ghsa-7xf4-wr6x-3r95
Vulnerability from github
Published
2024-05-17 12:31
Modified
2025-09-26 18:31
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:

net: mctp: take ownership of skb in mctp_local_output

Currently, mctp_local_output only takes ownership of skb on success, and we may leak an skb if mctp_local_output fails in specific states; the skb ownership isn't transferred until the actual output routing occurs.

Instead, make mctp_local_output free the skb on all error paths up to the route action, so it always consumes the passed skb.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-27418"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-17T12:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mctp: take ownership of skb in mctp_local_output\n\nCurrently, mctp_local_output only takes ownership of skb on success, and\nwe may leak an skb if mctp_local_output fails in specific states; the\nskb ownership isn\u0027t transferred until the actual output routing occurs.\n\nInstead, make mctp_local_output free the skb on all error paths up to\nthe route action, so it always consumes the passed skb.",
  "id": "GHSA-7xf4-wr6x-3r95",
  "modified": "2025-09-26T18:31:17Z",
  "published": "2024-05-17T12:31:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27418"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3773d65ae5154ed7df404b050fd7387a36ab5ef3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3c8fa54e904b0ddb52a08cc2d8ac239054f61fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a639441c880ac479495e5ab37e3c29f21ae5771b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbebc55ceacef1fc0651e80e0103cc184552fc68"
    }
  ],
  "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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