CVE-2026-97904
cpufreq: initialize policy rwsem before sysfs publication
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 25, 2026 |
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Affected Versions
Linux / Linux
2fc3384dc75bf7333384c7a16d12c796f61c3f56 < dc11263cb05ed519758fd135fe08d611bad1f241 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 27c9b491bf7604e83b50c3bbfa18a30266ff345f 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 2cee937f779f69b195b37bbec1e888da9bfe9d58 2fc3384dc75bf7333384c7a16d12c796f61c3f56 < 3e5d1bf4bd687beb2cb4e32a07af695455925588
Linux / Linux
4.2
References
git.kernel.org: https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241 git.kernel.org: https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f git.kernel.org: https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58 git.kernel.org: https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588