#VU119271 Memory leak in Linux kernel - CVE-2023-53743
Published: December 8, 2025 / Updated: December 12, 2025
Vulnerability identifier: #VU119271
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-2023-53743
CWE-ID: CWE-401
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 memory leak within the pci_register_host_bridge() function in drivers/pci/probe.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/4443f3695d581ad1a55f2ef59259dcd0c52402b3
- https://git.kernel.org/stable/c/8ec9c1d5d0a5a4744516adb483b97a238892f9d5
- https://git.kernel.org/stable/c/a076e73dd6e619729e1af8d0d802fe52ac5eb2b3
- https://git.kernel.org/stable/c/a08713b9d9031683b83b3ecf12bad40a1ca35211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3