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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64377
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:20 UTC
Updated2026-07-25 10:17:20 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.064530000 (date 2026-07-28)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 054a3ef683a176a509cc9b37f762029aae942495 28a03a3f6e6cda0b0da3b43761d175dec5d14d13 git Not specified
CNA Linux Linux affected 054a3ef683a176a509cc9b37f762029aae942495 e904961332801c87355f5d11c65bb433e717c489 git Not specified
CNA Linux Linux affected 054a3ef683a176a509cc9b37f762029aae942495 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d git Not specified
CNA Linux Linux affected 054a3ef683a176a509cc9b37f762029aae942495 bcb8889c4981fdde42d4fd2c29a77d510fe21da2 git Not specified
CNA Linux Linux affected 6.2 Not specified
CNA Linux Linux unaffected 6.2 semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/bcb8889c4981fdde42d4fd2c29a77d510fe21da2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e904961332801c87355f5d11c65bb433e717c489 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/28a03a3f6e6cda0b0da3b43761d175dec5d14d13 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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