71 matches found
SUSE CVE-2026-45894
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...
CVE-2026-45894
A flaw was found in the Linux kernel's Intel VT-d Virtualization Technology for Directed I/O Scalable Mode. When a Process Address Space ID PASID table entry is being removed, the system may attempt to clear the entry before properly signaling to the hardware that the entry is no longer active...
CVE-2026-46014
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Add missing save/restore handling of LBR MSRs MSRIA32DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVMGETMSRINDEXLIST, and LBR MSRs cannot be set with KVMSETMSRS. So save/restore is completely broken. Fix it ...
CVE-2026-45894
iommu/vt-d: Clear Present bit before tearing down PASID entry...
Linux kernel 安全漏洞
The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the Intel VT-d driver failing to clear the Present bit before deleting PASID table entries. This...
PT-2026-43761
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...
PT-2026-43811
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...
SUSE CVE-2026-43161
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Skip dev-iotlb flush for inaccessible PCIe device without scalable mode PCIe endpoints with ATS enabled and passed through to userspace e.g., QEMU, DPDK can hard-lock the host when their link drops, either by surprise...
Astra Linux - уязвимость в linux-5.15
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX – Prevent RSB underflow before vmenter On VMX, there is some timing balance between the time the guest’s SPECCTRL value is written and the vmenter. Balanced returns matched by a preceding call are usually acceptable...
Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002567)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002567 advisory. The handleinvept function in arch/x86/kvm/vmx.c in the Linux kernel 3.12 through 3.15 allows privileged KVM guest OS users to cause a denial of service NULL pointer...
SUSE CVE-2023-53756
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcstouchmsrbitmap function uses...
PT-2025-49486
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized current vmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcs touch msr bitmap function...
kernel: iommu/vt-d: Disallow dirty tracking if incoherent page walk
A flaw was found in the Intel VT-d IOMMU support in the Linux kernel. When an IOMMU is configured to perform dirty-page tracking, but the page-walk memory region is incoherent between the IOMMU and CPU, the hardware may attempt to atomically update the bits in a paging-structure entry that is not...
KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace
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CVE-2025-40058
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Disallow dirty tracking if incoherent page walk Dirty page tracking relies on the IOMMU atomically updating the dirty bit in the paging-structure entry. For this operation to succeed, the paging- structure memory must...
Linux Distros Unpatched Vulnerability : CVE-2022-42327
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86: unintended memory sharing between guests On Intel systems that support the virtualize APIC accesses feature, a guest can read and write the global shared...
Linux Distros Unpatched Vulnerability : CVE-2023-45745
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper input validation in some IntelR TDX module software before version 1.5.05.46.698 may allow a privileged user to potentially enable escalation of...
UBUNTU-CVE-2022-49932
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Do all initialization before exposing /dev/kvm to userspace Call kvminit only after all setup is complete, as kvminit exposes /dev/kvm to userspace and thus allows userspace to create VMs and call other ioctls. E.g. KVM...
kernel: iommu/vt-d: Fix WARN_ON in iommu probe path
CVE-2024-35957 is a vulnerability in the Linux kernel's Intel Virtualization Technology for Directed I/O VT-d subsystem. The issue stems from an incorrect assumption that each device has a unique source ID, leading to potential conflicts and system warnings during the IOMMU probe process. This fl...
DEBIAN-CVE-2024-31145
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 ...