SB20241230180 - Improper locking in Linux kernel io_uring
Published: December 30, 2024 Updated: May 11, 2025
Security Bulletin ID
SB20241230180
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-2024-56709)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the io_queue_iowq() 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/2ca94c8de36091067b9ce7527ae8db3812d38781
- https://git.kernel.org/stable/c/4f95a2186b7f2af09331e1e8069bcaf34fe019cf
- https://git.kernel.org/stable/c/534d59ab38010aada88390db65985e65d0de7d9e
- https://git.kernel.org/stable/c/dbd2ca9367eb19bc5e269b8c58b0b1514ada9156
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.122
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.68