SB20260816309 - Improper resource shutdown or release in Linux kernel power supply driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260816309

SB20260816309 - Improper resource shutdown or release in Linux kernel power supply driver

Published: August 16, 2026

Security Bulletin ID SB20260816309
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

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-2026-72214)

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

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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 shutdown or release in cpcap_battery_detect_battery_type() in the cpcap-battery driver when handling battery property reads. A local user can trigger repeated battery property reads to cause a denial of service.

The issue is caused by a missing nvmem_device_put() call on the success and read-failure paths, which can create a permanent reference leak and prevent the nvmem device from being freed.


Remediation

Install update from vendor's website.

References