#VU116804 Improper locking in Linux kernel - CVE-2022-50549
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116804
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-2022-50549
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 __create_persistent_data_objects(), dm_pool_metadata_close() and __set_abort_with_changes_flags() functions in drivers/md/dm-thin-metadata.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/200aa33b5d781e7c0fa6c0c7db9dbcc3f574ce8f
- https://git.kernel.org/stable/c/2d891cc5a1706b6908bceb56af7176a463ee6d62
- https://git.kernel.org/stable/c/7e37578069737b04955c71dd85db8a3bc2709eff
- https://git.kernel.org/stable/c/8111964f1b8524c4bb56b02cd9c7a37725ea21fd
- https://git.kernel.org/stable/c/cdf7a39bcc427febbfe3c3b9fe829825ead96c27
- https://git.kernel.org/stable/c/f8c26c33fef588ee54852cffa7cbb9f9d9869405
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87