Roger Pau Monne

The issue is related to a disclosure of information in the Xen hypervisor Linux kernel. It may allow a remote attacker to gain unauthorized access to protected information.

The issue is related to a disclosure of information in the Xen hypervisor and Linux kernel. It may allow a remote attacker to gain unauthorized access to protected information.

The issue is related to a lack of privilege management mechanism in the Xen hypervisor on x86 Intel systems. Exploitation of this issue may allow an attacker to access confidential data, compromise its integrity, and cause a denial of service. The problem occurs because a backport missed a flush, resulting in incorrect IOMMU updates, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access.