#VU96429 Improper locking in Linux kernel - CVE-2022-48937
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96429
Vulnerability risk: Low
CVSSv4.0: 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-2022-48937
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the io_add_buffers() function in fs/io_uring.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4
- https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00
- https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a
- https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.103
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17