Improper locking in Linux kernel - CVE-2023-53777
Published: December 10, 2025 / Updated: December 12, 2025
Vulnerability identifier: #VU119755
CSH Severity: Low
CVSS v4.0: 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-2023-53777
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the z_erofs_init_zip_subsystem(), z_erofs_try_to_claim_pcluster(), z_erofs_register_pcluster(), z_erofs_collector_begin(), z_erofs_do_read_page(), z_erofs_decompress_queue(), z_erofs_decompressqueue_work(), jobqueue_init(), move_to_bypass_jobqueue() and z_erofs_submit_queue() functions in fs/erofs/zdata.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2023-53777
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/10c2b98a40d9044a3e97f4697ca6213bad7e19c2
- https://git.kernel.org/stable/c/967c28b23f6c89bb8eef6a046ea88afe0d7c1029
- https://git.kernel.org/stable/c/b5b0d52f00e4bacb0ebdf47cd7016b0485fffad2
- https://git.kernel.org/stable/c/d3b39ea24835ac03da1a30f93ae7c05d55a40191
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39