VYPR
Unrated severityNVD Advisory· Published Jul 30, 2024· Updated May 4, 2025

virtio-pci: Check if is_avq is NULL

CVE-2024-42134

Description

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.

Affected products

22

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

2

News mentions

0

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