#VU120767 NULL pointer dereference in Linux kernel - CVE-2023-54276
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120767
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-2023-54276
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 nfsd_init_net() function in fs/nfsd/nfsctl.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/3025d489f9c8984d1bf5916c4a20097ed80fca5c
- https://git.kernel.org/stable/c/66a178177b2b3bb1d71e854c5e7bbb320eb0e566
- https://git.kernel.org/stable/c/768c408594b52d8531e1a8ab62e5620c19213e73
- https://git.kernel.org/stable/c/8549384d0f65981761fe2077d04fa2a8d37b54e0
- https://git.kernel.org/stable/c/ed9ab7346e908496816cffdecd46932035f66e2e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.226
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.166
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.106
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5