CVE Database›Document archive›CVE-2022-28388

CVE-2022-28388

kernel: double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 4, 2022

Updated · June 28, 2026

Description

A double-free flaw was found in the Linux kernel's USB2CAN interface implementation. This issue could allow a local user to crash the system.

Statement

This issue is Moderate because this case doesn't lead to a kernel crash as result of the pointers reference check preventing actual second memory free. The only known attack scenario is the possibility of a denial of service.

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

To mitigate this issue, prevent module usb_8dev from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

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-415 · Double Free