In the Linux kernel, the following vulnerability has been...
Moderate severity
Unreviewed
Published
Jul 30, 2024
to the GitHub Advisory Database
•
Updated Dec 11, 2024
Description
Published by the National Vulnerability Database
Jul 30, 2024
Published to the GitHub Advisory Database
Jul 30, 2024
Last updated
Dec 11, 2024
In the Linux kernel, the following vulnerability has been resolved:
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.
References