Memory leak in Linux kernel - CVE-2023-53443
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115830
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-2023-53443
CWE-ID: CWE-401
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 memory leak within the arizona_clk32k_enable() function in drivers/mfd/arizona-core.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2023-53443
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/4414a7ab80cebf715045e3c4d465feefbad21139
- https://git.kernel.org/stable/c/5a47bb71b1a94a279144fc3031d3c4591b38dd16
- https://git.kernel.org/stable/c/7195e642b49af60d4120fa1b45bd812ba528174f
- https://git.kernel.org/stable/c/754e81ff44061dda68da0fd4ef51bd1aa9fbf2cf
- https://git.kernel.org/stable/c/9893771097b22a8743a446e45994a177795ca4da
- https://git.kernel.org/stable/c/dc9437e9889c3dacf1f320e3cf08da74127573fe
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5