CVE-2026-43328None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path When kobject_init_and_add() fails, cpufreq_dbs_governor_init() calls kobject_put(&dbs_data…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path
When kobject_init_and_add() fails, cpufreq_dbs_governor_init() calls kobject_put(&dbs_data->attr_set.kobj).
The kobject release callback cpufreq_dbs_data_release() calls gov->exit(dbs_data) and kfree(dbs_data), but the current error path then calls gov->exit(dbs_data) and kfree(dbs_data) again, causing a double free.
Keep the direct kfree(dbs_data) for the gov->init() failure path, but after kobject_init_and_add() has been called, let kobject_put() handle the cleanup through cpufreq_dbs_data_release().
Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 56bc91ee78babe9578585a2bc137abc4b3115ff3Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 4b9118e93d2499bb2808ef3742fa0ce06f4f8117Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 019ea28629720c220daedf38107c8787f330dc05Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < da39ee627fd82b52068d4d5f115749a8b7d271f9Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 427d048e4f6acbfa01b5a8062449fe0ee8987c0dLinux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 3bf9d023d2329a0e5379f2fd09d06ef09729cd9dLinux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1eLinux e977b1477a6725868302957e6b5c330220391797Linux >= 5.1.6 < 5.2Linux 5.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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