#VU119310 Use-after-free in Linux kernel - CVE-2025-40284
Published: December 8, 2025
Vulnerability identifier: #VU119310
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-2025-40284
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 mgmt_index_removed() function in net/bluetooth/mgmt.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/2927ff643607eddf4f03d10ef80fe10d977154aa
- https://git.kernel.org/stable/c/55fb52ffdd62850d667ebed842815e072d3c9961
- https://git.kernel.org/stable/c/7b6b6c077cad0601d62c3c34ab7ce3fb25deda7b
- https://git.kernel.org/stable/c/990e6143b0ca0c66f099d67d00c112bf59b30d76
- https://git.kernel.org/stable/c/fd62ca5ad136dcf6f5aa308423b299a6be6f54ea