SB20250226677 - Race condition within a thread in Linux kernel ipv4



SB20250226677 - Race condition within a thread in Linux kernel ipv4

Published: February 26, 2025 Updated: May 11, 2025

Security Bulletin ID SB20250226677
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Race condition within a thread (CVE-ID: CVE-2022-49574)

The vulnerability allows a local user to corrupt data.

The vulnerability exists due to a data race within the tcp_rack_reo_wnd() and tcp_rack_update_reo_wnd() functions in net/ipv4/tcp_recovery.c, within the tcp_init_undo() function in net/ipv4/tcp_input.c. A local user can corrupt data.


Remediation

Install update from vendor's website.