CVE-2026-23432

kernel: mshv: Fix use-after-free in mshv_map_user_memory error path

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · April 3, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's mshv component. A local user could exploit a use-after-free vulnerability by unmapping memory after a specific error path in the mshv_map_user_memory function. This can cause a system crash (kernel panic) due to the system attempting to access freed memory.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-763 · Release of Invalid Pointer or Reference