ITScape

ITScape: الهروب من الضيف إلى المضيف في KVM/arm64 الملخص يصف هذا المستند الثغرة الأمنية ITScape CVE-2026-46316 التي أبلغ عنها وعالجها Hyunwoo Kim @v4bel. وهي ثغرة هروب من KVM تتيح للضيف الهروب إلى المضيف في بيئة KVM/arm64 وتنفيذ أوامر على المضيف بامتياز النواة الجذر. وفقًا لأفضل ما هو معروف علنًا،...

kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it

A flaw was found in the KVM Kernel-based Virtual Machine arm64 vgic Virtual Generic Interrupt Controller component of the Linux kernel. During interrupt migration, the vgicpruneaplist function temporarily drops and reacquires locks. If an interrupt is removed from the active processor list aplist...

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-v2: Check whether the vCPU is not NULL in vgicv2parseattr. vgicv2parseattr is responsible for finding the vCPU that matches the user-provided CPUID. This CPUID may, of course, be invalid. If the ID is invalid,...

SUSE 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,...

SUSE CVE-2026-89913

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

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 ...

DEBIAN-CVE-2026-89913

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

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 6.6.157.1-1

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-2026-89913

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

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,...

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,...

CVE-2026-89913 KVM: arm64: vgic-v3: take an LPI reference in vgic_v3_save_pending_tables

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

EUVD-2026-80513

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

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-2026-89913 KVM: arm64: vgic-v3: take an LPI reference in vgic_v3_save_pending_tables

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...

PT-2026-93554

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the Linux kernel KVM arm64 vgic-v3 component, the vgic v3 save pending tables function iterates through dist-lpi xa using xa for each and dereferences the returned struct vgic irq...

PT-2026-93553

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM arm64 vgic-its component where the vgic its save ite function unconditionally dereferences a NULL collection. This occurs when a guest issues a sequence of MAP...

CVE-2026-89912: Undefined Security Weakness

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,...