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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
2fc3384dc75bf7333384c7a16d12c796f61c3f56 affected < dc11263cb05ed519758fd135fe08d611bad1f241
2fc3384dc75bf7333384c7a16d12c796f61c3f56 affected < 27c9b491bf7604e83b50c3bbfa18a30266ff345f
2fc3384dc75bf7333384c7a16d12c796f61c3f56 affected < 2cee937f779f69b195b37bbec1e888da9bfe9d58
2fc3384dc75bf7333384c7a16d12c796f61c3f56 affected < 3e5d1bf4bd687beb2cb4e32a07af695455925588
Linux Linux affected
Version Status Constraints
4.2 affected —
0 unaffected < 4.2
6.12.111 unaffected ≤ 6.12.*
6.18.53 unaffected ≤ 6.18.*
7.2.7 unaffected ≤ 7.2.*
7.3-rc3 unaffected ≤ *

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Fixes

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Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f cve-icon cve-icon
https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58 cve-icon cve-icon
https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588 cve-icon cve-icon
https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241 cve-icon cve-icon
History

Fri, 25 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-665
CWE-823

Fri, 25 Sep 2026 10:30:00 +0000

Type Values Removed Values Added
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.
Title cpufreq: initialize policy rwsem before sysfs publication
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-25T10:22:30.444Z

Reserved: 2026-09-25T10:18:58.200Z

Link: CVE-2026-97904

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-25T11:17:17.293

Modified: 2026-09-25T11:17:17.293

Link: CVE-2026-97904

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T14:30:14Z

Weaknesses