CVE-2026-89799

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the BPF subsystem where preemption is not properly disabled during the execution of the bpf get stackid() function. Specifically, the get perf callchain() call requires preemption to be disabled, and this state must be maintained while accessing the returned trace entries buffer to ensure data consistency and system stability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.