VulnerabilityPublished 25 Jul 2026Updated 21 Oct 2026

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

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in e904961332801c87355f5d11c65bb433e717c489 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in e904961332801c87355f5d11c65bb433e717c489, bcb8889c4981fdde42d4fd2c29a77d510fe21da2, 28a03a3f6e6cda0b0da3b43761d175dec5d14d13 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 054a3ef683a176a509cc9b37f762029aae942495, < e904961332801c87355f5d11c65bb433e717c489	Fixed in e904961332801c87355f5d11c65bb433e717c489
LinuxLinux	Affected ≥ 054a3ef683a176a509cc9b37f762029aae942495, < bcb8889c4981fdde42d4fd2c29a77d510fe21da2	Fixed in bcb8889c4981fdde42d4fd2c29a77d510fe21da2
LinuxLinux	Affected ≥ 054a3ef683a176a509cc9b37f762029aae942495, < 28a03a3f6e6cda0b0da3b43761d175dec5d14d13	Fixed in 28a03a3f6e6cda0b0da3b43761d175dec5d14d13
LinuxLinux	Affected ≥ 054a3ef683a176a509cc9b37f762029aae942495, < 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d	Fixed in 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d
LinuxLinux	Affected ≥ 054a3ef683a176a509cc9b37f762029aae942495, < 0f012938f21302c08153589c1aca0283f8d6911d	Fixed in 0f012938f21302c08153589c1aca0283f8d6911d
LinuxLinux	Affected =6.2	Fixed in–

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.

References

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