#VU111329 Memory leak in Linux kernel - CVE-2022-50076
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111329
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-2022-50076
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 cifs_close_deferred_file(), cifs_close_all_deferred_files() and cifs_close_deferred_file_under_dentry() functions in fs/cifs/misc.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/60b6d38add7b9c17d6e5d49ee8e930ea1a5650c5
- https://git.kernel.org/stable/c/860efae127888ae535bc4eda1b7f27642727c69e
- https://git.kernel.org/stable/c/ca08d0eac020d48a3141dbec0a3cf64fbdb17cde
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.63
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0