#VU120720 Use-after-free in Linux kernel - CVE-2023-54201
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120720
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-2023-54201
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 efa_destroy_qp() and efa_destroy_cq() functions in drivers/infiniband/hw/efa/efa_verbs.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/24f9884971f9b34915b67baacf7350a3f6f19ea4
- https://git.kernel.org/stable/c/cf38960386f3cc4abf395e556af915e4babcafd2
- https://git.kernel.org/stable/c/dc202c57e9a1423aed528e4b8dc949509cd32191
- https://git.kernel.org/stable/c/e79db2f51a564fd4daa3e508b987df5e81c34b20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.16