FKIE_CVE-2024-50174

Vulnerability from fkie_nvd - Published: 2024-11-08 06:15 - Updated: 2025-10-01 21:15
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix race when converting group handle to group object XArray provides it's own internal lock which protects the internal array when entries are being simultaneously added and removed. However there is still a race between retrieving the pointer from the XArray and incrementing the reference count. To avoid this race simply hold the internal XArray lock when incrementing the reference count, this ensures there cannot be a racing call to xa_erase().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44742138d151c3a945460ae7beff8ae45ac0bf58Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a585d553c11965332d7a2d74e79ef92a42bfc87Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cac075706f298948898b1f63e81709df42afa75dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix race when converting group handle to group object\n\nXArray provides it\u0027s own internal lock which protects the internal array\nwhen entries are being simultaneously added and removed. However there\nis still a race between retrieving the pointer from the XArray and\nincrementing the reference count.\n\nTo avoid this race simply hold the internal XArray lock when\nincrementing the reference count, this ensures there cannot be a racing\ncall to xa_erase()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/panthor: Se corrige la ejecuci\u00f3n al convertir el identificador de grupo en un objeto de grupo XArray proporciona su propio bloqueo interno que protege la matriz interna cuando se agregan y eliminan entradas simult\u00e1neamente. Sin embargo, todav\u00eda hay una ejecuci\u00f3n entre recuperar el puntero de XArray e incrementar el recuento de referencias. Para evitar esta ejecuci\u00f3n, simplemente mantenga el bloqueo interno de XArray al incrementar el recuento de referencias, esto garantiza que no pueda haber una llamada de ejecuci\u00f3n a xa_erase()."
    }
  ],
  "id": "CVE-2024-50174",
  "lastModified": "2025-10-01T21:15:58.050",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.