SB20260816482 - Improper resource shutdown or release in Linux kernel char ipmi driver

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Main Vulnerability Database SB20260816482

SB20260816482 - Improper resource shutdown or release in Linux kernel char ipmi driver

Published: August 16, 2026

Security Bulletin ID SB20260816482
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-2026-72040)

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 i_ipmi_request() in the IPMI message handler when handling a request with a caller-supplied recv_msg and an error occurs. A local user can trigger an error path using a supplied receive message to cause a denial of service.

The issue occurs because the reference count on the associated user object remains elevated on certain error paths.


Remediation

Install update from vendor's website.

References