{"api_version":"1","generated_at":"2026-11-08T09:42:00+00:00","cve":"CVE-2025-40130","urls":{"html":"https://cve.report/CVE-2025-40130","api":"https://cve.report/api/cve/CVE-2025-40130.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-40130","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-40130"},"summary":{"title":"scsi: ufs: core: Fix data race in CPU latency PM QoS request handling","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix data race in CPU latency PM QoS request handling\n\nThe cpu_latency_qos_add/remove/update_request interfaces lack internal\nsynchronization by design, requiring the caller to ensure thread safety.\nThe current implementation relies on the 'pm_qos_enabled' flag, which is\ninsufficient to prevent concurrent access and cannot serve as a proper\nsynchronization mechanism. This has led to data races and list\ncorruption issues.\n\nA typical race condition call trace is:\n\n[Thread A]\nufshcd_pm_qos_exit()\n  --> cpu_latency_qos_remove_request()\n    --> cpu_latency_qos_apply();\n      --> pm_qos_update_target()\n        --> plist_del              <--(1) delete plist node\n    --> memset(req, 0, sizeof(*req));\n  --> hba->pm_qos_enabled = false;\n\n[Thread B]\nufshcd_devfreq_target\n  --> ufshcd_devfreq_scale\n    --> ufshcd_scale_clks\n      --> ufshcd_pm_qos_update     <--(2) pm_qos_enabled is true\n        --> cpu_latency_qos_update_request\n          --> pm_qos_update_target\n            --> plist_del          <--(3) plist node use-after-free\n\nIntroduces a dedicated mutex to serialize PM QoS operations, preventing\ndata races and ensuring safe access to PM QoS resources, including sysfs\ninterface reads.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-11-12 11:15:42","updated_at":"2026-10-21 13:18:19"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d9df61afb8d23c475f1be3c714da2c34c156ab01","name":"https://git.kernel.org/stable/c/d9df61afb8d23c475f1be3c714da2c34c156ab01","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eee1b13526b8f1e6a2402973d95f9fa854771f57","name":"https://git.kernel.org/stable/c/eee1b13526b8f1e6a2402973d95f9fa854771f57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/79dde5f7dc7c038eec903745dc1550cd4139980e","name":"https://git.kernel.org/stable/c/79dde5f7dc7c038eec903745dc1550cd4139980e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-40130","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40130","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2777e73fc154e2e87233bdcc0e2402b33815198e eee1b13526b8f1e6a2402973d95f9fa854771f57 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2777e73fc154e2e87233bdcc0e2402b33815198e d9df61afb8d23c475f1be3c714da2c34c156ab01 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2777e73fc154e2e87233bdcc0e2402b33815198e 79dde5f7dc7c038eec903745dc1550cd4139980e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.114 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17.3 6.17.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"40130","cve":"CVE-2025-40130","epss":"0.002000000","percentile":"0.092030000","score_date":"2026-10-19","updated_at":"2026-10-20 00:13:48"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/ufs/core/ufs-sysfs.c","drivers/ufs/core/ufshcd.c","include/ufs/ufshcd.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eee1b13526b8f1e6a2402973d95f9fa854771f57","status":"affected","version":"2777e73fc154e2e87233bdcc0e2402b33815198e","versionType":"git"},{"lessThan":"d9df61afb8d23c475f1be3c714da2c34c156ab01","status":"affected","version":"2777e73fc154e2e87233bdcc0e2402b33815198e","versionType":"git"},{"lessThan":"79dde5f7dc7c038eec903745dc1550cd4139980e","status":"affected","version":"2777e73fc154e2e87233bdcc0e2402b33815198e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/ufs/core/ufs-sysfs.c","drivers/ufs/core/ufshcd.c","include/ufs/ufshcd.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.114","versionType":"semver"},{"lessThanOrEqual":"6.17.*","status":"unaffected","version":"6.17.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.18","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.114","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17.3","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18","versionStartIncluding":"6.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix data race in CPU latency PM QoS request handling\n\nThe cpu_latency_qos_add/remove/update_request interfaces lack internal\nsynchronization by design, requiring the caller to ensure thread safety.\nThe current implementation relies on the 'pm_qos_enabled' flag, which is\ninsufficient to prevent concurrent access and cannot serve as a proper\nsynchronization mechanism. This has led to data races and list\ncorruption issues.\n\nA typical race condition call trace is:\n\n[Thread A]\nufshcd_pm_qos_exit()\n  --> cpu_latency_qos_remove_request()\n    --> cpu_latency_qos_apply();\n      --> pm_qos_update_target()\n        --> plist_del              <--(1) delete plist node\n    --> memset(req, 0, sizeof(*req));\n  --> hba->pm_qos_enabled = false;\n\n[Thread B]\nufshcd_devfreq_target\n  --> ufshcd_devfreq_scale\n    --> ufshcd_scale_clks\n      --> ufshcd_pm_qos_update     <--(2) pm_qos_enabled is true\n        --> cpu_latency_qos_update_request\n          --> pm_qos_update_target\n            --> plist_del          <--(3) plist node use-after-free\n\nIntroduces a dedicated mutex to serialize PM QoS operations, preventing\ndata races and ensuring safe access to PM QoS resources, including sysfs\ninterface reads."}],"providerMetadata":{"dateUpdated":"2026-10-21T12:37:48.510Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/eee1b13526b8f1e6a2402973d95f9fa854771f57"},{"url":"https://git.kernel.org/stable/c/d9df61afb8d23c475f1be3c714da2c34c156ab01"},{"url":"https://git.kernel.org/stable/c/79dde5f7dc7c038eec903745dc1550cd4139980e"}],"title":"scsi: ufs: core: Fix data race in CPU latency PM QoS request handling","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-40130","datePublished":"2025-11-12T10:23:21.605Z","dateReserved":"2025-04-16T07:20:57.170Z","dateUpdated":"2026-10-21T12:37:48.510Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-11-12 11:15:42","lastModifiedDate":"2026-10-21 13:18:19","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"40130","Ordinal":"1","Title":"scsi: ufs: core: Fix data race in CPU latency PM QoS request han","CVE":"CVE-2025-40130","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"40130","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix data race in CPU latency PM QoS request handling\n\nThe cpu_latency_qos_add/remove/update_request interfaces lack internal\nsynchronization by design, requiring the caller to ensure thread safety.\nThe current implementation relies on the 'pm_qos_enabled' flag, which is\ninsufficient to prevent concurrent access and cannot serve as a proper\nsynchronization mechanism. This has led to data races and list\ncorruption issues.\n\nA typical race condition call trace is:\n\n[Thread A]\nufshcd_pm_qos_exit()\n  --> cpu_latency_qos_remove_request()\n    --> cpu_latency_qos_apply();\n      --> pm_qos_update_target()\n        --> plist_del              <--(1) delete plist node\n    --> memset(req, 0, sizeof(*req));\n  --> hba->pm_qos_enabled = false;\n\n[Thread B]\nufshcd_devfreq_target\n  --> ufshcd_devfreq_scale\n    --> ufshcd_scale_clks\n      --> ufshcd_pm_qos_update     <--(2) pm_qos_enabled is true\n        --> cpu_latency_qos_update_request\n          --> pm_qos_update_target\n            --> plist_del          <--(3) plist node use-after-free\n\nIntroduces a dedicated mutex to serialize PM QoS operations, preventing\ndata races and ensuring safe access to PM QoS resources, including sysfs\ninterface reads.","Type":"Description","Title":"scsi: ufs: core: Fix data race in CPU latency PM QoS request han"}]}}}