{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43328", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.002Z", "datePublished": "2026-05-08T13:31:16.787Z", "dateUpdated": "2026-05-23T16:06:43.531Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:06:43.531Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cpufreq/cpufreq_governor.c"], "versions": [{"version": "4ebe36c94aed95de71a8ce6a6762226d31c938ee", "lessThan": "56bc91ee78babe9578585a2bc137abc4b3115ff3", "status": "affected", "versionType": "git"}, {"version": "4ebe36c94aed95de71a8ce6a6762226d31c938ee", "lessThan": "019ea28629720c220daedf38107c8787f330dc05", "status": "affected", "versionType": "git"}, {"version": "4ebe36c94aed95de71a8ce6a6762226d31c938ee", "lessThan": "da39ee627fd82b52068d4d5f115749a8b7d271f9", "status": "affected", "versionType": "git"}, {"version": "4ebe36c94aed95de71a8ce6a6762226d31c938ee", "lessThan": 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{"bugzilla": {"description": "kernel: cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path", "id": "2468079", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468079"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-763", "details": ["A flaw was found in the Linux kernel's cpufreq governor. An error in the cpufreq_dbs_governor_init() function's cleanup path, specifically when kobject_init_and_add() fails, causes a double free of memory. This memory corruption vulnerability can be exploited by a local attacker, potentially leading to system instability or a denial of service (DoS)."], "name": "CVE-2026-43328", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43328\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43328\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-43328.mbox"], "threat_severity": "Moderate"}

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