Vulnerability-Lookup

CVE-2026-64377 (GCVE-0-2026-64377)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:50 – Updated: 2026-07-25 08:50

Title

cpufreq: qcom-cpufreq-hw: Fix possible double free

Summary

In the Linux kernel, the following vulnerability has been resolved: cpufreq: qcom-cpufreq-hw: Fix possible double free qcom_cpufreq.data is allocated with devm_kzalloc() in probe() as an array of per-domain data. qcom_cpufreq_hw_cpu_init() stores a pointer to one element of this array in policy->driver_data. qcom_cpufreq_hw_cpu_exit() currently calls kfree() on policy->driver_data. This is not valid because the memory is devm-managed. For the first domain, this can free the devm-managed allocation while the devres entry is still active, leading to a possible double free when the platform device is later detached. For other domains, the pointer may refer to an element inside the array rather than the allocation base. Remove the kfree(data) call and let devres release qcom_cpufreq.data. This issue was found by a static analysis tool I am developing.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/28a03a3f6e6cda0b0…
https://git.kernel.org/stable/c/e904961332801c873…
https://git.kernel.org/stable/c/9de568ef6cdfc7912…
https://git.kernel.org/stable/c/bcb8889c4981fdde4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 054a3ef683a176a509cc9b37f762029aae942495 , < 28a03a3f6e6cda0b0da3b43761d175dec5d14d13 (git) Affected: 054a3ef683a176a509cc9b37f762029aae942495 , < e904961332801c87355f5d11c65bb433e717c489 (git) Affected: 054a3ef683a176a509cc9b37f762029aae942495 , < 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d (git) Affected: 054a3ef683a176a509cc9b37f762029aae942495 , < bcb8889c4981fdde42d4fd2c29a77d510fe21da2 (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

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JSON

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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/cpufreq/qcom-cpufreq-hw.c"
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        }
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/bcb8889c4981fdde42d4fd2c29a77d510fe21da2"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64377",
    "datePublished": "2026-07-25T08:50:28.299Z",
    "dateReserved": "2026-07-19T15:36:31.784Z",
    "dateUpdated": "2026-07-25T08:50:28.299Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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    "suse_vex": {
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      "cve": "CVE-2026-64377",
      "id": "CVE-2026-64377",
      "initial_release_date": "2026-07-25T16:00:37Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64377",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64377.json",
      "version": "2"
    }
  }
}

GHSA-9GW4-RC8J-J633

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

cpufreq: qcom-cpufreq-hw: Fix possible double free

qcom_cpufreq.data is allocated with devm_kzalloc() in probe() as an array of per-domain data. qcom_cpufreq_hw_cpu_init() stores a pointer to one element of this array in policy->driver_data.

qcom_cpufreq_hw_cpu_exit() currently calls kfree() on policy->driver_data. This is not valid because the memory is devm-managed. For the first domain, this can free the devm-managed allocation while the devres entry is still active, leading to a possible double free when the platform device is later detached. For other domains, the pointer may refer to an element inside the array rather than the allocation base.

Remove the kfree(data) call and let devres release qcom_cpufreq.data.

This issue was found by a static analysis tool I am developing.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64377"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:20Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: qcom-cpufreq-hw: Fix possible double free\n\nqcom_cpufreq.data is allocated with devm_kzalloc() in probe() as an\narray of per-domain data. qcom_cpufreq_hw_cpu_init() stores a pointer to\none element of this array in policy-\u003edriver_data.\n\nqcom_cpufreq_hw_cpu_exit() currently calls kfree() on policy-\u003edriver_data.\nThis is not valid because the memory is devm-managed. For the first\ndomain, this can free the devm-managed allocation while the devres entry\nis still active, leading to a possible double free when the platform\ndevice is later detached. For other domains, the pointer may refer to an\nelement inside the array rather than the allocation base.\n\nRemove the kfree(data) call and let devres release qcom_cpufreq.data.\n\nThis issue was found by a static analysis tool I am developing.",
  "id": "GHSA-9gw4-rc8j-j633",
  "modified": "2026-07-25T12:31:33Z",
  "published": "2026-07-25T12:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64377"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28a03a3f6e6cda0b0da3b43761d175dec5d14d13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcb8889c4981fdde42d4fd2c29a77d510fe21da2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e904961332801c87355f5d11c65bb433e717c489"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64377 (GCVE-0-2026-64377)

GHSA-9GW4-RC8J-J633

Tags

Sightings

Nomenclature