ITScape

ITScape: Escape de invitado a anfitrión en KVM/arm64 Resumen Este documento describe la vulnerabilidad ITScape CVE-2026-46316 reportada y parcheada por Hyunwoo Kim @v4bel. Es una vulnerabilidad de escape de KVM que permite a un invitado escapar al anfitrión en un entorno KVM/arm64 y ejecutar...

CVE-2026-89912

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine for ARM64 architecture, specifically within the vgic-its component. A malicious guest virtual machine could trigger a null pointer dereference on the host system during a migration save operation. This could lead to a denial ...

CVE-2026-89912

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 ite-collection but leaves the ITE on the device's ITT list, and vgicitssaveite dereferences it unconditionally. A guest that issues MAPD,...

DEBIAN-CVE-2026-89912

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 ite-collection but leaves the ITE on the device's ITT list, and vgicitssaveite dereferences it unconditionally. A guest that issues MAPD,...

AZL-101547 CVE-2026-89912 affecting package kernel 6.6.152.1-1

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 ite-collection but leaves the ITE on the device's ITT list, and vgicitssaveite dereferences it unconditionally. A guest that issues MAPD,...

CVE-2026-89912 KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save

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 ite-collection but leaves the ITE on the device's ITT list, and vgicitssaveite dereferences it unconditionally. A guest that issues MAPD,...

CVE-2026-89912

CVE-2026-89912 affects the Linux kernel in the KVM arm64 vgic-its subsystem. When a guest issues MAPC with V=0 , the ite->collection pointer is nulled while the ITE remains on the device's ITT list. The function vgic_its_save_ite() then dereferences this NULL pointer unconditionally when the V...

EUVD-2026-80512

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 ite-collection but leaves the ITE on the device's ITT list, and vgicitssaveite dereferences it unconditionally. A guest that issues MAPD,...

Astra Linux – Vulnerabilities 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 in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command...

The vulnerability of the vgic_its_restore_dte() function in the arch/arm64/kvm/vgic/vgic-its.c module of the ARM virtualization subsystem in the 64-bit Linux operating system allows a attacker to access protected information or cause service failure.

The vulnerability of the vgicitsrestoredte function in the arch/arm64/kvm/vgic/vgic-its.c module of the ARM 64-bit kernel-based Linux operating system involves the execution of operations outside the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to access...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-073356)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-073356 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore ...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098888)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098888 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore ...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Remove the reference to the translation cache only for the erased entry. The vgicitsinvalidatecache function iterates through the per-ITS translation cache using xaforeach, and removes the cache reference fo...

SUSE CVE-2026-64106

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that...

CVE-2026-64106

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that...

CVE-2026-64106

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that...

K000162310: Linux kernel vulnerability CVE-2026-46316

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry vgicitsinvalidatecache walks the per-ITS translation cache with xaforeach and drops the cache's reference on each...

Unbreakable Enterprise kernel security update

6.12.0-204.92.4.3 - xfrm: hold dev ref until after transportfinish NFHOOK Qi Tang Orabug: 39727259 CVE-2026-31663 - xfrm: hold device only for the asynchronous decryption Jianbo Liu Orabug: 39727259 - KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry Hyunwoo Kim...

kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for ARM64, specifically within the vgic-its component. This vulnerability occurs when multiple concurrent operations incorrectly drop the translation cache's reference to an entry more than once during cache invalidation. Thi...

kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for ARM64, specifically within the vgic-its component. This vulnerability occurs when multiple concurrent operations incorrectly drop the translation cache's reference to an entry more than once during cache invalidation. Thi...