{"id":"CVE-2026-43328","state":"PUBLISHED","title":"cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path","description":"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->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().","publishedAt":"2026-05-08T13:31:16.787Z","updatedAt":"2026-06-01T16:15:39.421Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"56bc91ee78babe9578585a2bc137abc4b3115ff3","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"4b9118e93d2499bb2808ef3742fa0ce06f4f8117","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"019ea28629720c220daedf38107c8787f330dc05","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"da39ee627fd82b52068d4d5f115749a8b7d271f9","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"427d048e4f6acbfa01b5a8062449fe0ee8987c0d","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"3bf9d023d2329a0e5379f2fd09d06ef09729cd9d","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e","versionType":"git"},{"version":"e977b1477a6725868302957e6b5c330220391797","status":"affected","versionType":"git"},{"version":"5.1.6","status":"affected","lessThan":"5.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq_governor.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.134","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.81","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.22","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.12","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq_governor.c"]}],"references":["https://git.kernel.org/stable/c/56bc91ee78babe9578585a2bc137abc4b3115ff3","https://git.kernel.org/stable/c/4b9118e93d2499bb2808ef3742fa0ce06f4f8117","https://git.kernel.org/stable/c/019ea28629720c220daedf38107c8787f330dc05","https://git.kernel.org/stable/c/da39ee627fd82b52068d4d5f115749a8b7d271f9","https://git.kernel.org/stable/c/427d048e4f6acbfa01b5a8062449fe0ee8987c0d","https://git.kernel.org/stable/c/d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357","https://git.kernel.org/stable/c/3bf9d023d2329a0e5379f2fd09d06ef09729cd9d","https://git.kernel.org/stable/c/6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43328.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43328","state":"PUBLISHED","datePublished":"2026-05-08T13:31:16.787Z","dateUpdated":"2026-06-01T16:15:39.421Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.002Z"},"containers":{"cna":{"title":"cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path","descriptions":[{"lang":"en","value":"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->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()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"56bc91ee78babe9578585a2bc137abc4b3115ff3","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"4b9118e93d2499bb2808ef3742fa0ce06f4f8117","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"019ea28629720c220daedf38107c8787f330dc05","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"da39ee627fd82b52068d4d5f115749a8b7d271f9","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"427d048e4f6acbfa01b5a8062449fe0ee8987c0d","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"3bf9d023d2329a0e5379f2fd09d06ef09729cd9d","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e","versionType":"git"},{"version":"e977b1477a6725868302957e6b5c330220391797","status":"affected","versionType":"git"},{"version":"5.1.6","status":"affected","lessThan":"5.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq_governor.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.134","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.81","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.22","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.12","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq_governor.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-01T16:15:39.421Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.12.81"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.18.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.19.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.6"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}