PT-2026-98624

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the drain pebs function can be reentered. Because the PEBS buffer is shared by all events on a CPU, reentry can lead to an instance observing...

Linux Kernel Security Vulnerabilities

The Linux kernel versions from 6.3.7 to 6.4 and 6.4 itself have security vulnerabilities. These vulnerabilities stem from the fact that the PEBS buffer is shared among all events on the CPU. The function drainpebs is reentrant; during reentry, expired buffer states may be observed, and...