diff options
| author | Xie Yongji <xieyongji@bytedance.com> | 2021-04-12 17:55:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-28 13:39:59 +0200 |
| commit | 71777492b745837481630c751111eeb19bb589cf (patch) | |
| tree | 262ba7b0a1d4b93fe050b597b9bb873b7a0b2636 /include/linux/platform_data | |
| parent | aea70bd5a45591de27aac367af94d184892c06ab (diff) | |
vhost-vdpa: protect concurrent access to vhost device iotlb
commit a9d064524fc3cf463b3bb14fa63de78aafb40dab 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>
Diffstat (limited to 'include/linux/platform_data')
0 files changed, 0 insertions, 0 deletions