ghsa-g77r-g63q-vjf8
Vulnerability from github
Published
2024-04-10 21:30
Modified
2025-03-27 21:31
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:

iavf: free q_vectors before queues in iavf_disable_vf

iavf_free_queues() clears adapter->num_active_queues, which iavf_free_q_vectors() relies on, so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47201"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-10T19:15:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: free q_vectors before queues in iavf_disable_vf\n\niavf_free_queues() clears adapter-\u003enum_active_queues, which\niavf_free_q_vectors() relies on, so swap the order of these two function\ncalls in iavf_disable_vf(). This resolves a panic encountered when the\ninterface is disabled and then later brought up again after PF\ncommunication is restored.",
  "id": "GHSA-g77r-g63q-vjf8",
  "modified": "2025-03-27T21:31:07Z",
  "published": "2024-04-10T21:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47201"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f"
    }
  ],
  "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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