SB20251226346 - Input validation error in Linux kernel iommu iommufd driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226346
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) Input validation error (CVE-ID: CVE-2023-54034)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the iommufd_vfio_iommu_get_info() function in drivers/iommu/iommufd/vfio_compat.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.