CVE-2026-31528

A flaw was found in the Linux kernel's performance monitoring unit PMU subsystem. This vulnerability occurs when handling performance event groups, specifically during the rollback of groupschedin operations. An issue with how inherited contexts use event pointers can lead to an out-of-bounds...

PT-2026-34433

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bound memory access can occur in the x86 pmu del function when group sched in fails and requires a rollback. This happens because the inherit function uses event-pmu to clone...

Linux Distros Unpatched Vulnerability : CVE-2026-31528

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf: Make sure to use pmuctx-pmu for groups Oliver reported that x86pmudel ended up doing an out- of-bound memory access when groupschedin fails and needs to...