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linux/drivers/vhost
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Jason Wang d65026c6c6 vhost: validate log when IOTLB is enabled 
Vq log_base is the userspace address of bitmap which has nothing to do
with IOTLB. So it needs to be validated unconditionally otherwise we
may try use 0 as log_base which may lead to pin pages that will lead
unexpected result (e.g trigger BUG_ON() in set_bit_to_user()).

Fixes: 6b1e6cc785 ("vhost: new device IOTLB API")
Reported-by: syzbot+6304bf97ef436580fede@syzkaller.appspotmail.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
History 2018-03-29 16:22:47 -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: validate log when IOTLB is enabled 2018-03-29 16:22:47 -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