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[ CVE-2026-97904 · Published 25 Sep 2026 ]

Vulnerability in Linux

Not scored yet EPSS <1%3 agency advisoriesNo fix listed yet

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • CERT-FRCERTFR-2026-AVI-1289

    Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French

    Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.

    CVE-2025-38237CVE-2025-39833CVE-2025-39925+1311 more CVEs
  • CERT-FRCERTFR-2026-AVI-1253

    Multiple vulnerabilities in the Debian Linux kernel Translated from French

    Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.

    CVE-2025-38237CVE-2025-39833CVE-2025-39925+1310 more CVEs
  • BSI CERT-BundWID-SEC-2026-3579

    Linux Kernel: Multiple vulnerabilities Translated from German

    CVE-2026-97615CVE-2026-97978CVE-2026-98127+590 more CVEs

[ References ]References