SB20260918198 - Improper Validation of Specified Quantity in Input in Linux kernel bpf



SB20260918198 - Improper Validation of Specified Quantity in Input in Linux kernel bpf

Published: September 18, 2026

Security Bulletin ID SB20260918198
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-92516)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to trigger an incorrect offset warning.

The vulnerability exists due to incorrect offset validation in the BPF type format field parser when parsing BTF fields containing BPF_RES_SPIN_LOCK. A local user can provide a BTF record containing a BPF_RES_SPIN_LOCK field to trigger an incorrect offset warning.


Remediation

Install update from vendor's website.