SB20260812160 - Infinite loop in Linux kernel gadget function driver

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Main Vulnerability Database SB20260812160

SB20260812160 - Infinite loop in Linux kernel gadget function driver

Published: August 12, 2026

Security Bulletin ID SB20260812160
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Infinite loop (CVE-ID: CVE-2026-68369)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of copy_to_user() results in printer_read() in the USB gadget printer function when processing read requests with an unwritable user buffer. A local user can trigger a read operation with an unwritable user buffer to cause a denial of service.

The issue can result in an infinite loop if RX data is available and an iteration makes no progress.


Remediation

Install update from vendor's website.

References