#VU119728 NULL pointer dereference in Linux kernel - CVE-2023-53807
Published: December 10, 2025 / Updated: December 12, 2025
Vulnerability identifier: #VU119728
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-2023-53807
CWE-ID: CWE-476
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 NULL pointer dereference within the clk_wzrd_register_divider() function in drivers/clk/xilinx/clk-xlnx-clock-wizard.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/25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5
- https://git.kernel.org/stable/c/2f276dd9c0f835242836d9f6823035158ce2585c
- https://git.kernel.org/stable/c/9c632a6396505a019ea6d12b5ab45e659a542a93
- https://git.kernel.org/stable/c/b35cb0c05b8dafe23ae5e8b605a91b88bcf4aba7
- https://git.kernel.org/stable/c/f078a65ebf930f4305e3c415a8338d22391642c9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4