CVE-2026-68369

kernel: usb: gadget: printer: fix infinite loop in printer_read()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 10, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's USB gadget printer driver. An attacker, by providing specific input to the printer_read() function, could trigger an infinite loop. This vulnerability occurs when the copy_to_user() function fails to copy data, leading to a denial of service condition where the system becomes unresponsive.

Statement

This issue affects USB gadget printer function. printer_read() infinite loop when copy_to_user returns bytes-not-copied equal to request size. USB gadget printer mode only.

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-835 · Loop with Unreachable Exit Condition ('Infinite Loop')