SB2025031032 - Resource management error in Linux kernel io_uring



SB2025031032 - Resource management error in Linux kernel io_uring

Published: March 10, 2025 Updated: May 11, 2025

Security Bulletin ID SB2025031032
CSH 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 vulnerability.


1) Resource management error (CVE-ID: CVE-2025-21837)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to corrupt data.

The vulnerability exists due to improper management of internal resources within the io_uring_cmd_done(), io_uring_cmd_prep_setup() and io_uring_cmd() functions in io_uring/uring_cmd.c. A local user can corrupt data.


Remediation

Install update from vendor's website.