WANG Cong 205e1e255c ppp: defer netns reference release for ppp channel ... Matt reported that we have a NULL pointer dereference in ppp_pernet() from ppp_connect_channel(), i.e. pch->chan_net is NULL. This is due to that a parallel ppp_unregister_channel() could happen while we are in ppp_connect_channel(), during which pch->chan_net set to NULL. Since we need a reference to net per channel, it makes sense to sync the refcnt with the life time of the channel, therefore we should release this reference when we destroy it. Fixes: 1f461dcdd2 ("ppp: take reference on channels netns") Reported-by: Matt Bennett <Matt.Bennett@alliedtelesis.co.nz> Cc: Paul Mackerras <paulus@samba.org> Cc: linux-ppp@vger.kernel.org Cc: Guillaume Nault <g.nault@alphalink.fr> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-07-08 23:46:37 -04:00
..
bsd_comp.c
Kconfig
Makefile
ppp_async.c
ppp_deflate.c	ppp: deflate: never return len larger than output buffer	2015-01-29 14:50:01 -08:00
ppp_generic.c	ppp: defer netns reference release for ppp channel	2016-07-08 23:46:37 -04:00
ppp_mppe.c	ppp_mppe: Use skcipher and ahash	2016-01-27 20:35:45 +08:00
ppp_mppe.h
ppp_synctty.c
pppoe.c	pppoe: fix reference counting in PPPoE proxy	2016-02-17 16:02:01 -05:00
pppox.c	pppox: use standard module auto-loading feature	2015-12-03 15:12:54 -05:00
pptp.c	pptp: fix illegal memory access caused by multiple bind()s	2016-01-24 22:18:26 -08:00