Bug 2350588 (CVE-2025-21841)

Summary: CVE-2025-21841 kernel: cpufreq/amd-pstate: Fix cpufreq_policy ref counting
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2025-03-07 10:01:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cpufreq/amd-pstate: Fix cpufreq_policy ref counting

amd_pstate_update_limits() takes a cpufreq_policy reference but doesn't
decrement the refcount in one of the exit paths, fix that.
Comment 1 Michal Findra 2025-03-07 15:27:27 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025030707-CVE-2025-21841-1182@gregkh/T