UBUNTU-CVE-2026-45987

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpublock Ignore -EBUSY when checking nested events after exiting a blocking state while L2 is active. Exiting to userspace will generate a spurious userspace exit, usually...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007468)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007468 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Prevent access to vCPU events before init Another day, another syzkaller bug. KVM...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992348)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992348 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 Don't BUG/WARN on interrupt...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989806)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989806 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Forcibly leave nested virt when SMM state is toggled Forcibly leave nested virtualizati...

kernel: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVMSETVCPUEVENTS even if having at least...

CVE-2025-40102 KVM: arm64: Prevent access to vCPU events before init

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Prevent access to vCPU events before init Another day, another syzkaller bug. KVM erroneously allows userspace to pend vCPU events for a vCPU that hasn't been initialized yet, leading to KVM interpreting a bunch of...

CVE-2025-40102

CVE-2025-40102 affects the Linux kernel KVM/ARM64: an attacker could access vCPU events before a vCPU is initialized, leading to misinterpretation of uninitialized data and potential exception handling issues. The description and connected advisories (EulerOS kernel advisories) confirm this as a ...

kernel: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVMSETVCPUEVENTS even if having at least...

DEBIAN-CVE-2024-46830

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS Grab kvm-srcu when processing KVMSETVCPUEVENTS, as KVM will forcibly leave nested VMX/SVM if SMM mode is being toggled, and leaving nested VMX reads guest memory. Note,...

UBUNTU-CVE-2024-46830

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS Grab kvm-srcu when processing KVMSETVCPUEVENTS, as KVM will forcibly leave nested VMX/SVM if SMM mode is being toggled, and leaving nested VMX reads guest memory. Note,...

PT-2024-32233

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.10.0-rc7-332d2c1d713e-next-vm 552 Description The issue is related to the KVM Kernel-based Virtual Machine component in the Linux kernel. Specifically, it involves the handling of KVM SET VCPU EVENTS, where KVM...

UBUNTU-CVE-2022-48763

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Forcibly leave nested virt when SMM state is toggled Forcibly leave nested virtualization operation if userspace toggles SMM state via KVMSETVCPUEVENTS or KVMSYNCX86EVENTS. If userspace forces the vCPU out of SMM while...

kvm: x86: zero kvm_vcpu_events->interrupt.pad infoleak

Linux kernel 2.6.33 and 2.6.34.y does not initialize the kvmvcpuevents-interrupt.pad structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via unspecified vectors...