#VU120443 NULL pointer dereference in Linux kernel - CVE-2023-54156
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120443
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-2023-54156
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 efx_ef10_fini_nic() and efx_ef10_update_stats_pf() functions in drivers/net/ethernet/sfc/ef10.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/446f5567934331923d0aec4ce045e4ecb0174aae
- https://git.kernel.org/stable/c/470152d76b3ed107d172ea46acc4bfa941f20b4b
- https://git.kernel.org/stable/c/91f4ef204e731565afdc6c2a7fcf509a3fd6fd67
- https://git.kernel.org/stable/c/aba32b4c58112960c0c708703ca6b44dc8944082
- https://git.kernel.org/stable/c/cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb
- https://git.kernel.org/stable/c/d1b355438b8325a486f087e506d412c4e852f37b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13
- 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