GHSA-WM97-XP23-F4X4

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-11-03 21:33
VLAI?
Details

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

ndisc: extend RCU protection in ndisc_send_skb()

ndisc_send_skb() can be called without RTNL or RCU held.

Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential UAF.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-21760"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:16Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nndisc: extend RCU protection in ndisc_send_skb()\n\nndisc_send_skb() can be called without RTNL or RCU held.\n\nAcquire rcu_read_lock() earlier, so that we can use dev_net_rcu()\nand avoid a potential UAF.",
  "id": "GHSA-wm97-xp23-f4x4",
  "modified": "2025-11-03T21:33:00Z",
  "published": "2025-02-27T03:34:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21760"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04e05112f10354ffc3bb6cc796d553bab161594c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d576202b90b1b95a7c428a80b536f91b8201bcc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/789230e5a8c1097301afc802e242c79bc8835c67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae38982f521621c216fc2f5182cd091f4734641d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e24d225e4cb8cf108bde00b76594499b98f0a74d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed6ae1f325d3c43966ec1b62ac1459e2b8e45640"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.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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