qemu-kvm: VNC WebSocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network acces...

SUSE-SU-2026:20498-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-54013: interconnect: Fix locking for runpm vs reclaim bsc1256280. - CVE-2025-38321: smb: Log an error when closeallcacheddirs fails bsc1246328. ...

Moderate: Red Hat Security Advisory: qemu-kvm security update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Linux x86 Kernel Nested SVM VMexit Buffer Overflow DoS

The vulnerability of the nestedsvmvmexit function in the arch/x86/kvm/svm/nested.c module of the virtualization subsystem on the Linux x86 kernel platform is related to an uncontrolled, exploitable condition. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-2243 Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing

A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition DoS...

SUSE-SU-2026:20496-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-50253: bpf: make sure skb-len != 0 when redirecting to a tunneling device bsc1249912. - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow ...

CVE-2026-0665

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption...

CVE-2026-0665 Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption...

CVE-2026-0665

CVE-2026-0665 affects QEMU with the Xen guest support, enabling an attacker in the guest to trigger out-of-bounds heap access through xen_physdev_map_pirq, potentially causing denial of service or memory corruption. The connected advisories confirm a fix in QEMU (update to version 10.0.8) across ...

CVE-2026-0665: Out-of-bounds Write

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption...

Moderate: Red Hat Security Advisory: edk2 security update

An update for edk2 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

Moderate: edk2 security update

EDK Embedded Development Kit is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fixes: openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap CVE-2025-9230 For more details about the security issues, includi...

virt:ol and virt-devel:ol security and bug fix update

hivex 1.3.18-21 - Bounds check for block exceeding page length CVE-2021-3504 resolves: rhbz1950501 libvirt 6.0.0-35.1.0.1 - Set SOURCEDATEEPOCH from changelog Orabug: 32019554 - Add runtime deps for pkg librbd1 = 1:10.2.5 Keshav Sharma - Disable parallel builds Karl Heubaum 6.0.0-35.1.el8 -...

virt:ol and virt-devel:ol security and bug fix update

libvirt 8.0.0-10.1.0.1 - Set SOURCEDATEEPOCH from changelog Orabug: 32019554 - Add runtime deps for pkg librbd1 = 1:10.2.5 Keshav Sharma 8.0.0-10.1.el8 - qemuprocess: Don't require a hugetlbfs mount for memfd rhbz2132176 - qemunamespace: Tolerate missing ACLs when creating a path in namespace...

virt:ol and virt-devel:ol security update

libvirt 6.0.0-28.1.0.1 - Add runtime deps for pkg librbd1 = 1:10.2.5 Keshav Sharma qemu-kvm 4.2.0-34.el83.5 - kvm-Drop-bogus-IPv6-messages.patch bz1939493 - Resolves: bz1939493 CVE-2020-10756 virt:rhel/qemu-kvm: QEMU: slirp: networking out-of-bounds read information disclosure vulnerability...

virt:ol and virt-devel:ol security and bug fix update

hivex libguestfs libguestfs-winsupport 8.8-2 - Rebase to ntfs-3g 2022.10.3 - Fixes: CVE-2022-40284 - resolves: rhbz2236373 libiscsi libnbd libtpms libvirt libvirt-dbus libvirt-python nbdkit netcf perl-Sys-Virt qemu-kvm 6.2.0-33 - CVE-2023-3354 QEMU: VNC: improper I/O watch removal in TLS handshak...

virt:ol and virt-devel:ol security update

qemu-kvm 4.2.0-59.el85.2 - kvm-virtiofsd-Drop-membership-of-all-supplementary-group.patch bz2048627 - Resolves: bz2048627 CVE-2022-0358 virt:rhel/qemu-kvm: QEMU: virtiofsd: potential privilege escalation via CVE-2018-13405 rhel-8.5.0.z...

virt:ol and virt-devel:ol security update

qemu-kvm 4.2.0-59.el85 - kvm-hw-scsi-scsi-disk-MODEPAGEALLS-not-allowed-in-MODE.patch bz2025605 - kvm-e1000-fix-tx-re-entrancy-problem.patch bz2025011 - Resolves: bz2025605 CVE-2021-3930 virt:rhel/qemu-kvm: QEMU: off-by-one error in modesensepage in hw/scsi/scsi-disk.c rhel-8.5.0.z - Resolves:...

AZL-77709 CVE-2026-23198 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't clobber irqfd routing type when deassigning irqfd When deassigning a KVMIRQFD, don't clobber the irqfd's copy of the IRQ's routing entry as doing so breaks kvmarchirqbypassdelproducer on x86 and arm64, which explicitly...

UBUNTU-CVE-2026-23198

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't clobber irqfd routing type when deassigning irqfd When deassigning a KVMIRQFD, don't clobber the irqfd's copy of the IRQ's routing entry as doing so breaks kvmarchirqbypassdelproducer on x86 and arm64, which explicitly...