CVE-2026-43096
kernel: mshv: Fix infinite fault loop on permission-denied GPA intercepts
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · May 6, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's mshv component. A malicious guest operating system could exploit this by attempting to write to read-only memory regions or execute code in non-executable regions. This can lead to an infinite fault loop, causing the virtual CPU (vCPU) to spin indefinitely and consume host resources, resulting in a Denial of Service (DoS) for the host system.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-280 · Improper Handling of Insufficient Permissions or Privileges