Double free in Linux kernel - CVE-2026-43328
Published: May 9, 2026
Vulnerability identifier: #VU130853
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43328
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a double free in cpufreq_dbs_governor_init() when handling a failure from kobject_init_and_add(). A local user can trigger the error path to cause a denial of service.
How to mitigate CVE-2026-43328
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/019ea28629720c220daedf38107c8787f330dc05
- https://git.kernel.org/stable/c/3bf9d023d2329a0e5379f2fd09d06ef09729cd9d
- https://git.kernel.org/stable/c/427d048e4f6acbfa01b5a8062449fe0ee8987c0d
- https://git.kernel.org/stable/c/56bc91ee78babe9578585a2bc137abc4b3115ff3
- https://git.kernel.org/stable/c/6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1e
- https://git.kernel.org/stable/c/d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357
- https://git.kernel.org/stable/c/da39ee627fd82b52068d4d5f115749a8b7d271f9