CVE-2026-53331

kernel: slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · July 1, 2026

Updated · July 2, 2026

Description

A flaw was found in the Linux kernel's slimbus subsystem, specifically within the qcom-ngd-ctrl driver. This vulnerability arises from an incorrect ordering of lock acquisitions, known as an ABBA deadlock, when handling System State Reset (SSR) or Power Down Reset (PDR) notifications. A local attacker could potentially trigger this condition, leading to a system deadlock and a denial of service.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-833 · Deadlock