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 interrupt context, the machine_kexec_mask_interrupts() function will trigger a deadlock while…
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692Mailing List, Patch
- https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943cMailing List, Patch
- https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155Mailing List, Patch
- https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073dMailing List, Patch
- https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4Mailing List, Patch
- https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692Mailing List, Patch
- https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943cMailing List, Patch
- https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155Mailing List, Patch
- https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073dMailing List, Patch
- https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.