CVE-2021-38204

kernel: use-after-free and panic in drivers/usb/host/max3421-hcd.c by removing a MAX-3421 USB device in certain situations

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Severity

Moderate

Red Hat Product Security

6.6

CVSS 3.1

Review impact separately from score.

Published · July 21, 2021

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel. A denial of service attack (use-after-free and panic) can be caused by a physically proximate attack by removing a MAX-3421 USB device in certain situations. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Statement

There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.

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 · 6.6
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free