GHSA-R6H6-9448-4Q2F

Vulnerability from github – Published: 2024-06-19 15:30 – Updated: 2026-05-12 12:31
VLAI
Details

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

ipv6: sr: fix invalid unregister error path

The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL is not defined. In that case if seg6_hmac_init() fails, the genl_unregister_family() isn't called.

This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and null-ptr-deref") replaced unregister_pernet_subsys() with genl_unregister_family() in this error path.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-38612"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:21Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: fix invalid unregister error path\n\nThe error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL\nis not defined. In that case if seg6_hmac_init() fails, the\ngenl_unregister_family() isn\u0027t called.\n\nThis issue exist since commit 46738b1317e1 (\"ipv6: sr: add option to control\nlwtunnel support\"), and commit 5559cea2d5aa (\"ipv6: sr: fix possible\nuse-after-free and null-ptr-deref\") replaced unregister_pernet_subsys()\nwith genl_unregister_family() in this error path.",
  "id": "GHSA-r6h6-9448-4q2f",
  "modified": "2026-05-12T12:31:56Z",
  "published": "2024-06-19T15:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38612"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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