PT-2026-37473

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nSVM component where the VMLOAD/VMSAVE emulation code fails to consistently use vmcb01. When VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by...

PT-2026-37605

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 component where the system fails to ignore -EBUSY when checking nested events from the vcpu block function after exiting a blocking state while L2 is activ...

Linux kernel 安全漏洞

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...

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...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: MIPS: KVM: Fix for NULL pointer dereferencing After committing change 45c7e8af4a5e3f0bea4ac209 “MIPS: Remove KVMTE support”, we encountered a NULL pointer dereferencing issue when creating a KVM guest: 146.243409 Starting KVM wit...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: Accommodation for VMA splitting Before this commit, the gntdev driver code did not handle the following scenario correctly with paravirtualized PV Xen domains: The user process sets up a gntdev mapping consisting of t...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: The existing SPTE is preserved even when creating an MMIO SPTE. When installing an emulated MMIO SPTE, do so after preserving the existing SPTE if it is shadow-present. However, the fix proposed in commit 54aa15c6bd...

Astra Linux - уязвимость в amd64-microcode

Secure Encrypted Virtualization SEV on the Advanced Micro Devices AMD Platform Security Processor PSP; also known as AMD Secure Processor or AMD-SP 0.17 build 11 and earlier has an insecure cryptographic implementation...

Astra Linux - уязвимость в amd64-microcode

Improper signature verification in the AMD CPU ROM microcode patch loader may allow an attacker with local administrator privileges to load malicious CPU microcode, resulting in a loss of confidentiality and integrity for confidential guests running under AMD SEV-SNP...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protecting of L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs. This ensures that the TDP MMU takes into...

Astra Linux - уязвимость в linux-5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX – Prevent RSB underflow before vmenter On VMX, there is some timing balance between the time the guest’s SPECCTRL value is written and the vmenter. Balanced returns matched by a preceding call are usually acceptable...

Astra Linux - уязвимость в linux-5.15

A race condition in the x86 KVM subsystem within the Linux kernel, as of 6.1-rc6, allows guest OS users to cause a denial of service host OS crash or host OS memory corruption when nested virtualization is enabled and the TDP MMU is also enabled...

Astra Linux - уязвимость в linux

A vulnerability was discovered in the Linux kernel before version 5.9. Arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service soft lockup by triggering the destruction of a large SEV VM, which requires unregistering many encrypted regions. This vulnerability is also known as...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Flushing pages under kvm-lock to fix UAF in svmregisterencregion Perform the cache flushing of the converted pages in svmregisterencregion before releasing kvm-lock to fix use-after-free issues where the region and/or i...

Astra Linux - уязвимость в linux

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/eventsbase.c allows event-channel removal during the event-handling loop a race condition. This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash vi...