linux/drivers/vhost
Xie Yongji 71777492b7 vhost-vdpa: protect concurrent access to vhost device iotlb
commit a9d064524f upstream.

Protect vhost device iotlb by vhost_dev->mutex. Otherwise,
it might cause corruption of the list and interval tree in
struct vhost_iotlb if userspace sends the VHOST_IOTLB_MSG_V2
message concurrently.

Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
Cc: stable@vger.kernel.org
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210412095512.178-1-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-28 13:39:59 +02:00
..
iotlb.c vhost: Fix documentation 2020-09-24 05:54:36 -04:00
Kconfig vhost_vdpa: implement IRQ offloading in vhost_vdpa 2020-08-05 11:08:42 -04:00
Makefile vhost: introduce vDPA-based backend 2020-04-02 10:41:40 -04:00
net.c vhost_net: fix ubuf refcount incorrectly when sendmsg fails 2021-01-12 20:18:13 +01:00
scsi.c vhost scsi: fix error return code in vhost_scsi_set_endpoint() 2020-12-30 11:54:00 +01:00
test.c tools/virtio: Add --reset 2020-06-22 12:34:21 -04:00
test.h tools/virtio: Add --reset 2020-06-22 12:34:21 -04:00
vdpa.c vhost-vdpa: protect concurrent access to vhost device iotlb 2021-04-28 13:39:59 +02:00
vhost.c vhost: Fix vhost_vq_reset() 2021-04-07 15:00:05 +02:00
vhost.h vhost: add helper to check if a vq has been setup 2020-11-15 17:30:54 -05:00
vringh.c vringh: fix vringh_iov_push_*() documentation 2020-11-25 04:22:48 -05:00
vsock.c vhost: allow device that does not depend on vhost worker 2020-06-04 15:36:51 -04:00