kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the fact that the KVM x86 getsregs2 function lacks SRCU protection, potentially leading to lock...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the PCI/IOV driver’s recursive access to the pcirescanremovelock lock when SR-IOV is enabled or...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the fact that the VMLOAD/VMSAVE emulation in KVM nSVM does not always utilize vmcb01, potentially...

Oracle Linux 10 : systemd (ELSA-2026-13651)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-13651 advisory. 257-13.0.1.el101.3 - Fix detection of Oracle Virtualization or BM envs Orabug: 37531877 - Avoid udevadm warnings when using udev valid configs Orabug: 3750319...

Linux Distros Unpatched Vulnerability : CVE-2026-43133

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state made KVM always use...

Linux Distros Unpatched Vulnerability : CVE-2026-43147

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Revert PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV This reverts commit 05703271c3cd PCI/IOV: Add PCI rescan-remove locking when...

PT-2026-38260

Name of the Vulnerable Software and Affected Versions SUSE Virtualization versions prior to 1.8.0 Description A security gap exists in the SUSE Virtualization Rancher integration mechanism where the registration client uses an insecure TLS option that fails to verify the remote server's...

Important: Red Hat Security Advisory: OpenShift Virtualization v4.20 Images

Red Hat OpenShift Virtualization release v4.20 is now available with updates to packages and images that fix several bugs and add enhancements. OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

systemd security update

257-13.0.1.el101.3 - Fix detection of Oracle Virtualization or BM envs Orabug: 37531877 - Avoid udevadm warnings when using udev valid configs Orabug: 37503197 - allow dm remove ioctl to co-operate with UEK3 Orabug: 18467469 - set 'RemoveIPC=no' in logind.conf as default Orabug: 22224874 - Fix...

Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (April 2026 - Part 2 of 2)

Summary Multiple vulnerabilities have been addressed in Data Virtualization on IBM Software Hub. Note that Data Virtualization was named Watson Query on IBM Cloud Pak for Data version 4.8. Vulnerability Details CVEID:CVE-2025-68121 DESCRIPTION: During session resumption in crypto/tls, if the...

Important: Red Hat Security Advisory: OpenShift Virtualization v4.19 Images

Red Hat OpenShift Virtualization release v4.19 is now available with updates to packages and images that fix several bugs and add enhancements. OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift...

Important: Red Hat Security Advisory: OpenShift Virtualization v4.14 Images

Red Hat OpenShift Virtualization release v4.14 is now available with updates to packages and images that fix several bugs and add enhancements. OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift...

PT-2026-47367

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified openSUSE Tumbleweed versions prior to kernel-devel-7.0.12-1.1 Description A race condition exists in the KVM x86 component between vmx sync pir to irr on a target vCPU and vmx deliver posted interru...

CLSA-2026-1777633439 kernel: Fix of 142 CVEs

crypto: algifaead - Fix minimum RX size check for decryption CVE-2026-31431 - crypto: afalg - Fix page reassignment overflow in afalgpulltsgl CVE-2026-31431 - crypto: authencesn - reject too-short AAD assoclen8 to match ESP/ESN spec CVE-2026-31431 - crypto: authencesn - Fix src offset when...

Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (April 2026 - Part 1 of 2)

Summary Multiple vulnerabilities have been addressed in Data Virtualization on IBM Software Hub. Note that Data Virtualization was named Watson Query on IBM Cloud Pak for Data version 4.8. Vulnerability Details CVEID:CVE-2026-23949 DESCRIPTION: jaraco.context, an open-source software package that...

[SECURITY] Fedora 43 Update: edk2-20260213-4.fc43

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. This package contains sample 64-bit UEFI firmware builds for QEMU and KVM...

Linux x86 KVM mmu reset_tdp_shadow_zero_bits_mask() Buffer Overflow DoS

The vulnerability of the resettdpshadowzerobitsmask function in the arch/x86/kvm/mmu/mmu.c module of the virtualization subsystem on the x86 architecture of the Linux operating system is related to insufficient validation of input data. Exploiting this vulnerability could allow an attacker to...

Security Bulletin: Multiple vulnerabilities in IBM® Semeru Runtime and IBM SDK, Java™ Technology Edition affect IBM Virtualization Engine TS7700

Summary IBM Virtualization Engine TS7700 is susceptible to Denial of Service CVE-2026-21945, Tampering CVE-2026-21932, Information Disclosure CVE-2026-21933, CVE-2026-21925 and Elevation of Privilege CVE-2026-1188 threats due to the use of IBM Semeru Runtime and IBM SDK, Java Technology Edition...