{"id":"CVE-2026-97904","title":"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 di…","summary":"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 di…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < dc11263cb05ed519758fd135fe08d611bad1f241","Linux >= 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 27c9b491bf7604e83b50c3bbfa18a30266ff345f","Linux >= 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 2cee937f779f69b195b37bbec1e888da9bfe9d58","Linux >= 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 3e5d1bf4bd687beb2cb4e32a07af695455925588","Linux 4.2"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:17.293","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97904","references":[{"url":"https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.894Z","slug":"CVE-2026-97904","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}