ITScape

ITScape: Guest-to-Host Escape in KVM/arm64 Abstract This document describes the ITScape CVE-2026-46316 vulnerability reported and patched by Hyunwoo Kim @v4bel. It is a KVM escape vulnerability that lets a guest escape to the host in a KVM/arm64 environment and run commands on the host with kerne...

ITS

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Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save CVE-2026-89912 In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Preserve TLB control i.e. pending TLB flush on...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-151155)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-151155 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save MAPC with V=0 drops...

Astra Linux – vulnerability in linux-6.1, linux-6.12, linux-6.18

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Prevent leak in itsvpeirqdomainalloc When itsirqgicdomainalloc fails, the following itsvpeirqdomainfree fails to invoke itsvepteardown for the corresponding interrupt, resulting in a resource leak. Invoke...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-146636)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146636 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save MAPC with V=0 drops...

DEBIAN-CVE-2026-98877

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed When accidentally setting “kvm-arm.vgicv4enable=1” on a system that has no MSI controller device tree node and GICv4, it results a panic as “gicdomain” is NULL and the...

CVE-2026-98877

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed When accidentally setting “kvm-arm.vgicv4enable=1” on a system that has no MSI controller device tree node and GICv4, it results a panic as “gicdomain” is NULL and the...

EUVD-2026-108723

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed When accidentally setting “kvm-arm.vgicv4enable=1” on a system that has no MSI controller device tree node and GICv4, it results a panic as “gicdomain” is NULL and the...

CVE-2026-98877

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed When accidentally setting “kvm-arm.vgicv4enable=1” on a system that has no MSI controller device tree node and GICv4, it results a panic as “gicdomain” is NULL and the...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions prior to 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 6.18.53. This vulnerability arises from the failure to disable VLPI when ITS is not detected. When the setting vmnicgicv4enable=1 is incorrectly configured on systems lacking MSI...

EUVD-2026-107640

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by...

CVE-2026-76300

The vulnerability CVE-2026-76300 affects Splunk Enterprise as part of a software hardening release by Cisco . It is caused by improper control of a resource through its lifetime (CWE-664) following an internal security review. While the technical root cause is grouped under this CWE, specific com...

CVE-2026-76300 Security Hardening in Splunk Enterprise - October 2026

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by...

PT-2026-120858

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by...

PT-2026-120869

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by...

Siemens SIMATIC S7-1500 TM MFP Improper Control of a Resource Through its Lifetime (CVE-2026-43503)

"In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers pskbcopyfclone and skbshift fail to propagate the SKBFLSHAREDFRAG bit in skbshinfo-flags when moving frags from source to...

Siemens SIMATIC S7-1500 TM MFP Improper Control of a Resource Through its Lifetime (CVE-2026-23253)

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Prevent double free on error The error handling path in itsvpeirqdomainalloc causes a double free when itsvpeinit fails after successfully allocating at least one interrupt. This happens because...

Astra Linux – vulnerability in linux, linux-5.10, linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario when an LPI translation cache hit occurs concurrently with an operation that invalidates the cache, such as a DISCARD ITS comman...