CVE-2024-42140

{"id": "CVE-2024-42140", "cveTags": [], "metrics": {}, "published": "2024-07-30T08:15:05.837", "references": [{"url": "https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: kexec: Avoid deadlock in kexec crash path\n\nIf the kexec crash code is called in the interrupt context, the\nmachine_kexec_mask_interrupts() function will trigger a deadlock while\ntrying to acquire the irqdesc spinlock and then deactivate irqchip in\nirq_set_irqchip_state() function.\n\nUnlike arm64, riscv only requires irq_eoi handler to complete EOI and\nkeeping irq_set_irqchip_state() will only leave this possible deadlock\nwithout any use. So we simply remove it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: kexec: evitar interbloqueo en la ruta de bloqueo de kexec Si se llama al c\u00f3digo de bloqueo de kexec en el contexto de interrupci\u00f3n, la funci\u00f3n machine_kexec_mask_interrupts() activar\u00e1 un interbloqueo al intentar adquirir el spinlock irqdesc y luego desactive irqchip en la funci\u00f3n irq_set_irqchip_state(). A diferencia de arm64, riscv solo requiere que el controlador irq_eoi complete la EOI y mantener irq_set_irqchip_state() solo dejar\u00e1 este posible punto muerto sin ning\u00fan uso. As\u00ed que simplemente lo eliminamos."}], "lastModified": "2024-07-30T13:32:45.943", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}