SB2026092884 - Out-of-bounds read in Linux kernel trace events
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB2026092884
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) Out-of-bounds read (CVE-ID: CVE-2026-98117)
CWE-ID: CWE-125 - Out-of-bounds read
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 kernel memory access error.
The vulnerability exists due to an out-of-bounds read in the cachefiles coherency tracing path when processing variable-length coherency data. A local user can cause coherency data shorter than eight bytes to be processed to trigger a kernel memory access error.
Remediation
Install update from vendor's website.