FKIE_CVE-2024-43830

Vulnerability from fkie_nvd - Published: 2024-08-17 10:15 - Updated: 2025-11-03 22:18
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: leds: trigger: Unregister sysfs attributes before calling deactivate() Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate() callback and freed by the deactivate() callback. Calling device_remove_groups() after calling deactivate() leaves a window where the sysfs attributes show/store functions could be called after deactivation and then operate on the just freed trigger-data. Move the device_remove_groups() call to before deactivate() to close this race window. This also makes the deactivation path properly do things in reverse order of the activation path which calls the activate() callback before calling device_add_groups().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0788a6f3523d3686a9eed5ea1e6fcce6841277b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09c1583f0e10c918855d6e7540a79461a353e5d6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3fb6a9d67cfd812a547ac73ec02e1077c26c640dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/734ba6437e80dfc780e9ee9d95f912392d12b5eaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0dc9adf9474ecb7106e60e5472577375aedaed3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c3b7a650c8717aa89df318364609c86cbc040156Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb8aa9d2a4c8a15d6a43ccf901ef3d094aa60374Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1415125b701ef13370e2761f691ec632a5eb93aPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nleds: trigger: Unregister sysfs attributes before calling deactivate()\n\nTriggers which have trigger specific sysfs attributes typically store\nrelated data in trigger-data allocated by the activate() callback and\nfreed by the deactivate() callback.\n\nCalling device_remove_groups() after calling deactivate() leaves a window\nwhere the sysfs attributes show/store functions could be called after\ndeactivation and then operate on the just freed trigger-data.\n\nMove the device_remove_groups() call to before deactivate() to close\nthis race window.\n\nThis also makes the deactivation path properly do things in reverse order\nof the activation path which calls the activate() callback before calling\ndevice_add_groups()."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: leds: trigger: Anular el registro de los atributos sysfs antes de llamar a desactivar() Los activadores que tienen atributos sysfs espec\u00edficos del activador normalmente almacenan datos relacionados en datos de activaci\u00f3n asignados por la devoluci\u00f3n de llamada enable() y liberados por el desactivar() devoluci\u00f3n de llamada. Llamar a device_remove_groups() despu\u00e9s de llamar a deactivate() deja una ventana donde los atributos sysfs muestran/almacenan funciones que se pueden llamar despu\u00e9s de la desactivaci\u00f3n y luego operar con los datos de activaci\u00f3n reci\u00e9n liberados. Mueva la llamada device_remove_groups() antes de desactivar() para cerrar esta ventana de ejecuci\u00f3n. Esto tambi\u00e9n hace que la ruta de desactivaci\u00f3n haga las cosas correctamente en orden inverso a la ruta de activaci\u00f3n que llama a la devoluci\u00f3n de llamada enable() antes de llamar a device_add_groups()."
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  "lastModified": "2025-11-03T22:18:08.730",
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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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.