David Ahern cbbdf8433a netlink: extack needs to be reset each time through loop ... syzbot triggered the WARN_ON in netlink_ack testing the bad_attr value. The problem is that netlink_rcv_skb loops over the skb repeatedly invoking the callback and without resetting the extack leaving potentially stale data. Initializing each time through avoids the WARN_ON. Fixes: 2d4bc93368 ("netlink: extended ACK reporting") Reported-by: syzbot+315fa6766d0f7c359327@syzkaller.appspotmail.com Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-01-15 13:50:07 -05:00
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af_netlink.c	netlink: extack needs to be reset each time through loop	2018-01-15 13:50:07 -05:00
af_netlink.h	af_netlink: ensure that NLMSG_DONE never fails in dumps	2017-11-13 10:17:13 +09:00
diag.c	netlink/diag: report flags for netlink sockets	2017-04-05 07:13:56 -07:00
genetlink.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig	netlink: remove mmapped netlink support	2016-02-18 11:42:18 -05:00
Makefile	netlink: Diag core and basic socket info dumping (v2)	2013-03-21 12:38:03 -04:00