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CVE-2024-42140

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 i…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.15.82 before 5.15.163
from 6.0.12 before 6.1.98
from 6.2 before 6.6.39
from 6.7 before 6.9.9

Weakness classification

CWE-667

References