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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 30, 2024
First seenJul 30, 2024
How to fix
Update
- linux linux_kernel5.15.163, 6.1.98, 6.6.39, 6.9.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.15.82 ≤ v < 5.15.163, 6.0.12 ≤ v < 6.1.98, 6.2 ≤ v < 6.6.39, 6.7 ≤ v < 6.9.9 | 5.15.163, 6.1.98, 6.6.39, 6.9.9 |
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