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CVE-2022-26360

Status Candidate

Overview

IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.

Related Files

Debian Security Advisory 5117-1
Posted Apr 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5117-1 - Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2022-23033, CVE-2022-23034, CVE-2022-23035, CVE-2022-26356, CVE-2022-26357, CVE-2022-26358, CVE-2022-26359, CVE-2022-26360, CVE-2022-26361
SHA-256 | 819f8a49cd9f2ae6dc9a4768afc2e71a91e4114e4c5860d415894bcc9b37f10b
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