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CVE-2026-64377

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

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 054a3ef683a176a509cc9b37f762029aae942495
Version < 28a03a3f6e6cda0b0da3b43761d175dec5d14d13
Status affected
Version 054a3ef683a176a509cc9b37f762029aae942495
Version < e904961332801c87355f5d11c65bb433e717c489
Status affected
Version 054a3ef683a176a509cc9b37f762029aae942495
Version < 9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d
Status affected
Version 054a3ef683a176a509cc9b37f762029aae942495
Version < bcb8889c4981fdde42d4fd2c29a77d510fe21da2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.2
Status affected
Version 0
Version < 6.2
Status unaffected
Version <= 6.12.*
Version 6.12.96
Status unaffected
Version <= 6.18.*
Version 6.18.39
Status unaffected
Version <= 7.1.*
Version 7.1.4
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.064
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/28a03a3f6e6cda0b0da3b43761d175dec5d14d13
https://git.kernel.org/stable/c/e904961332801c87355f5d11c65bb433e717c489
https://git.kernel.org/stable/c/9de568ef6cdfc7912d5ea8db02843c0e4ef0c75d
https://git.kernel.org/stable/c/bcb8889c4981fdde42d4fd2c29a77d510fe21da2