ghsa-x34g-xjxv-fc48
Vulnerability from github
Published
2024-12-02 15:31
Modified
2024-12-11 21:31
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:

mptcp: cope racing subflow creation in mptcp_rcv_space_adjust

Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs.

A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones.

Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53122"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-02T14:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: cope racing subflow creation in mptcp_rcv_space_adjust\n\nAdditional active subflows - i.e. created by the in kernel path\nmanager - are included into the subflow list before starting the\n3whs.\n\nA racing recvmsg() spooling data received on an already established\nsubflow would unconditionally call tcp_cleanup_rbuf() on all the\ncurrent subflows, potentially hitting a divide by zero error on\nthe newly created ones.\n\nExplicitly check that the subflow is in a suitable state before\ninvoking tcp_cleanup_rbuf().",
  "id": "GHSA-x34g-xjxv-fc48",
  "modified": "2024-12-11T21:31:57Z",
  "published": "2024-12-02T15:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53122"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24995851d58c4a205ad0ffa7b2f21e479a9c8527"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aad6412c63baa39dd813e81f16a14d976b3de2e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce7356ae35943cc6494cc692e62d51a734062b7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff825ab2f455299c0c7287550915a8878e2a66e0"
    }
  ],
  "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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