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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-64377

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 054a3ef683a176a509cc9b37f762029aae942495 to < 0f012938f21302c08153589c1aca0283f8d6911daffected
  • 054a3ef683a176a509cc9b37f762029aae942495 to < 28a03a3f6e6cda0b0da3b43761d175dec5d14d13affected
  • 054a3ef683a176a509cc9b37f762029aae942495 to < e904961332801c87355f5d11c65bb433e717c489affected
  • 054a3ef683a176a509cc9b37f762029aae942495 to < 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75daffected
  • 054a3ef683a176a509cc9b37f762029aae942495 to < bcb8889c4981fdde42d4fd2c29a77d510fe21da2affected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.96 to ≤ 6.12.*unaffected
  • 6.18.39 to ≤ 6.18.*unaffected
  • 7.1.4 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References