Jason Wang dc6455a71c vhost: correctly remove wait queue during poll failure ...

We tried to remove vq poll from wait queue, but do not check whether
or not it was in a list before. This will lead double free. Fixing
this by switching to use vhost_poll_stop() which zeros poll->wqh after
removing poll from waitqueue to make sure it won't be freed twice.

Cc: Darren Kenny <darren.kenny@oracle.com>
Reported-by: syzbot+c0272972b01b872e604a@syzkaller.appspotmail.com
Fixes: 2b8b328b61c79 ("vhost_net: handle polling errors when setting backend")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2018-03-27 13:03:18 -04:00

..

Kconfig

tap: tap as an independent module

2017-02-11 20:59:41 -05:00

Kconfig.vringh

vhost: split out vringh Kconfig

2016-08-02 16:54:28 +03:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

net.c

vhost_net: add missing lock nesting notation

2018-03-26 12:59:01 -04:00

scsi.c

vhost: remove unused lock check flag in vhost_dev_cleanup()

2018-02-01 16:26:44 +02:00

test.c

vhost: remove unused lock check flag in vhost_dev_cleanup()

2018-02-01 16:26:44 +02:00

test.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vhost.c

vhost: correctly remove wait queue during poll failure

2018-03-27 13:03:18 -04:00

vhost.h

virtio, vhost: fixes, cleanups, features

2018-02-08 10:41:00 -08:00

vringh.c

vringh: kill off ACCESS_ONCE()

2016-12-16 00:13:36 +02:00

vsock.c

vhost: remove unused lock check flag in vhost_dev_cleanup()

2018-02-01 16:26:44 +02:00