SB2026040660 - Improper input validation in Linux kernel amd amdgpu driver
Published: April 6, 2026
Security Bulletin ID
SB2026040660
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) Improper input validation (CVE-ID: CVE-2026-23468)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper input validation in the amdgpu BO list handling when processing the bo_number field from userspace. A local user can supply an excessive number of BO list entries to cause a denial of service.
The issue can lead to excessive memory allocation and unnecessarily long list processing times.
Remediation
Install update from vendor's website.