#VU120782 NULL pointer dereference in Linux kernel - CVE-2023-54192
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120782
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-2023-54192
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 __replace_atomic_write_block() function in fs/f2fs/segment.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/1424358cd66c49460493293497b54cb72e0213cc
- https://git.kernel.org/stable/c/424f8cdc0ad29e4940be96dcc0b935ba497adeda
- https://git.kernel.org/stable/c/da6ea0b050fa720302b56fbb59307e7c7531a342
- https://git.kernel.org/stable/c/e2bbefc1741cb0732c13652be173da02f25611d1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.3