Vulnerability Key Information Vulnerability Title: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() Vulnerability Description: - in is called too early, causing issues when later calling and indirectly accessing the policy object via the QoS request object. This could theoretically lead to a crash during CPU hotplug operations (currently observed only in virtual environments, but officially supported). - Fix: Modify to defer the release of the policy object reference. Related File: drivers/cpufreq/intel_pstate.c Number of Affected Files: 1 file modified, 5 insertions, 3 deletions Key Code Changes: Related Commit Information: - Fixes frequency constraint issue introduced by commit - Signed-off-by: Rafael J. Wysocki and Greg Kroah-Hartman - Reviewed-by: Zihuan Zhang - Link: https://patch.msgid.link/2255671.irdbgypaU6@rafael.j.wysocki Committer: Rafael J. Wysocki, Commit Date: 2025-09-05 15:52:03 +0200 Pusher: Greg Kroah-Hartman, Push Date: 2025-10-19 16:21:44 +0200 ``` This description clearly summarizes the context, fix, and affected code sections of the vulnerability.