so that
those 'goto ack' will not skip it. Otherwise, later on netlink_ack
may use the uninitialized extack and cause kernel crash.
Fixes: cbbdf8433a5f ("netlink: extack needs to be reset each time through loop")
Reported-by: syzbot+03bee3680a37466775e7@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move up the extack reset/initialization in netlink_rcv_skb, so that
those 'goto ack' will not skip it. Otherwise, later on netlink_ack
may use the uninitialized extack and cause kernel crash.
Fixes: cbbdf8433a5f ("netlink: extack needs to be reset each time through loop")
Reported-by: syzbot+03bee3680a37466775e7@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/netlink/af_netlink.c | diffblobblamehistory |