{"id":"CVE-2025-21841","state":"PUBLISHED","title":"cpufreq/amd-pstate: Fix cpufreq_policy ref counting","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq/amd-pstate: Fix cpufreq_policy ref counting\n\namd_pstate_update_limits() takes a cpufreq_policy reference but doesn't\ndecrement the refcount in one of the exit paths, fix that.","publishedAt":"2025-03-07T09:09:59.587Z","updatedAt":"2026-05-11T21:07:32.485Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"56e6976793c0fcf1638aa534242408ab4e4ca705","versionType":"git"},{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"28e4c515cf644c621800bd97841757fd49891ba4","versionType":"git"},{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"3ace20038e19f23fe73259513f1f08d4bf1a3c83","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.16","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.4","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate.c"]}],"references":["https://git.kernel.org/stable/c/56e6976793c0fcf1638aa534242408ab4e4ca705","https://git.kernel.org/stable/c/28e4c515cf644c621800bd97841757fd49891ba4","https://git.kernel.org/stable/c/3ace20038e19f23fe73259513f1f08d4bf1a3c83"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21841.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21841","state":"PUBLISHED","datePublished":"2025-03-07T09:09:59.587Z","dateUpdated":"2026-05-11T21:07:32.485Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.777Z"},"containers":{"cna":{"title":"cpufreq/amd-pstate: Fix cpufreq_policy ref counting","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq/amd-pstate: Fix cpufreq_policy ref counting\n\namd_pstate_update_limits() takes a cpufreq_policy reference but doesn't\ndecrement the refcount in one of the exit paths, fix that."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"56e6976793c0fcf1638aa534242408ab4e4ca705","versionType":"git"},{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"28e4c515cf644c621800bd97841757fd49891ba4","versionType":"git"},{"version":"45722e777fd99ea863fe653c1838d39f678506e2","status":"affected","lessThan":"3ace20038e19f23fe73259513f1f08d4bf1a3c83","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.16","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.4","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/amd-pstate.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/56e6976793c0fcf1638aa534242408ab4e4ca705"},{"url":"https://git.kernel.org/stable/c/28e4c515cf644c621800bd97841757fd49891ba4"},{"url":"https://git.kernel.org/stable/c/3ace20038e19f23fe73259513f1f08d4bf1a3c83"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:07:32.485Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}