#VU120675 Memory leak in Linux kernel - CVE-2022-50859
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120675
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-2022-50859
CWE-ID: CWE-401
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 memory leak within the smb3_validate_negotiate() function in fs/cifs/smb2pdu.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/60480291c1fcafad8425d93f771b5bcc2bd398b4
- https://git.kernel.org/stable/c/9312e04b6c6bc46354ecd0cc82052a2b3df0b529
- https://git.kernel.org/stable/c/943eb0ede74ecd609fdfd3f0b83e0d237613e526
- https://git.kernel.org/stable/c/d0050ec3ebbcb3451df9a65b8460be9b9e02e80c
- https://git.kernel.org/stable/c/e98ecc6e94f4e6d21c06660b0f336df02836694f
- https://git.kernel.org/stable/c/fada9b8c95c77bb46b89e18117405bc90fce9f74
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3