#VU120831 Improper error handling in Linux kernel - CVE-2022-50849
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120831
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-2022-50849
CWE-ID: CWE-388
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 error handling within the persistent_ram_vmap() function in fs/pstore/ram_core.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/1579bed1613802a323a1e14567faa95c149e105e
- https://git.kernel.org/stable/c/295f59cd2cdeed841850d02dddde3a122cbf6fc6
- https://git.kernel.org/stable/c/2f82381d0681b10f9ddd27be98c27363b5a3cd1c
- https://git.kernel.org/stable/c/4d3126f242a0090342ffe925c35fb4f4252b7562
- https://git.kernel.org/stable/c/69dbff7d2681c55a4d979fd9b75576303e69979f
- https://git.kernel.org/stable/c/6d9460214e363e1f3d0756ee5d947e76e3e6f86c
- https://git.kernel.org/stable/c/e6b842741b4f39007215fd7e545cb55aa3d358a2
- https://git.kernel.org/stable/c/ebc73c4f266281e2cad1a372ecd81572d95375b6
- https://git.kernel.org/stable/c/fdebcc33b663d2e8da937653ddfbfc1315047eaa
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303