fkie_cve-2022-48787
Vulnerability from fkie_nvd
Published
2024-07-16 12:15
Modified
2024-11-21 07:34
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: iwlwifi: fix use-after-free If no firmware was present at all (or, presumably, all of the firmware files failed to parse), we end up unbinding by calling device_release_driver(), which calls remove(), which then in iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However the new code I added will still erroneously access it after it was freed. Set 'failure=false' in this case to avoid the access, all data was already freed anyway.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/008508c16af0087cda0394e1ac6f0493b01b6063Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/494de920d98f125b099f27a2d274850750aff957Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d6475179b85a83186ccce59cdc359d4f07d0bcbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9958b9cbb22145295ee1ffaea0904c383da2c05dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bea2662e7818e15d7607d17d57912ac984275d94Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3b98fe36f8a06ce654049540773256ab59cb53dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ddd46059f7d99119b62d44c519df7a79f2e6a515Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/008508c16af0087cda0394e1ac6f0493b01b6063Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/494de920d98f125b099f27a2d274850750aff957Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7d6475179b85a83186ccce59cdc359d4f07d0bcbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9958b9cbb22145295ee1ffaea0904c383da2c05dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bea2662e7818e15d7607d17d57912ac984275d94Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d3b98fe36f8a06ce654049540773256ab59cb53dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ddd46059f7d99119b62d44c519df7a79f2e6a515Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niwlwifi: fix use-after-free\n\nIf no firmware was present at all (or, presumably, all of the\nfirmware files failed to parse), we end up unbinding by calling\ndevice_release_driver(), which calls remove(), which then in\niwlwifi calls iwl_drv_stop(), freeing the \u0027drv\u0027 struct. However\nthe new code I added will still erroneously access it after it\nwas freed.\n\nSet \u0027failure=false\u0027 in this case to avoid the access, all data\nwas already freed anyway."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: iwlwifi: corrige el use-after-free Si no hab\u00eda ning\u00fan firmware presente (o, presumiblemente, no se pudieron analizar todos los archivos de firmware), terminamos desvincul\u00e1ndolo llamando a device_release_driver( ), que llama a remove(), que luego en iwlwifi llama a iwl_drv_stop(), liberando la estructura \u0027drv\u0027. Sin embargo, el nuevo c\u00f3digo que agregu\u00e9 seguir\u00e1 accediendo err\u00f3neamente a \u00e9l despu\u00e9s de que se haya liberado. Establezca \u0027failure=false\u0027 en este caso para evitar el acceso; todos los datos ya se liberaron de todos modos."
    }
  ],
  "id": "CVE-2022-48787",
  "lastModified": "2024-11-21T07:34:01.340",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-07-16T12:15:03.633",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-416"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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