SB2026091232 - Infinite loop in Linux kernel base driver
Published: September 12, 2026
Security Bulletin ID
SB2026091232
CSH 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 vulnerability.
1) Infinite loop (CVE-ID: CVE-2026-89744)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an infinite loop in fwnode_get_next_child_node() when iterating over children of a fwnode with a secondary fwnode that has more than one child. A local user can trigger the child-node iteration to cause a denial of service.
Remediation
Install update from vendor's website.