SB20241022115 - Improper locking in Linux kernel io_uring
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022115
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) Improper locking (CVE-ID: CVE-2022-48983)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the io_tctx_exit_cb() function in io_uring/io_uring.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/f895511de9d27fff71dad2c234ad53b4afd2b06c
- https://git.kernel.org/stable/c/d91edca1943453aaaba4f380f6f364346222e5cf
- https://git.kernel.org/stable/c/998b30c3948e4d0b1097e639918c5cff332acac5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1