CVE-2022-50642

kernel: platform/chrome: cros_ec_typec: zero out stale pointers

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · December 9, 2025

Updated · June 30, 2026

Description

A use-after-free vulnerability exists in the Chrome EC Type-C driver in the Linux kernel. When cros_typec_get_switch_handles() fails to obtain switch handles, it frees allocated pointers but doesn't zero them out. These stale pointers can later be dereferenced, causing use-after-free or double-free conditions.

Statement

This vulnerability is specific to ChromeOS/Chromebook hardware using the Chrome Embedded Controller for USB Type-C management. Standard Linux systems without this hardware are unaffected.

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-825 · Expired Pointer Dereference