CVE-2026-97904

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/dc11263cb05ed519758fd135fe08d611bad1f241