CVE-2026-46034

kernel: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 27, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's vfio/cdx module. A local user can cause a system crash by improperly configuring Message Signaled Interrupts (MSI) before they are set up. This can lead to a NULL pointer dereference, resulting in a Denial of Service (DoS) for the system.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-909 · Missing Initialization of Resource