SB2026032096 - Exposed IOCTL with Insufficient Access Control in Linux kernel cavium liquidio driver

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Main Vulnerability Database SB2026032096

SB2026032096 - Exposed IOCTL with Insufficient Access Control in Linux kernel cavium liquidio driver

Published: March 20, 2026

Security Bulletin ID SB2026032096
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) Exposed IOCTL with Insufficient Access Control (CVE-ID: CVE-2026-23257)

CWE-ID: CWE-782 - Exposed IOCTL with Insufficient Access Control

CVSSv4: 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/E:U/U:Clear


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

The vulnerability exists due to an off-by-one error in the PF setup_nic_devices() function in the liquidio network driver when handling device initialization cleanup. A local user can trigger improper cleanup of allocated resources to cause a denial of service.

The vulnerability specifically results in a memory leak during device setup failure, which may lead to resource exhaustion over time. Administrative privileges are required to trigger the device setup process.


Remediation

Install update from vendor's website.

References