CVE-2026-63862

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2026-07-19 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek-gen3: Prevent leaking IRQ domains when IRQ not found In mtk_pcie_setup_irq(), the IRQ domains are allocated before the controller's IRQ is fetched. If the latter fails, the function directly returns an error, without cleaning up the allocated domains. Hence, reverse the order so that the IRQ domains are allocated after the controller's IRQ is found. This was flagged by Sashiko during a review of "[PATCH v6 0/7] PCI: mediatek-gen3: add power control support".