FKIE_CVE-2024-35831

Vulnerability from fkie_nvd - Published: 2024-05-17 14:15 - Updated: 2025-09-26 16:06
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: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67d1189d1095d471ed7fa426c7e384a7140a5dd7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/712e2c8415f55a4a4ddaa98a430b87f624109f69Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/67d1189d1095d471ed7fa426c7e384a7140a5dd7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/712e2c8415f55a4a4ddaa98a430b87f624109f69Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: Fix release of pinned pages when __io_uaddr_map fails\n\nLooking at the error path of __io_uaddr_map, if we fail after pinning\nthe pages for any reasons, ret will be set to -EINVAL and the error\nhandler won\u0027t properly release the pinned pages.\n\nI didn\u0027t manage to trigger it without forcing a failure, but it can\nhappen in real life when memory is heavily fragmented."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: corregida la liberaci\u00f3n de p\u00e1ginas fijadas cuando falla __io_uaddr_map. Mirando la ruta de error de __io_uaddr_map, si fallamos despu\u00e9s de fijar las p\u00e1ginas por cualquier motivo, ret se establecer\u00e1 en -EINVAL y el El controlador de errores no libera correctamente las p\u00e1ginas fijadas. No logr\u00e9 activarlo sin forzar un fallo, pero puede suceder en la vida real cuando la memoria est\u00e1 muy fragmentada."
    }
  ],
  "id": "CVE-2024-35831",
  "lastModified": "2025-09-26T16:06:17.070",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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": "2024-05-17T14:15:19.517",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
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}


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