#VU117593 Improper locking in Linux kernel - CVE-2023-53730
Published: October 23, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU117593
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-2023-53730
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 adjust_inuse_and_calc_cost() function in block/blk-iocost.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/3376c4fe2db4aea2dc721a27a999c41fdb45b54f
- https://git.kernel.org/stable/c/8563b58a4360e648ce18f0e98a75a4be51667431
- https://git.kernel.org/stable/c/8ceeb3fc86a83700bb1585c189006080a47e8506
- https://git.kernel.org/stable/c/8d211554679d0b23702bd32ba04aeac0c1c4f660
- https://git.kernel.org/stable/c/9279a1b74ad98039d5d44d26b9e7a9cfe655b6d3
- https://git.kernel.org/stable/c/eb120c0aff5ceab9c9c46b87f302465bbf2bbaed
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121