SB20260325117 - Missing release of memory after effective lifetime in Linux kernel pinctrl driver
Published: March 25, 2026
Security Bulletin ID
SB20260325117
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 security vulnerability.
1) Missing release of memory after effective lifetime (CVE-ID: CVE-2026-23337)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper memory management in the pinctrl subsystem when parsing device tree configuration. A local user can trigger a memory leak by providing malformed device tree configuration, leading to gradual resource exhaustion.
Exploitation requires the ability to supply or influence device tree configuration processed by the kernel.
Remediation
Install update from vendor's website.