ghsa-wcgf-w2rg-3g4r
Vulnerability from github
Published
2024-07-12 15:31
Modified
2025-11-04 00:30
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:

gve: Clear napi->skb before dev_kfree_skb_any()

gve_rx_free_skb incorrectly leaves napi->skb referencing an skb after it is freed with dev_kfree_skb_any(). This can result in a subsequent call to napi_get_frags returning a dangling pointer.

Fix this by clearing napi->skb before the skb is freed.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-40937"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-12T13:15:16Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: Clear napi-\u003eskb before dev_kfree_skb_any()\n\ngve_rx_free_skb incorrectly leaves napi-\u003eskb referencing an skb after it\nis freed with dev_kfree_skb_any(). This can result in a subsequent call\nto napi_get_frags returning a dangling pointer.\n\nFix this by clearing napi-\u003eskb before the skb is freed.",
  "id": "GHSA-wcgf-w2rg-3g4r",
  "modified": "2025-11-04T00:30:54Z",
  "published": "2024-07-12T15:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40937"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ce5341c36993b776012601921d7688693f8c037"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f4d93b78ade0a4c2cafd587f7b429ce95abb02e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75afd8724739ee5ed8165acde5f6ac3988b485cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a68184d5b420ea4fc7e6b7ceb52bbc66f90d3c50"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d221284991118c0ab16480b53baecd857c0bc442"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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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