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CVE-2025-68370

kernel: Linux kernel: Coresight TMC vulnerability leads to denial of service

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Severity

Important

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · August 14, 2026

Description

A flaw was found in the Linux kernel's Coresight Trace Memory Controller (TMC) component. A missing handle for the AUX_EVENT in the coresight_path when in performance (perf) mode allows a local user to trigger a kernel paging request error. This can lead to a system crash, 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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-824 · Access of Uninitialized Pointer