What’s Vulnerable › Vulnerabilities

CVE-2024-46832: MIPS: cevt-r4k: Don't call get_c0_compare_int if timer irq is installed

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-27 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: MIPS: cevt-r4k: Don't call get_c0_compare_int if timer irq is installed This avoids warning: [ 0.118053] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:283 Caused by get_c0_compare_int on secondary CPU. We also skipped saving IRQ number to struct clock_event_device *cd as it's never used by clockevent core, as per comments it's only meant for "non CPU local devices".

Affected products

• Linux kernel: before 5.10.226; from 5.11 before 5.15.167; from 5.16 before 6.1.110; from 6.2 before 6.6.51; from 6.7 before 6.10.10; 6.11-rc1, 6.11-rc2, 6.11-rc3, 6.11-rc4 — fixed in 5.10.226, 5.15.167, 6.1.110, 6.10.10, 6.6.51

How to fix

Upgrade to a fixed version: Linux kernel 5.10.226, 5.15.167, 6.1.110, 6.10.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/189d3ed3b25beee26ffe2abed278208bece13f52
• https://git.kernel.org/stable/c/32ee0520159f1e8c2d6597c19690df452c528f30
• https://git.kernel.org/stable/c/50f2b98dc83de7809a5c5bf0ccf9af2e75c37c13
• https://git.kernel.org/stable/c/b1d2051373bfc65371ce4ac8911ed984d0178c98
• https://git.kernel.org/stable/c/d3ff0f98a52f0aafe35aa314d1c442f4318be3db
• https://git.kernel.org/stable/c/e6cd871627abbb459d0ff6521d6bb9cf9d9f7522
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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