#VU116291 Incorrect calculation in Linux kernel - CVE-2022-50456
Published: October 1, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116291
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-2022-50456
CWE-ID: CWE-682
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 incorrect calculation within the add_all_parents() function in fs/btrfs/backref.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/0061ab5153fb8bc574b44fbb773680d0ede48c9c
- https://git.kernel.org/stable/c/560840afc3e63bbe5d9c5ef6b2ecf8f3589adff6
- https://git.kernel.org/stable/c/645e2dac6e97f756f28a2f82b2e7bf7f29a68827
- https://git.kernel.org/stable/c/99590f29b2b7567fda2b503aa3d81a0d3e09dce5
- https://git.kernel.org/stable/c/a94b90ac1f251d1007c0c43ee289a61b50f2505f
- https://git.kernel.org/stable/c/c59ee1528b3432ec9dca220567f7eb507820917a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229