#VU121352 Use-after-free in Linux kernel - CVE-2025-71082
Published: January 14, 2026
Vulnerability identifier: #VU121352
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-2025-71082
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 btusb_probe() and btusb_disconnect() functions in drivers/bluetooth/btusb.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/1e54c19eaf84ba652c4e376571093e58e144b339
- https://git.kernel.org/stable/c/252714f1e8bdd542025b16321c790458014d6880
- https://git.kernel.org/stable/c/c0ecb3e4451fe94f4315e6d09c4046dfbc42090b
- https://git.kernel.org/stable/c/cca0e9206e3bcc63cd3e72193e60149165d493cc
- https://git.kernel.org/stable/c/fdf7c640fb8a44a59b0671143d8c2f738bc48003