CVE-2024-46848 is a vulnerability in the Linux kernel's perf subsystem for Intel Haswell CPUs. It involves improper handling of the event period values for performance monitoring counters, triggering hardware errata HSW11 and HSW143. The issue causes warnings such as 'irq loop stuck' and may lead to performance monitoring interrupts taking too long, potentially impacting system stability. The vulnerability has a medium severity with an impact on availability but no confidentiality or integrity loss reported.