SB20260918234 - Type Confusion in Linux kernel bpf
Published: September 18, 2026
Security Bulletin ID
SB20260918234
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Type Confusion (CVE-ID: CVE-2026-92486)
CWE-ID: CWE-843 - Type confusion
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to trigger a control-flow integrity violation.
The vulnerability exists due to an incompatible function pointer type in BPF task work callback handling when invoking BPF subprogram callbacks. A local user can schedule a BPF task work callback to trigger a control-flow integrity violation.
Remediation
Install update from vendor's website.