SB20240624129 - Resource management error in Linux kernel fs
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240624129
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2021-46942)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the io_uring_del_task_file(), io_sq_thread(), tctx_inflight(), io_sqpoll_cancel_sync(), __io_uring_files_cancel() and io_uring_cancel_sqpoll() functions in fs/io_uring.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.