CVE-2026-98877
kernel: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 26, 2026
Description
A flaw was found in the Linux kernel's ARM Generic Interrupt Controller (GIC) driver. When virtual interrupt support is enabled on a system lacking an Interrupt Translation Service (ITS) controller, the kernel fails to disable virtual interrupt advertising. A local user capable of running a virtual machine under these conditions can trigger an unhandled null pointer dereference, causing a kernel crash and resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference