fkie_cve-2024-53138
Vulnerability from fkie_nvd
Published
2024-12-04 15:15
Modified
2024-12-14 21:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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")).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2723e8b2cbd486cb96e5a61b22473f7fd62e18dfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\"))."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: kTLS, Fix wrong page refcounting El c\u00f3digo de manejo de tx de kTLS usa una combinaci\u00f3n de API get_page() y page_ref_inc() para incrementar la referencia de p\u00e1gina. Pero en la ruta de lanzamiento (mlx5e_ktls_tx_handle_resync_dump_comp()), solo se usa put_page(). Este es un problema cuando se usan p\u00e1ginas de folios grandes: las referencias get_page() se almacenan en la p\u00e1gina del folio mientras que las referencias page_ref_inc() se almacenan directamente en la p\u00e1gina dada. En el lanzamiento, la p\u00e1gina del folio se desreferenciar\u00e1 demasiadas veces. Esto se encontr\u00f3 al hacer pruebas de kTLS con sendfile() + ZC cuando el archivo servido se ley\u00f3 desde NFS en un kernel con soporte para folios grandes de NFS (commit 49b29a573da8 (\"nfs: agregar soporte para folios grandes\"))."
    }
  ],
  "id": "CVE-2024-53138",
  "lastModified": "2024-12-14T21:15:38.140",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-12-04T15:15:13.983",
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  "vulnStatus": "Modified",
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}


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