github - ghsa-jv48-qx8c-4x4f

GHSA-JV48-QX8C-4X4F

Vulnerability from github – Published: 2024-07-30 09:32 – Updated: 2024-12-11 18:30

Details

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42134"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
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    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-30T08:15:05Z",
    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-pci: Check if is_avq is NULL\n\n[bug]\nIn the virtio_pci_common.c function vp_del_vqs, vp_dev-\u003eis_avq is involved\nto determine whether it is admin virtqueue, but this function vp_dev-\u003eis_avq\n may be empty. For installations, virtio_pci_legacy does not assign a value\n to vp_dev-\u003eis_avq.\n\n[fix]\nCheck whether it is vp_dev-\u003eis_avq before use.\n\n[test]\nTest with virsh Attach device\nBefore this patch, the following command would crash the guest system\n\nAfter applying the patch, everything seems to be working fine.",
  "id": "GHSA-jv48-qx8c-4x4f",
  "modified": "2024-12-11T18:30:36Z",
  "published": "2024-07-30T09:32:02Z",
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}

CVE-2024-42134 (GCVE-0-2024-42134)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2025-05-04 09:23

Summary

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.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5e2024b0b9b3d5709…
	https://git.kernel.org/stable/c/c8fae27d141a32a16…

Impacted products

Vendor

Product

Version

Linux

Affected: fd27ef6b44bec26915c5b2b22c13856d9f0ba17a , < 5e2024b0b9b3d5709e3f7e9b92951d7e29154106 (git)
Affected: fd27ef6b44bec26915c5b2b22c13856d9f0ba17a , < c8fae27d141a32a1624d0d0d5419d94252824498 (git)

Linux

Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-JV48-QX8C-4X4F

CVE-2024-42134 (GCVE-0-2024-42134)

Tags

Sightings

Nomenclature