cve-2024-43830
Vulnerability from cvelistv5
Published
2024-08-17 09:21
Modified
2024-09-15 17:53
Severity ?
EPSS score ?
Summary
leds: trigger: Unregister sysfs attributes before calling deactivate()
References
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"url": "https://git.kernel.org/stable/c/c3b7a650c8717aa89df318364609c86cbc040156"
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"url": "https://git.kernel.org/stable/c/d1415125b701ef13370e2761f691ec632a5eb93a"
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"url": "https://git.kernel.org/stable/c/3fb6a9d67cfd812a547ac73ec02e1077c26c640d"
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"url": "https://git.kernel.org/stable/c/c0dc9adf9474ecb7106e60e5472577375aedaed3"
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"title": "leds: trigger: Unregister sysfs attributes before calling deactivate()",
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"cveId": "CVE-2024-43830",
"datePublished": "2024-08-17T09:21:48.946Z",
"dateReserved": "2024-08-17T09:11:59.273Z",
"dateUpdated": "2024-09-15T17:53:53.073Z",
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-43830\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-17T10:15:08.857\",\"lastModified\":\"2024-08-19T12:59:59.177\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"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().\"},{\"lang\":\"es\",\"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().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0788a6f3523d3686a9eed5ea1e6fcce6841277b2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/09c1583f0e10c918855d6e7540a79461a353e5d6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3fb6a9d67cfd812a547ac73ec02e1077c26c640d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/734ba6437e80dfc780e9ee9d95f912392d12b5ea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c0dc9adf9474ecb7106e60e5472577375aedaed3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c3b7a650c8717aa89df318364609c86cbc040156\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cb8aa9d2a4c8a15d6a43ccf901ef3d094aa60374\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1415125b701ef13370e2761f691ec632a5eb93a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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