CVE-2024-42140

medium

Description

In the Linux kernel, the following vulnerability has been resolved: riscv: kexec: Avoid deadlock in kexec crash path If the kexec crash code is called in the interrupt context, the machine_kexec_mask_interrupts() function will trigger a deadlock while trying to acquire the irqdesc spinlock and then deactivate irqchip in irq_set_irqchip_state() function. Unlike arm64, riscv only requires irq_eoi handler to complete EOI and keeping irq_set_irqchip_state() will only leave this possible deadlock without any use. So we simply remove it.

References

https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4

https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073d

https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155

https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943c

https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692

Details

Source: Mitre, NVD

Published: 2024-07-30

Updated: 2024-08-23

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium