ghsa-r8vm-2j4g-7jq3
Vulnerability from github
Published
2024-12-04 15:31
Modified
2025-11-04 00:32
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/mlx5e: kTLS, Fix incorrect page refcounting

The kTLS tx handling code is using a mix of get_page() and page_ref_inc() APIs to increment the page reference. But on the release path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.

This is an issue when using pages from large folios: the get_page() references are stored on the folio page while the page_ref_inc() references are stored directly in the given page. On release the folio page will be dereferenced too many times.

This was found while doing kTLS testing with sendfile() + ZC when the served file was read from NFS on a kernel with NFS large folios support (commit 49b29a573da8 ("nfs: add support for large folios")).

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53138"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-04T15:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: kTLS, Fix incorrect page refcounting\n\nThe kTLS tx handling code is using a mix of get_page() and\npage_ref_inc() APIs to increment the page reference. But on the release\npath (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.\n\nThis is an issue when using pages from large folios: the get_page()\nreferences are stored on the folio page while the page_ref_inc()\nreferences are stored directly in the given page. On release the folio\npage will be dereferenced too many times.\n\nThis was found while doing kTLS testing with sendfile() + ZC when the\nserved file was read from NFS on a kernel with NFS large folios support\n(commit 49b29a573da8 (\"nfs: add support for large folios\")).",
  "id": "GHSA-r8vm-2j4g-7jq3",
  "modified": "2025-11-04T00:32:09Z",
  "published": "2024-12-04T15:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53138"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2723e8b2cbd486cb96e5a61b22473f7fd62e18df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "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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