CVE-2026-89924

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine component for s390 architecture. When handling guest debug requests, a memory leak occurs if a watchpoint import fails. A local guest user could repeatedly trigger this flaw, leading to a continuous leak of memory buffers. Th...

SUSE CVE-2026-89923

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Free guest debug data on vcpu destroy kvms390clearbpdata is only called from kvmarchvcpuioctlsetguestdebug, i.e. when user space changes or disables debugging. A vCPU that is destroyed while hardware breakpoints are...

SUSE CVE-2026-89924

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...

SUSE CVE-2026-89925

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bpdata is freed only for the error case by kfreebpdata. Every successful KVMSETGUESTDEBUG will leak bpdata...

CVE-2026-89923

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Free guest debug data on vcpu destroy kvms390clearbpdata is only called from kvmarchvcpuioctlsetguestdebug, i.e. when user space changes or disables debugging. A vCPU that is destroyed while hardware breakpoints are...

AZL-101538 CVE-2026-89924 affecting package kernel for versions less than 6.6.157.1-1

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...

CVE-2026-89924 KVM: s390: Fix old_data leak in guest debug error path

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...

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...

PT-2026-93566

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the KVM s390 guest debug handling. The bp data variable is only freed during error cases via the kfreebp data function, causing bp data to leak during every...

PT-2026-93565

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the KVM s390 architecture, a memory leak occurs in the guest debug error path. The import wp info function allocates an old data buffer for each watchpoint to back up original guest...

CVE-2026-89925: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bpdata is freed only for the error case by kfreebpdata. Every successful KVMSETGUESTDEBUG will leak bpdata...

CVE-2026-89924: Undefined Security Weakness

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...