CVE-2026-89923 KVM: s390: Free guest debug data on vcpu destroy

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...

CVE-2026-89923

This is a memory leak in the Linux kernel's KVM s390 module. When a vCPU is destroyed while hardware breakpoints remain armed (the normal case when a VMM exits or crashes), hw_bp_info, hw_wp_info, and old_data buffers are leaked because kvm_s390_clear_bp_data() is only invoked from the guest-debu...

CVE-2026-89923: Undefined Security Weakness

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...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001482)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001482 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: Always flush async PF workqueue when vCPU is being destroyed Always flush the per-vCPU asyn...

The vulnerability of the __kvm_vgic_vcpudestroy() function in the kernel of the Linux operating system’s arch/arm64/kvm/vgic/vgic-init.c file allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the kvmvgicvcpuDestroy function in the kernel of the Linux operating system’s arch/arm64/kvm/vgic/vgic-init.c module is related to the re-use of previously released memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...