SB2025092221 - NULL pointer dereference in Linux kernel ethernet ti driver



SB2025092221 - NULL pointer dereference in Linux kernel ethernet ti driver

Published: September 22, 2025

Security Bulletin ID SB2025092221
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-2025-39856)

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

The vulnerability exists due to NULL pointer dereference within the am65_cpsw_nuss_tx_compl_packets() function in drivers/net/ethernet/ti/am65-cpsw-nuss.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.