#VU111493 NULL pointer dereference in Linux kernel - CVE-2022-50091
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111493
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-2022-50091
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 csdlock_debug() function in kernel/smp.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/05de9e2e33b1625c71aee69e353fe906dd2be88a
- https://git.kernel.org/stable/c/9c9b26b0df270d4f9246e483a44686fca951a29c
- https://git.kernel.org/stable/c/b480d1e9a8c11ecc1c99dc01814b28e3103bd0a0
- https://git.kernel.org/stable/c/d2cbdbe22b5f190055d2d0ae92e7454479343a30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61