CVE-2022-32953

CVE-2022-32953 affects Insyde InsydeH2O BIOS (kernel 5.0–5.5). DMA-based TOCTOU on the SdHostDriver buffer in SMM and non-SMM code could corrupt SMRAM and escalate privileges. Mitigations per the sources include enabling IOMMU protection for the ACPI runtime memory used for the command buffer and...