Issued at: 2026-10-23
Updated at: 2026-10-23
Advisory content derived from Red Hat RHSA-2026:88421, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: qemu-kvm security, bug fix, and enhancement update
Description
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
Security Fix(es):
* qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys (CVE-2026-12080)
Bug Fix(es) and Enhancement(s):
* qemu-img can't create a qcow2 overlay with 'data_file' feature on top of a file without destroying the original image [rhel-9.8.z] (JIRA:Rocky Linux-164549)
* live migration of a VM with a scsi3pr to a node that previously held a reservation on that disk fails. [rhel-9.8.z] (JIRA:Rocky Linux-280223)
* Fix pending QEMU issues for L1VH GA - QEMU [rhel-9.8.z] (JIRA:Rocky Linux-283121)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.