SB20260216113 - Use of uninitialized resource in Linux kernel bpf
Published: February 16, 2026
Security Bulletin ID
SB20260216113
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2026-23140)
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 website.
References
- 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