SB20260828192 - Reachable assertion in Linux kernel trace
Published: August 28, 2026
Security Bulletin ID
SB20260828192
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) Reachable assertion (CVE-ID: CVE-2026-80607)
CWE-ID: CWE-617 - Reachable Assertion
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 cause a denial of service.
The vulnerability exists due to improper handling of a reachable warning condition in parse_btf_arg in tracing probes when adding a kprobe event based on a raw address with a BTF parameter. A local user can add a crafted kprobe event to cause a denial of service.
Remediation
Install update from vendor's website.