Input validation error in Linux kernel - CVE-2023-53461
Published: October 1, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116333
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53461
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the io_ring_exit_work() function in io_uring/io_uring.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2023-53461
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/28e649dc9947e6525c95e32aa9a8e147925e3f56
- https://git.kernel.org/stable/c/4826c59453b3b4677d6bf72814e7ababdea86949
- https://git.kernel.org/stable/c/58e80cb68b057e974768792c34708c6957810486
- https://git.kernel.org/stable/c/8e29835366138389bfad3b31ea06960d0a77bf77
- https://git.kernel.org/stable/c/b50d6e06cca7b67a3d73ca660dda27662b76e6ea
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39