Improper Initialization in Linux kernel - CVE-2025-71300
Published: May 9, 2026
Vulnerability identifier: #VU130902
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-2025-71300
CWE-ID: CWE-665
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 resource initialization in the arm64 zynqmp device tree OP-TEE node handling when booting systems with OP-TEE logic in U-Boot. A local user can trigger the vulnerable configuration to cause a denial of service.
The issue occurs because a manually defined OP-TEE node prevents automatic insertion of the reserved-memory node, leading to memory access violations during runtime.
How to mitigate CVE-2025-71300
Install security update from vendor's repository.