CVE-2026-97904 (GCVE-0-2026-97904)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:22 – Updated: 2026-10-19 09:10
VLAI
Title
cpufreq: initialize policy rwsem before sysfs publication
Summary
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < c9d8435814f2ac533c40fe3f35d94235bc3a9443 (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < 82a54923700da5de83ce2b26c0b43f6b5005c8f1 (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < b14987a0f73777644099f47f01aba3b0f9dc6c27 (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < dc11263cb05ed519758fd135fe08d611bad1f241 (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < 27c9b491bf7604e83b50c3bbfa18a30266ff345f (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < 2cee937f779f69b195b37bbec1e888da9bfe9d58 (git)
Affected: 2fc3384dc75bf7333384c7a16d12c796f61c3f56 , < 3e5d1bf4bd687beb2cb4e32a07af695455925588 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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        }
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: cpufreq: initialize policy rwsem before sysfs publication",
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      "cve": "CVE-2026-97904",
      "id": "CVE-2026-97904",
      "initial_release_date": "2026-10-01T00:38:29Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "4",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-97904",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-97904.json",
      "version": "4"
    }
  }
}



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