NULL pointer dereference in Linux kernel - CVE-2023-52506
Published: June 5, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91243
CSH Severity: 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-2023-52506
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 memblock_init() function in arch/loongarch/kernel/mem.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/f105e893a8edd48bdf4bef9fef845a9ff402f737
- https://git.kernel.org/stable/c/19878758accf6b2788091a771d9f9fee7bab11ab
- https://git.kernel.org/stable/c/b795fb9f5861ee256070d59e33130980a01fadd7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.56
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6