Riskcovery

CVE-2024-42134

virtio-pci: Check if is_avq is NULL

State
Published
Severity
Not scored
Published
Jul 30, 2024
Updated
May 11, 2026
Reserved
Jul 29, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • fd27ef6b44bec26915c5b2b22c13856d9f0ba17a to before 5e2024b0b9b3d5709e3f7e9b92951d7e29154106Affected
  • fd27ef6b44bec26915c5b2b22c13856d9f0ba17a to before c8fae27d141a32a1624d0d0d5419d94252824498Affected
LinuxLinux
  • 6.8Affected
  • before 6.8Not affected
  • 6.9.9 through 6.9.*Not affected
  • 6.10 and laterNot affected

References

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