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| author | Li Zhang <zhanglikernel@gmail.com> | 2024-03-16 13:25:54 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-05-22 08:39:41 -0400 |
| commit | c8fae27d141a32a1624d0d0d5419d94252824498 (patch) | |
| tree | de050c966953c6a0ee689055db7e60e516bb1eb1 /drivers/vhost | |
| parent | c0a7233f583f9aa53b5066785201746cdcd8fd24 (diff) | |
| download | lwn-c8fae27d141a32a1624d0d0d5419d94252824498.tar.gz lwn-c8fae27d141a32a1624d0d0d5419d94252824498.zip | |
virtio-pci: Check if is_avq is NULL
[bug]
In the virtio_pci_common.c function vp_del_vqs, vp_dev->is_avq is involved
to determine whether it is admin virtqueue, but this function vp_dev->is_avq
may be empty. For installations, virtio_pci_legacy does not assign a value
to vp_dev->is_avq.
[fix]
Check whether it is vp_dev->is_avq before use.
[test]
Test with virsh Attach device
Before this patch, the following command would crash the guest system
After applying the patch, everything seems to be working fine.
Signed-off-by: Li Zhang <zhanglikernel@gmail.com>
Message-Id: <1710566754-3532-1-git-send-email-zhanglikernel@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
0 files changed, 0 insertions, 0 deletions