ghsa-jv48-qx8c-4x4f
Vulnerability from github
Published
2024-07-30 09:32
Modified
2024-12-11 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42134"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-30T08:15:05Z",
    "severity": "MODERATE"
  },
  "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",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42134"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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