SB20260816468 - Improper control of a resource through its lifetime in Linux kernel net wan driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260816468

SB20260816468 - Improper control of a resource through its lifetime in Linux kernel net wan driver

Published: August 16, 2026

Security Bulletin ID SB20260816468
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 control of a resource through its lifetime (CVE-ID: CVE-2026-72058)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

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 resource management in ixp4xx_hss_probe() when allocating and registering HDLC netdev objects. A local user can trigger device initialization and removal to cause a denial of service.

The issue stems from allocating two different netdev objects and later unregistering and freeing a different object than the one that was registered.


Remediation

Install update from vendor's website.

References