{"id":"CVE-2026-43328","title":"cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path\n\nWhen kobject_init_and_add() fails, cpufreq_dbs_governor_init() calls\nkobject_put(&dbs_data…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 56bc91ee78babe9578585a2bc137abc4b3115ff3","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 4b9118e93d2499bb2808ef3742fa0ce06f4f8117","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 019ea28629720c220daedf38107c8787f330dc05","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < da39ee627fd82b52068d4d5f115749a8b7d271f9","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 427d048e4f6acbfa01b5a8062449fe0ee8987c0d","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 3bf9d023d2329a0e5379f2fd09d06ef09729cd9d","Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e","Linux e977b1477a6725868302957e6b5c330220391797","Linux >= 5.1.6 < 5.2","Linux 5.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:35:53.949941Z"},"published":"2026-05-08","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:42:49.314Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43328","references":[{"url":"https://git.kernel.org/stable/c/56bc91ee78babe9578585a2bc137abc4b3115ff3"},{"url":"https://git.kernel.org/stable/c/4b9118e93d2499bb2808ef3742fa0ce06f4f8117"},{"url":"https://git.kernel.org/stable/c/019ea28629720c220daedf38107c8787f330dc05"},{"url":"https://git.kernel.org/stable/c/da39ee627fd82b52068d4d5f115749a8b7d271f9"},{"url":"https://git.kernel.org/stable/c/427d048e4f6acbfa01b5a8062449fe0ee8987c0d"},{"url":"https://git.kernel.org/stable/c/d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357"},{"url":"https://git.kernel.org/stable/c/3bf9d023d2329a0e5379f2fd09d06ef09729cd9d"},{"url":"https://git.kernel.org/stable/c/6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02583,"ingestedAt":"2026-11-06T15:54:03.934Z","slug":"CVE-2026-43328","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path\n\nWhen kobject_init_and_add() fails, cpufreq_dbs_governor_init() calls\nkobject_put(&dbs_data->attr_set.kobj).\n\nThe kobject release callback cpufreq_dbs_data_release() calls\ngov->exit(dbs_data) and kfree(dbs_data), but the current error path\nthen calls gov->exit(dbs_data) and kfree(dbs_data) again, causing a\ndouble free.\n\nKeep the direct kfree(dbs_data) for the gov->init() failure path, but\nafter kobject_init_and_add() has been called, let kobject_put() handle\nthe cleanup through cpufreq_dbs_data_release().\n\n## Affected\n\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 56bc91ee78babe9578585a2bc137abc4b3115ff3`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 4b9118e93d2499bb2808ef3742fa0ce06f4f8117`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 019ea28629720c220daedf38107c8787f330dc05`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < da39ee627fd82b52068d4d5f115749a8b7d271f9`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 427d048e4f6acbfa01b5a8062449fe0ee8987c0d`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 3bf9d023d2329a0e5379f2fd09d06ef09729cd9d`\n- `Linux >= 4ebe36c94aed95de71a8ce6a6762226d31c938ee < 6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e`\n- `Linux e977b1477a6725868302957e6b5c330220391797`\n- `Linux >= 5.1.6 < 5.2`\n- `Linux 5.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}