SB2026040658 - Deadlock in Linux kernel drm imagination driver
Published: April 6, 2026
Security Bulletin ID
SB2026040658
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) Deadlock (CVE-ID: CVE-2026-23470)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper locking in the soft reset sequence in the drm/imagination driver when handling interrupts. A local user can trigger a soft reset to cause a denial of service.
The issue results in a deadlock because the soft reset sequence is executed from the threaded IRQ handler.
Remediation
Install update from vendor's website.