CVE-2024-46832 Information

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 on CPU local devices.

Reference

https://git.kernel.org/stable/c/d3ff0f98a52f0aafe35aa314d1c442f4318be3db https://git.kernel.org/stable/c/e6cd871627abbb459d0ff6521d6bb9cf9d9f7522 https://git.kernel.org/stable/c/b1d2051373bfc65371ce4ac8911ed984d0178c98 https://git.kernel.org/stable/c/32ee0520159f1e8c2d6597c19690df452c528f30 https://git.kernel.org/stable/c/189d3ed3b25beee26ffe2abed278208bece13f52 https://git.kernel.org/stable/c/50f2b98dc83de7809a5c5bf0ccf9af2e75c37c13