CVE-2021-47035

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the iommu/vt-d component in the Linux kernel, where the first level page table used for IOVA translation only supports Read-Only and Read-Write permissions, but not Write-Only permission. However, when using the second level, separate permissions are given that allow WriteOnly, which seems inconsistent. The goal is to have consistent behavior and remove the Write-Only permission configuration for second-level paging entries.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.