Use After Free in Linux
CVE-2023-54207
In the Linux kernel, the following vulnerability has been resolved: HID: uclogic: Correct devm device reference for hidinput input_dev name Reference the HID device rather than the input device for the devm allocation of the input_dev name. Referencing the input_dev would lead to a use-after-free when the input_dev was unregistered and subsequently fires a uevent that depends on the name. At the point of firing the uevent, the name would be freed by devres management. Use devm_kasprintf to simplify the logic for allocating memory and formatting the input_dev name string.
Vulnerability class: Use-After-Free
EPSS: 0.001 (3.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions cce2dbdf258e6b27b2b100f511531edabb77f427, 4.1, 0
- Linux Linux_kernel
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-54207?
- CVE-2023-54207 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2025-12-30.
- How severe is CVE-2023-54207?
- High severity. CVSS v3 base score is 7.8 out of 10.