#VU121502 NULL pointer dereference in Linux kernel - CVE-2025-71118
Published: January 14, 2026
Vulnerability identifier: #VU121502
Vulnerability risk: Low
CVSSv4.0: 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-2025-71118
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the acpi_ns_walk_namespace() function in drivers/acpi/acpica/nswalk.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0d8bb08126920fd4b12dbf32d9250757c9064b36
- https://git.kernel.org/stable/c/1bc34293dfbd266c29875206849b4f8e8177e6df
- https://git.kernel.org/stable/c/7f9b951ed11842373851dd3c91860778356d62d3
- https://git.kernel.org/stable/c/9d6c58dae8f6590c746ac5d0012ffe14a77539f0
- https://git.kernel.org/stable/c/f91dad0a3b381244183ffbea4cec5a7a69d6f41e