Preemption Issue in Linux Kernel Affects System Stability

CVE-2026-43482

What is CVE-2026-43482?

A vulnerability in the Linux kernel involves preemption between key functions that manage task execution. Specifically, if the execution claim is made and the subsequent helper work is not initiated due to task preemption, it can lead to a failure in task dispatching. The situation triggers a state where the system appears to wedge, resulting in operational disruptions. The resolution involves disabling preemption around critical functions to ensure that the helper work is always queued, maintaining system stability and preventing potential downtime.

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