CVE-2026-46007

kernel: hwmon: (powerz) Avoid cacheline sharing for DMA buffer

Loading…

Severity

Unknown

Red Hat Product Security

—

CVSS

Review impact separately from score.

Published · May 27, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's hwmon (powerz) component. This vulnerability is caused by cacheline sharing between the transfer buffer and a mutex during Direct Memory Access (DMA) operations. This architectural issue can lead to unexpected behavior or data corruption, impacting system stability. The flaw is addressed by using high-level DMA helpers to prevent cacheline sharing.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-821 · Incorrect Synchronization