CVE-2024-42127

{"id": "CVE-2024-42127", "cveTags": [], "metrics": {}, "published": "2024-07-30T08:15:04.820", "references": [{"url": "https://git.kernel.org/stable/c/04d531b9a1875846d4f89953b469ad463aa7a770", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0a487e977cb8897ae4c51ecd34bbaa2b005266c9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0d60c43df59ef01c08dc7b0c45495178f9d05a13", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/17fe8b75aaf0bb1bdc31368963446b421c22d0af", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/25d0d9b83d855cbc5d5aa5ae3cd79d55ea0c84a8", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a6683c690bbfd1f371510cb051e8fa49507f3f5e", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b5daf9217a50636a969bc1965f827878aeb09ffe", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/lima: fix shared irq handling on driver remove\n\nlima uses a shared interrupt, so the interrupt handlers must be prepared\nto be called at any time. At driver removal time, the clocks are\ndisabled early and the interrupts stay registered until the very end of\nthe remove process due to the devm usage.\nThis is potentially a bug as the interrupts access device registers\nwhich assumes clocks are enabled. A crash can be triggered by removing\nthe driver in a kernel with CONFIG_DEBUG_SHIRQ enabled.\nThis patch frees the interrupts at each lima device finishing callback\nso that the handlers are already unregistered by the time we fully\ndisable clocks."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/lima: arregla el manejo de irq compartido en el controlador elimina lima usa una interrupci\u00f3n compartida, por lo que los controladores de interrupciones deben estar preparados para ser llamados en cualquier momento. En el momento de la eliminaci\u00f3n del controlador, los relojes se desactivan antes de tiempo y las interrupciones permanecen registradas hasta el final del proceso de eliminaci\u00f3n debido al uso del devm. Esto es potencialmente un error ya que las interrupciones acceden a los registros del dispositivo, lo que supone que los relojes est\u00e1n habilitados. Se puede provocar un bloqueo eliminando el controlador en un kernel con CONFIG_DEBUG_SHIRQ habilitado. Este parche libera las interrupciones en cada dispositivo Lima que finaliza la devoluci\u00f3n de llamada para que los controladores ya est\u00e9n dados de baja cuando deshabilitemos completamente los relojes."}], "lastModified": "2024-07-30T13:32:45.943", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}