CVE-2026-97904

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97904", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:18:58.200Z", "datePublished": "2026-09-25T10:22:30.444Z", "dateUpdated": "2026-10-19T09:10:30.506Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:10:30.506Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: initialize policy rwsem before sysfs publication\n\ncpufreq_policy_alloc() initializes policy->rwsem after\nkobject_init_and_add() has created the policy sysfs directory and its\ndefault attributes. A sysfs access can therefore reach a policy callback\nbefore the semaphore has been initialized.\n\nInitialize policy->rwsem before publishing the policy kobject so sysfs\ncallbacks always see an initialized semaphore."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cpufreq/cpufreq.c"], "versions": [{"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "c9d8435814f2ac533c40fe3f35d94235bc3a9443", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "82a54923700da5de83ce2b26c0b43f6b5005c8f1", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "b14987a0f73777644099f47f01aba3b0f9dc6c27", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "dc11263cb05ed519758fd135fe08d611bad1f241", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "27c9b491bf7604e83b50c3bbfa18a30266ff345f", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "2cee937f779f69b195b37bbec1e888da9bfe9d58", "status": "affected", "versionType": "git"}, {"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "lessThan": "3e5d1bf4bd687beb2cb4e32a07af695455925588", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cpufreq/cpufreq.c"], "versions": [{"version": "4.2", "status": "affected"}, {"version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c9d8435814f2ac533c40fe3f35d94235bc3a9443"}, {"url": "https://git.kernel.org/stable/c/82a54923700da5de83ce2b26c0b43f6b5005c8f1"}, {"url": "https://git.kernel.org/stable/c/b14987a0f73777644099f47f01aba3b0f9dc6c27"}, {"url": "https://git.kernel.org/stable/c/b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a"}, {"url": "https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241"}, {"url": "https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f"}, {"url": "https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58"}, {"url": "https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588"}], "title": "cpufreq: initialize policy rwsem before sysfs publication", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/cpufreq/cpufreq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c9d8435814f2ac533c40fe3f35d94235bc3a9443", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "82a54923700da5de83ce2b26c0b43f6b5005c8f1", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "b14987a0f73777644099f47f01aba3b0f9dc6c27", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "dc11263cb05ed519758fd135fe08d611bad1f241", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "27c9b491bf7604e83b50c3bbfa18a30266ff345f", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "2cee937f779f69b195b37bbec1e888da9bfe9d58", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}, {"lessThan": "3e5d1bf4bd687beb2cb4e32a07af695455925588", "status": "affected", "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/cpufreq/cpufreq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"lessThan": "4.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: initialize policy rwsem before sysfs publication\n\ncpufreq_policy_alloc() initializes policy->rwsem after\nkobject_init_and_add() has created the policy sysfs directory and its\ndefault attributes. A sysfs access can therefore reach a policy callback\nbefore the semaphore has been initialized.\n\nInitialize policy->rwsem before publishing the policy kobject so sysfs\ncallbacks always see an initialized semaphore."}], "id": "CVE-2026-97904", "lastModified": "2026-10-19T10:17:40.750", "metrics": {}, "published": "2026-09-25T11:17:17.293", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82a54923700da5de83ce2b26c0b43f6b5005c8f1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b14987a0f73777644099f47f01aba3b0f9dc6c27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9d8435814f2ac533c40fe3f35d94235bc3a9443"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: cpufreq: initialize policy rwsem before sysfs publication", "id": "2541241", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541241"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-908", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncpufreq: initialize policy rwsem before sysfs publication\ncpufreq_policy_alloc() initializes policy->rwsem after\nkobject_init_and_add() has created the policy sysfs directory and its\ndefault attributes. A sysfs access can therefore reach a policy callback\nbefore the semaphore has been initialized.\nInitialize policy->rwsem before publishing the policy kobject so sysfs\ncallbacks always see an initialized semaphore.", "A flaw was found in the Linux kernel's CPU frequency scaling (cpufreq) subsystem. A race condition occurs because an internal synchronization lock is initialized only after its system filesystem (sysfs) entries are made accessible. A local user accessing these sysfs attributes during policy allocation could interact with the uninitialized lock, leading to a kernel crash and a Denial of Service (DoS)."], "name": "CVE-2026-97904", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97904\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97904\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97904.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2fc3384dc75bf7333384c7a16d12c796f61c3f56,dc11263cb05ed519758fd135fe08d611bad1f241)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2fc3384dc75bf7333384c7a16d12c796f61c3f56,27c9b491bf7604e83b50c3bbfa18a30266ff345f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2fc3384dc75bf7333384c7a16d12c796f61c3f56,2cee937f779f69b195b37bbec1e888da9bfe9d58)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2fc3384dc75bf7333384c7a16d12c796f61c3f56,3e5d1bf4bd687beb2cb4e32a07af695455925588)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-25T14:30:14.460717+00:00", "updated": "2026-10-01T09:45:04.956727+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-908"]}