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CVE-2025-21841cpufreq/amd-pstate: Fix cpufreq_policy ref counting

Description

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.

Timeline

  1. ID reserved

    By Linux

  2. · 2 months later

    Published

  3. · 14 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-21841, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.19% · top 91% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected 45722e777fd99ea863fe653c1838d39f678506e2 – < 56e6976793c0fcf1638aa534242408ab4e4ca705
    • affected 45722e777fd99ea863fe653c1838d39f678506e2 – < 28e4c515cf644c621800bd97841757fd49891ba4
    • affected 45722e777fd99ea863fe653c1838d39f678506e2 – < 3ace20038e19f23fe73259513f1f08d4bf1a3c83

  • Linux · Linux

    • affected 6.12
    • unaffected < 6.12
    • unaffected 6.12.16 – ≤ 6.12.*
    • unaffected 6.13.4 – ≤ 6.13.*
    • unaffected 6.14 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .