#VU120771 NULL pointer dereference in Linux kernel - CVE-2023-54264
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120771
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-2023-54264
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 alloc_branch() function in fs/sysv/itree.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/0a44ceba77c3267f8505dda102a59367dc24caee
- https://git.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9
- https://git.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91
- https://git.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635
- https://git.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7
- https://git.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6e
- https://git.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0f
- https://git.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.190
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.126
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.253
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.45
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5