fkie_cve-2024-42127
Vulnerability from fkie_nvd
Published
2024-07-30 08:15
Modified
2024-11-21 09:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/lima: fix shared irq handling on driver remove
lima uses a shared interrupt, so the interrupt handlers must be prepared
to be called at any time. At driver removal time, the clocks are
disabled early and the interrupts stay registered until the very end of
the remove process due to the devm usage.
This is potentially a bug as the interrupts access device registers
which assumes clocks are enabled. A crash can be triggered by removing
the driver in a kernel with CONFIG_DEBUG_SHIRQ enabled.
This patch frees the interrupts at each lima device finishing callback
so that the handlers are already unregistered by the time we fully
disable clocks.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"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."
}
],
"id": "CVE-2024-42127",
"lastModified": "2024-11-21T09:33:39.563",
"metrics": {},
"published": "2024-07-30T08:15:04.820",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"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": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/04d531b9a1875846d4f89953b469ad463aa7a770"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/0a487e977cb8897ae4c51ecd34bbaa2b005266c9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/0d60c43df59ef01c08dc7b0c45495178f9d05a13"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/17fe8b75aaf0bb1bdc31368963446b421c22d0af"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/25d0d9b83d855cbc5d5aa5ae3cd79d55ea0c84a8"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/a6683c690bbfd1f371510cb051e8fa49507f3f5e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/b5daf9217a50636a969bc1965f827878aeb09ffe"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.