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cpufreq: initialize policy rwsem before sysfs publication

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-97904

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-97904

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "c9d8435814f2ac533c40fe3f35d94235bc3a9443",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "82a54923700da5de83ce2b26c0b43f6b5005c8f1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "b14987a0f73777644099f47f01aba3b0f9dc6c27",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "dc11263cb05ed519758fd135fe08d611bad1f241",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "27c9b491bf7604e83b50c3bbfa18a30266ff345f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "2cee937f779f69b195b37bbec1e888da9bfe9d58",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
        "lessThan": "3e5d1bf4bd687beb2cb4e32a07af695455925588",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/cpufreq.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.111",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.53",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/cpufreq.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-97904

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38062 · Revision 1
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Publisher date
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