#VU120707 Use-after-free in Linux kernel - CVE-2023-54280
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120707
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-54280
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the target_share_matches_server() and __tree_connect_dfs_target() functions in fs/cifs/dfs.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/536ec71ba060a02fabe8e22cecb82fe7b3a8708b
- https://git.kernel.org/stable/c/553476df55a111e6a66ad9155256aec0ec1b7ad0
- https://git.kernel.org/stable/c/ee20d7c6100752eaf2409d783f4f1449c29ea33d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4