kernel: i40e: add validation for ring_len param

A flaw was identified in the Intel “i40e” Ethernet driver in the Linux Kernel where the ringlen parameter supplied by a VF virtual function is passed unchecked to the hardware memory context. If a malicious Virtual function provides a too-large or misaligned ringlen, it may allow the device to...

kernel: KVM: arm64: Tear down vGIC on failed vCPU creation

A use-after-free flaw was found in KVM for arm64 in the Linux Kernel, if the kvmarchvcpucreate fails to share the vCPU page with the hypervisor. This vulnerability could even lead to a kernel information leak problem...

kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free

A use-after-free vulnerability was found in the Linux kernel Intel i915 graphics driver's GuC virtual engine request handling. A local user with access to GPU rendering can create requests on GuC virtual engines and trap references via syncfile or dmabuf, causing fence release operations to acces...

Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt 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...

PT-2026-54600

Уязвимость компонента NVIDIA Virtual GPU Manager драйвера виртуальных графических процессоров NVIDIA Virtual GPU связана с использованием памяти после ее освобождения. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемо...

PT-2026-54599

Уязвимость компонентов Guest driver драйвера виртуальных графических процессоров NVIDIA Virtual GPU связана с целочисленным переполнением. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации...

PT-2026-54601

Уязвимость компонентов NVIDIA Virtual GPU Manager и Guest driver драйвера виртуальных графических процессоров NVIDIA Virtual GPU связана с целочисленным переполнением. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемо...

Container management system CRLF Command Execution

The vulnerability of the container management system and the virtual machine manager Incus is related to the failure to take measures to neutralize CRLF sequences. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

Incus Path Traversal Command Execution

The vulnerability of the container management system and the virtual machine manager Incus is related to an incorrect limitation on the path name to the catalog. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

PT-2026-5172

NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause heap memory access after the memory is freed. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, or...

CVE-2026-23553

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...

NVIDIA vGPU resource management error vulnerability

NVIDIA vGPU is a virtual GPU technology developed by NVIDIA Corporation in the United States. NVIDIA vGPU has a resource management vulnerability, which stems from issues with the virtual GPU manager regarding reusing resources after release. This vulnerability may lead to code execution, privile...

CVE-2025-33220: Use After Free

NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause heap memory access after the memory is freed. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, or...

Security update for xen

This update for xen fixes the following issues: CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation XSA-479 bsc1256747 Special Instructions and Notes: Please reboot the system after installing this update...

SUSE-SU-2026:0306-1 Security update for xen

This update for xen fixes the following issues: - CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 - CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation XSA-479 bsc1256747...

Security update for xen

This update for xen fixes the following issues: Security fixes: CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation XSA-479 bsc1256747 CVE-2025-58149: Fixed incorrect removal od permissions on PCI device...

x86: incomplete IBPB for vCPU isolation

ISSUE DESCRIPTION In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CP...

varstored: TOCTOU issues with mapped guest memory

ISSUE DESCRIPTION varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the...

CVE-2026-21417

Dell CloudBoost Virtual Appliance, versions prior to 19.14.0.0, contains a Plaintext Storage of Password vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges...

CVE-2026-21417

Dell CloudBoost Virtual Appliance versions prior to 19.14.0.0 are affected by a plaintext storage of passwords vulnerability, enabling a high-privilege attacker with remote access to potentially achieve elevation of privileges. These CVE-2026-21417 details are corroborated by multiple sources (Re...