Use of uninitialized resource in Linux kernel - CVE-2025-40155
Published: November 12, 2025
Vulnerability identifier: #VU118429
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-2025-40155
CWE-ID: CWE-908
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 perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the domain_translation_struct_show() function in drivers/iommu/intel/debugfs.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-40155
Install update from vendor's repository.