Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000953)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000953 advisory. The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page- table levels, which allows local users to cause a denial o...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002877)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002877 advisory. The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page- table levels, which allows local users to cause a denial o...

Astra Linux - уязвимость в linux-6.12

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level The AMD IOMMU host page table implementation supports dynamic page table levels up to 6 levels, starting with a 3-level configuration that expands based on IOVA...

EUVD-2025-33337

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level The AMD IOMMU host page table implementation supports dynamic page table levels up to 6 levels, starting with a 3-level configuration that expands based on IOVA...

AZL-76434 CVE-2025-39961 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level The AMD IOMMU host page table implementation supports dynamic page table levels up to 6 levels, starting with a 3-level configuration that expands based on IOVA...

CVE-2025-39961 iommu/amd/pgtbl: Fix possible race while increase page table level

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level The AMD IOMMU host page table implementation supports dynamic page table levels up to 6 levels, starting with a 3-level configuration that expands based on IOVA...

EUVD-2021-15367

Malware in sbrugna...

PT-2025-41375

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The AMD IOMMU host page table implementation has a potential race condition during page table level increases. Specifically, in the unmap path iommu v1 unmap pages, the fetch pte functio...

ALPINE-CVE-2023-46835

The current setup of the quarantine page tables assumes that the quarantine domain domio has been initialized with an address width of DEFAULTDOMAINADDRESSWIDTH 48 and hence 4 page table levels. However domio being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum hot...

UBUNTU-CVE-2023-46835

The current setup of the quarantine page tables assumes that the quarantine domain domio has been initialized with an address width of DEFAULTDOMAINADDRESSWIDTH 48 and hence 4 page table levels. However domio being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum hot...

Xen: x86/AMD: Mismatch in IOMMU Quarantine Page Table Levels (XSA-445)

The current setup of quarantine page tables assumes that there are 4 page table levels, however the AMD-Vi IOMMU is configured with 3 page table levels for systems without RAM above the 512 GB boundary. Due to this level mismatch, the sink page the device gets read/write access to is no longer...

Xen Security Vulnerabilities

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen has a security vulnerability that stems...

PT-2023-7266 · Xen +2 · Xen +2

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue arises from a mismatch in the IOMMU quarantine page table levels. On systems with no RAM above the 512GB mark, only 3 page-table levels are configured in the IOMMU, while the quaranti...

SUSE CVE-2016-2143

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service system crash or possibly have unspecified other impact via a crafted application, related to...

CVE-2021-28710

certain VT-d IOMMUs may not work in shared page table mode For efficiency reasons, address translation control structures page tables may and, on suitable hardware, by default will be shared between CPUs, for second-level translation EPT, and IOMMUs. These page tables are presently set up to alwa...

kernel: Fork of large process causes memory corruption

It was reported that on s390x, the fork of a process with four page table levels will cause memory corruption with a variety of symptoms. All processes are created with three level page table and a limit of 4TB for the address space. If the parent process has four page table levels with a limit o...

kernel security and bug fix update

2.6.32-642.11.1 - mm close FOLL MAPPRIVATE race Larry Woodman 1385116 1385117 CVE-2016-5195 2.6.32-642.10.1 - scsi fnic: Fix to cleanup aborted IO to avoid device being offlined by mid-layer Maurizio Lombardi 1382620 1341298 2.6.32-642.9.1 - net vlan: Fix FCOEMTU support Maurizio Lombardi 1381592...

CVE-2016-2143

It was reported that on s390x, the fork of a process with four page table levels will cause memory corruption with a variety of symptoms. All processes are created with three level page table and a limit of 4TB for the address space. If the parent process has four page table levels with a limit o...

Linux kernel-table levels denial of service vulnerability

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A denial of service vulnerability exists in the fork implementation of Linux kernel versions prior to 4.5 on the s390 platform, which stems from the program failing to properl...

Design/Logic Flaw

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service system crash or possibly have unspecified other impact via a crafted application, related to...