#VU104682 Improper locking in Linux kernel - CVE-2022-49706
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104682
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-2022-49706
CWE-ID: CWE-667
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 locking within the zonefs_i_size_write(), zonefs_iomap_begin(), zonefs_map_blocks(), zonefs_swap_activate(), zonefs_filemap_page_mkwrite(), zonefs_file_dio_write(), zonefs_file_buffered_write() and zonefs_file_read_iter() functions in fs/zonefs/super.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/355be6131164c5bacf2e810763835aecb6e01fcb
- https://git.kernel.org/stable/c/3a7f05f104347b407e865c10be2675cd833a4e48
- https://git.kernel.org/stable/c/c1c1204c0d0c1dccc1310b9277fb2bd8b663d8fe
- https://git.kernel.org/stable/c/c2f71b9bb398e2e573bdc2574149f42b45efe410
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.50