SB20260508106 - Improper resource shutdown or release in Linux kernel usb image driver

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Main Vulnerability Database SB20260508106

SB20260508106 - Improper resource shutdown or release in Linux kernel usb image driver

Published: May 8, 2026

Security Bulletin ID SB20260508106
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) Improper resource shutdown or release (CVE-ID: CVE-2026-43425)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 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/E:U/U:Clear


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

The vulnerability exists due to improper resource shutdown in mdc800_device_read() when handling USB read timeouts. A local user can trigger a timeout and resubmit the same URB while it is still active to cause a denial of service.

The issue is triggered on a subsequent read operation after a prior timeout leaves the download URB in flight.


Remediation

Install update from vendor's website.

References