EUVD-2026-39886

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption Commit 60f030f7418d "iommu/vt-d: Avoid use of NULL after WARNONONCE" fixed a NULL pointer dereference in an unlikely situation partly. If devpasid is not found in...

CVE-2025-54509

Improper access control for register interface in the input-output memory management unit IOMMU could allow a privileged attacker to cause non-coherent accesses by the AMD secure processor ASP potentially resulting in loss of integrity...

CVE-2026-45944

A flaw was found in the Linux kernel's IOMMU Input/Output Memory Management Unit VT-d Virtualization Technology for Directed I/O component. When a context entry is being torn down, the 'Present' bit might not be cleared before other parts of the entry are zeroed. This can lead to the hardware...

UBUNTU-CVE-2026-45944

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

The vulnerability of the iommufdHWPT_nested_alloc() function in the Linux operating system’s IOMMU kernel driver allows a hacker to cause a service failure.

The vulnerability of the iommufdHWPTnestedalloc function in the Linux operating system’s IOMMU support driver is related to pointer aliasing. Exploiting this vulnerability could allow an attacker to cause a service failure...

OESA-2024-2550 linux-firmware security update

This package contains firmware images required by some devices. Security Fixes: IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in...

The vulnerability of the x86 IOMMU Identity Mapping component in the cross-platform hypervisor Xen allows a attacker to influence the confidentiality, integrity, and accessibility of the system.

The vulnerability of the x86 IOMMU Identity Mapping component in the cross-platform hypervisor Xen is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the...

DEBIAN-CVE-2022-48796

In the Linux kernel, the following vulnerability has been resolved: iommu: Fix potential use-after-free during probe Kasan has reported the following use after free on dev-iommu. when a device probe fails and it is in process of freeing dev-iommu in deviommufree function, a deferredprobeworkfunc...

ALPINE-CVE-2023-46839

PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests. Such phantom functions need an IOMMU context...

PT-2022-17810 · Suse · Suse

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue concerns IOMMU: RMRR VT-d and unity map AMD-Vi handling problems. Certain PCI devices in a system might be assigned Reserved Memory Regions fo...