Linux Distros Unpatched Vulnerability : CVE-2026-98390

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/amdnode: Avoid divide by zero on virtualized systems On a virtualized system, the number of nodes does not have a relationship to the number of roots. A Xen...

CVE-2026-98390 x86/amd_node: Avoid divide by zero on virtualized systems

In the Linux kernel, the following vulnerability has been resolved: x86/amdnode: Avoid divide by zero on virtualized systems On a virtualized system, the number of nodes does not have a relationship to the number of roots. A Xen PVH dom0 can calculate rootspernode as 0, which crashes with a divid...

CVE-2026-98390

The Linux kernel contains a vulnerability where a divide by zero error can occur on certain virtualized systems, specifically Xen PVH dom0 . The issue arises because the underlying topology code on Xen can result in a roots_per_node value of 0 when num_nodes is 2 and num_roots is 1. This causes a...

CVE-2026-98390

In the Linux kernel, the following vulnerability has been resolved: x86/amdnode: Avoid divide by zero on virtualized systems On a virtualized system, the number of nodes does not have a relationship to the number of roots. A Xen PVH dom0 can calculate rootspernode as 0, which crashes with a divid...

ALPINE-CVE-2026-42493

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

CVE-2026-42493 x86 shadow paging is deprecated

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

PoD: Don't try to reclaim special pages

ISSUE DESCRIPTION A guest started with Populated on Demand enabled PoD can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen. IMPACT A buggy or malicious guest can cause corruption of Xen's state, leading to crashes or other...

CVE-2026-23558: Concurrent Execution using Shared Resource with Improper Synchronization

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then be freed while...

EUVD-2018-19269

Malware in sbrugna...

PT-2025-9009

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been identified, specifically in the xen hypercall hvm function used when running as a Xen PVH guest. This function clobbers the %rbx register,...

CVE-2024-45819

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

DEBIAN-CVE-2024-45819

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

CVE-2024-45819

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

CVE-2024-45819 libxl leaks data to PVH guests via ACPI tables

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

CVE-2024-45819 libxl leaks data to PVH guests via ACPI tables

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

CVE-2024-45819

The Xen hypervisor is vulnerable to an information leak where libxl fails to clear excess memory during the construction of ACPI tables for PVH guests . While the toolstack correctly populates the used parts of the tables in local memory, it fails to wipe the remaining allocated space before copy...

CVE-2024-45819

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

CVE-2024-45819

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prio...

SUSE-SU-2024:4116-1 Security update for xen

This update for xen fixes the following issues: - CVE-2024-45818: Fixed deadlock in x86 HVM standard VGA handling XSA-463 bsc1232622. - CVE-2024-45819: Fixed libxl data leaks to PVH guests via ACPI tables XSA-464 bsc1232624. Bug fixes: - Remove usage of net-tools-deprecated from supportconfig...

Security update for xen

This update for xen fixes the following issues: Security issues fixed: CVE-2024-45818: xen: Deadlock in x86 HVM standard VGA handling bsc1232622 CVE-2024-45819: xen: libxl leaks data to PVH guests via ACPI tables bsc1232624 CVE-2024-45817: xen: x86: Deadlock in vlapicerror bsc1230366 Non-security...