Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15.82, < 5.15.163 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692Mailing ListPatch
- https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943cMailing ListPatch
- https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155Mailing ListPatch
- https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073dMailing ListPatch
- https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4Mailing ListPatch
- https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692Mailing ListPatch
- https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943cMailing ListPatch
- https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155Mailing ListPatch
- https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073dMailing ListPatch
- https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4Mailing ListPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
FAQ
What is CVE-2024-42140?
CVE-2024-42140 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_mas...
How severe is CVE-2024-42140?
CVE-2024-42140 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-42140?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.