High 7.8Published Jul 25, 2026

CVE-2026-64377cpufreq: qcom-cpufreq-hw: Fix possible double free

Updated under an hour ago (Oct 27, 2026, 6:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	054a3ef683a176a509cc9b37f762029aae942495 builds before 0f012938f21302c08153589c1aca0283f8d6911d; 054a3ef683a176a509cc9b37f762029aae942495 builds before 28a03a3f6e6cda0b0da3b43761d175dec5d14d13; from 054a3ef683a176a509cc9b37f762029aae942495 before e904961332801c87355f5d11c65bb433e717c489; 054a3ef683a176a509cc9b37f762029aae942495 builds before 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d; from 054a3ef683a176a509cc9b37f762029aae942495 before bcb8889c4981fdde42d4fd2c29a77d510fe21da2	CNA record
linux linux_kernel linux:linux_kernel	from 6.2 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4	NVD

References

References

https://git.kernel.org/stable/c/0f012938f21302c08153589c1aca0283f8d6911d
https://git.kernel.org/stable/c/28a03a3f6e6cda0b0da3b43761d175dec5d14d13	patch
https://git.kernel.org/stable/c/e904961332801c87355f5d11c65bb433e717c489	patch
https://git.kernel.org/stable/c/9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d	patch
https://git.kernel.org/stable/c/bcb8889c4981fdde42d4fd2c29a77d510fe21da2	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.