CVE-2026-53370

kernel: perf/x86/intel: Improve validation and configuration of ACR masks

Loading…

Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 19, 2026

Updated · July 30, 2026

Description

A flaw was found in the Linux kernel's performance monitoring unit (perf/x86/intel) related to the validation and configuration of Auto Counter Reload (ACR) masks. Incomplete validation of user-space ACR masks could lead to incorrect configurations. This issue could result in inaccurate performance data or unexpected behavior in systems utilizing ACR events.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-184 · Incomplete List of Disallowed Inputs