#VU111580 Improper locking in Linux kernel - CVE-2022-50090
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111580
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-2022-50090
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 btrfs_check_zoned_mode() function in fs/btrfs/zoned.c, within the btrfs_run_delalloc_range(), btrfs_split_delalloc_extent() and btrfs_merge_delalloc_extent() functions in fs/btrfs/inode.c, within the find_lock_delalloc_range() function in fs/btrfs/extent_io.c, within the btrfs_init_fs_info() function in fs/btrfs/disk-io.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/096e8eb9639b342bc35f9b741cf05e26d0106e92
- https://git.kernel.org/stable/c/1aa262c1d056551dd1246115af8b7e351184deae
- https://git.kernel.org/stable/c/6cb4b96df97082a54634ba02196516919cda228c
- https://git.kernel.org/stable/c/f7b12a62f008a3041f42f2426983e59a6a0a3c59
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0