#VU122929 Use of uninitialized resource in Linux kernel - CVE-2026-23140
Published: February 16, 2026
Vulnerability identifier: #VU122929
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-2026-23140
CWE-ID: CWE-908
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 use of uninitialized resource within the bpf_prog_test_run_xdp() function in net/bpf/test_run.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/31e37f44b60679d90b9f999c91371b15291be8e0
- https://git.kernel.org/stable/c/6447e697cfa8a43a8e491cb81bcc390d0f28f8ba
- https://git.kernel.org/stable/c/7c81ad5e580bd8441f8a521a8d34824ce6582ae5
- https://git.kernel.org/stable/c/e558cca217790286e799a8baacd1610bda31b261
- https://git.kernel.org/stable/c/e7440935063949d6f2c10f7328d960d0ff4bce90