PT-2025-30134 · Microsoft+8 · Hyper-V+8
Published
2025-06-25
·
Updated
2026-04-20
·
CVE-2025-38351
CVSS v2.0
6.8
Medium
| Vector | AV:L/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw in the KVM component related to handling hypercalls
HVCALL FLUSH VIRTUAL ADDRESS LIST and HVCALL FLUSH VIRTUAL ADDRESS LIST EX within KVM guests utilizing Hyper-V hypercalls. The vulnerability occurs when non-canonical Guest Virtual Addresses (GVAs) are passed during a virtual TLB flush request. Specifically, Intel’s INVVPID instruction signals a VM-Fail when processing these non-canonical addresses, leading to a warning. Hyper-V documentation indicates that invalid GVAs should be ignored, and testing confirms this behavior in real Hyper-V environments.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Hyper-V
Intel Invvpid
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu