ghsa-fv74-m98x-m3w2
Vulnerability from github
Published
2024-09-04 21:30
Modified
2025-11-04 00:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv6: prevent possible UAF in ip6_xmit()

If skb_expand_head() returns NULL, skb has been freed and the associated dst/idev could also have been freed.

We must use rcu_read_lock() to prevent a possible UAF.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-44985"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-04T20:15:07Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent possible UAF in ip6_xmit()\n\nIf skb_expand_head() returns NULL, skb has been freed\nand the associated dst/idev could also have been freed.\n\nWe must use rcu_read_lock() to prevent a possible UAF.",
  "id": "GHSA-fv74-m98x-m3w2",
  "modified": "2025-11-04T00:31:22Z",
  "published": "2024-09-04T21:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44985"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/124b428fe28064c809e4237b0b38e97200a8a4a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d5ff7e339d04622d8282661df36151906d0e1c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38a21c026ed2cc7232414cb166efc1923f34af17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/975f764e96f71616b530e300c1bb2ac0ce0c2596"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3a3d5333c13a1be57499581eab4a8fc94d57f36"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c47e022011719fc5727bca661d662303180535ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc88d6c1f2895a5775795d82ec581afdff7661d1"
    },
    {
      "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:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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