SB20240603112 - NULL pointer dereference in Linux kernel comedi drivers driver



SB20240603112 - NULL pointer dereference in Linux kernel comedi drivers driver

Published: June 3, 2024 Updated: May 14, 2025

Security Bulletin ID SB20240603112
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 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2021-47475)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the IC3_VERSION BIT() and vmk80xx_alloc_usb_buffers() functions in drivers/staging/comedi/drivers/vmk80xx.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.