EUVD-2025-37345

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...

EUVD-2025-37346

When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the permission leak allo...

CVE-2025-58148

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-2025-58149

When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the permission leak allo...

ALPINE-CVE-2025-58149

When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the permission leak allo...

ALPINE-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...

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-2025-58149

When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the permission leak allo...

CVE-2025-58147

CVE-2025-58147 and CVE-2025-58148 describe Xen hypervisor boundary-checking bugs in Viridian hypercalls. Affected: hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting bitmaps; any input format can cause send_ipi() to read d->vcpu[] out-of-...

CVE-2025-58148

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-2025-58148

Xen hypervisor vulnerability CVE-2025-58148 arises from Viridian hypercalls accepting vCPU ID masks in any input format. The flaw can cause send_ipi() to read d->vcpu[] out-of-bounds and operate on a wild vCPU pointer, enabling out-of-bounds reads/writes. Connected advisories confirm impact on...

CVE-2025-58148 x86: Incorrect input sanitisation in Viridian hypercalls

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...

vfs: Don't leak disconnected dentries on umount

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KVM: arm64: Prevent access to vCPU events before init

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SUSE CVE-2025-40102

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...

USN-7850-1: Linux kernel vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

EUVD-2025-36973

In the Linux kernel, the following vulnerability has been resolved: vfs: Don't leak disconnected dentries on umount When user calls openbyhandleat on some inode that is not cached, we will create disconnected dentry for it. If such dentry is a directory, exportfsdecodefhraw will then try to conne...

EUVD-2025-36976

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-2025-23352

NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause uninitialized pointer access. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data...