Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: initialize policy rwsem before sysfs publication cpufreq_policy_alloc() initializes policy->rwsem after kobject_init_and_add() has created the policy sysfs directory and its default attributes. A sysfs access can therefore reach a policy callback before the semaphore has been initialized. Initialize policy->rwsem before publishing the policy kobject so sysfs callbacks always see an initialized semaphore.
References
- https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f
- https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58
- https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588
- https://git.kernel.org/stable/c/82a54923700da5de83ce2b26c0b43f6b5005c8f1
- https://git.kernel.org/stable/c/b14987a0f73777644099f47f01aba3b0f9dc6c27
- https://git.kernel.org/stable/c/b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a
- https://git.kernel.org/stable/c/c9d8435814f2ac533c40fe3f35d94235bc3a9443
- https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241
FAQ
What is CVE-2026-97904?
CVE-2026-97904 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: cpufreq: initialize policy rwsem before sysfs publication cpufreq_policy_alloc() initializes policy->rwsem after kobject_init_and_...
How severe is CVE-2026-97904?
CVSS scoring is not yet available for CVE-2026-97904. Check NVD for updates.
Is there a patch for CVE-2026-97904?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.