SB20260507140 - Function Call with Incorrectly Specified Arguments in Linux kernel pci endpoint driver



SB20260507140 - Function Call with Incorrectly Specified Arguments in Linux kernel pci endpoint driver

Published: May 7, 2026

Security Bulletin ID SB20260507140
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) Function Call with Incorrectly Specified Arguments (CVE-ID: CVE-2026-43200)

CWE-ID: CWE-628 - Function Call with Incorrectly Specified Arguments

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 handling of callback parameters in pci_primary_epc_epf_unlink() and pci_secondary_epc_epf_unlink() when processing configfs unlink operations. A local user can issue an unlink command in configfs to cause a denial of service.


Remediation

Install update from vendor's website.