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...

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...

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...

CVE-2025-58147

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause...

CVE-2025-58147

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause...

Linux Distros Unpatched Vulnerability : CVE-2020-29570

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is...

Linux Distros Unpatched Vulnerability : CVE-2025-38455

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Red Hat Enterprise Linux - kernel: KVM: SVM: Reject SEV-ES intra host migration if vCPU creation is in- flight Ubuntu Linux - In the Linux kernel, the following...

SUSE CVE-2025-38455

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Reject SEV-ES intra host migration if vCPU creation is in-flight Reject migration of SEV-ES state if either the source or destination VM is actively creating a vCPU, i.e. if kvmvmioctlcreatevcpu is in the section betwee...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has a security vulnerability that stems from DR6 being loaded only before entering the .vcpurun loop...

kernel: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE

A flaw was found in the Linux kernel. A race condition exists in the irqchip/gic-v4 component, where a local user can force a change of affinity for a Virtual Processing Element VPE after it has been unmapped. This occurs because the corresponding doorbell interrupt remains visible, creating a...

AZL-53712 CVE-2024-50192 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE Kunkun Jiang reported that there is a small window of opportunity for userspace to force a change of affinity for a VPE while the VPE has already been unmapped, but the...

PT-2024-35642

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue arises from the improper use of userspace irqchip in use in the Linux kernel, specifically in the KVM arm64 component. This leads to a WARN ON in kvm timer update irq. The...

kernel: irqchip/gic-v3-its: Fix potential VPE leak on error

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which...

kernel: irqchip/gic-v3-its: Fix potential VPE leak on error

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which...

UBUNTU-CVE-2021-47373

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which...

UBUNTU-CVE-2024-26691

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix circular locking dependency The rule inside kvm enforces that the vcpu-mutex is taken inside kvm-lock. The rule is violated by the pkvmcreatehypvm which acquires the kvm-lock while already holding the vcpu-mutex...

The vulnerability of the kvm_steal_time_set_preempted() function in the arch/x86/kvm/x86.c module of the Linux operating system allows a hacker to gain access to protected information.

The vulnerability of the kvmstealtimesetpreempted function in the arch/x86/kvm/x86.c module of the Linux operating system’s kernel is related to incorrect status messages for virtual processors. Exploiting this vulnerability could allow an attacker to gain access to protected information...

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...

SUSE CVE-2014-6268

The evtchnfifosetpending function in Xen 4.4.x allows local guest users to cause a denial of service host crash via vectors involving an uninitialized FIFO-based event channel control block when 1 binding or 2 moving an event to a different VCPU...

kernel: irqchip/gic-v3-its: Fix potential VPE leak on error

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which...