SB20240531317 - NULL pointer dereference in Linux kernel ethernet microchip driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20240531317

SB20240531317 - NULL pointer dereference in Linux kernel ethernet microchip driver

Published: May 31, 2024 Updated: May 14, 2025

Security Bulletin ID SB20240531317
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-2021-47440)

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

The vulnerability exists due to NULL pointer dereference within the encx24j600_spi_probe() function in drivers/net/ethernet/microchip/encx24j600.c, within the devm_regmap_init_encx24j600() function in drivers/net/ethernet/microchip/encx24j600-regmap.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References