CVE-2026-64372 cpufreq: pcc: fix use-after-free and double free in _OSC evaluation

In the Linux kernel, the following vulnerability has been resolved: cpufreq: pcc: fix use-after-free and double free in OSC evaluation pcccpufreqdoosc calls acpievaluateobject twice for the two-phase OSC negotiation. Between the two calls it freed output.pointer but left output.length unchanged...

CVE-2026-64372

Summary: CVE-2026-64372 affects the Linux kernel cpufreq/pcc OSC evaluation path. The defect arises in pcc_cpufreq_do_osc(), which calls acpi_evaluate_object() twice for the two‑phase _OSC negotiation. Between the calls, output.pointer is freed while output.length remains, causing the second call...

Linux Distros Unpatched Vulnerability : CVE-2026-64372

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cpufreq: pcc: fix use-after-free and double free in OSC evaluation pcccpufreqdoosc calls acpievaluateobject twice for the two-phase OSC negotiation. Between the...

PT-2026-64593

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free and double free issue exists in the pcc cpufreq do osc function during the two-phase OSC negotiation. The function calls acpi evaluate object twice; however, after the...