#VU115931 NULL pointer dereference in Linux kernel - CVE-2022-50381
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115931
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-2022-50381
CWE-ID: CWE-476
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 NULL pointer dereference within the md_end_flush() and super_written() functions in drivers/md/md.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/341097ee53573e06ab9fc675d96a052385b851fa
- https://git.kernel.org/stable/c/384ef33d37cefb2ac539d44597d03f06c9b8975c
- https://git.kernel.org/stable/c/732cd66ec19a17f2b9183d7d5b7bdb9c39b0776e
- https://git.kernel.org/stable/c/842f222fc42a9239831e15b1fd49a51c546902cb
- https://git.kernel.org/stable/c/91bd504128a51776472445070e11a3b0f9348c90
- https://git.kernel.org/stable/c/97ce99984be12b9acb49ddce0f5d8ebb037adbb6
- https://git.kernel.org/stable/c/ae7793027766491c5f8635b12d15a5940d3b8698
- https://git.kernel.org/stable/c/b5be563b4356b3089b3245d024cae3f248ba7090
- https://git.kernel.org/stable/c/cf06b162f5b6337b688072a1a47941280b8f7110
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303