#VU120710 Use-after-free in Linux kernel - CVE-2023-54262
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120710
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-2023-54262
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 drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_act.h. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/2d57a514f9ab7d2d40f49b02d93edfcec8c78a9e
- https://git.kernel.org/stable/c/8fd1dac646e6b08d03e3f1ad3c5b34255b1e08e8
- https://git.kernel.org/stable/c/c382b693ffcb1f1ebf60d76ab9dedfe9ea13eedf
- https://git.kernel.org/stable/c/e9fce818fe003b6c527f25517b9ac08eb4661b5d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.28
- 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