Use-after-free in Linux kernel - CVE-2026-46288
Published: June 10, 2026
Vulnerability identifier: #VU134245
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-2026-46288
CWE-ID: CWE-416
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 attacker to cause a denial of service.
The vulnerability exists due to use-after-free in of_unittest_changeset() when handling device tree unittest changeset nodes. A local attacker can trigger access to a freed struct device_node to cause a denial of service.
The issue occurs because a reference-counted node is released and then later accessed through another pointer that refers to the same object.
How to mitigate CVE-2026-46288
Install security update from vendor's repository.