Improper control of a resource through its lifetime in Linux kernel - CVE-2025-71304
Published: May 28, 2026
Vulnerability identifier: #VU132651
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-2025-71304
CWE-ID: CWE-664
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 improper state management in /smack/doi handling when reusing a previously written DOI value. A local user can write a previously used value to /smack/doi to cause a denial of service.
Networking for non-ambient labels is disrupted because the default IPv4 domain map is not restored.
How to mitigate CVE-2025-71304
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/199452f22d2f74b897fe826f81ec402b0a8461a0
- https://git.kernel.org/stable/c/1c7ee23dfcd18d80770d8f90f2ab5bb1b2bfd8a3
- https://git.kernel.org/stable/c/33d589ed60ae433b483761987b85e0d24e54584e
- https://git.kernel.org/stable/c/5a247a84de0ba44edbbd6be851c8a6b2aa60ff85
- https://git.kernel.org/stable/c/6ec091c5c7eeabd249a7c46813cad1e9f555f859
- https://git.kernel.org/stable/c/8beebb8ad9a003f978e53b06237986588223e15e
- https://git.kernel.org/stable/c/eb718a3c8181ada679340db34cd61bce48e44749
- https://git.kernel.org/stable/c/f8071500177f38cff38892bd85ac631cc6e010b2