CVE-2023-53789

A flaw was found in the Linux kernel's AMD IOMMU driver (iommu/amd) when handling page fault error reporting. The kernel's page fault handler for the IOMMU domain incorrectly assumed that the domain was always set up, leading to a NULL pointer dereference in the iommu/amd: Improve page fault error reporting function if the IOMMU domain for the device group was not properly configured.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.