CVE-2026-89924

This Linux kernel vulnerability affects the KVM s390 subsystem's guest debug interface. In __import_wp_info(), per-watchpoint old_data buffers are allocated to back up original guest memory contents. When a later watchpoint in the same KVM_SET_GUEST_DEBUG request fails to import, kvm_s390_import_...

EUVD-2026-80524

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix olddata leak in guest debug error path importwpinfo allocates a per-watchpoint olddata buffer to back up the original guest memory contents. If a later watchpoint of the same KVMSETGUESTDEBUG request fails to impor...

Linux Distros Unpatched Vulnerability : CVE-2025-21839

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with guest value only before entering .vcpurun loop Move the conditional...

Debug Exception Delivery in Secure Nested Paging

Bulletin ID: AMD-SB-3006 Potential Impact: Suppression of guest debug exceptions Severity: Low Summary A researcher has reported that a host can potentially suppress delivery of debug exceptions to SEV-SNP guests that have the restricted injection feature enabled. For example, a software-based...