CVE-2025-40283
Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
Vexday Risk Score
3Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
06 dic 2025Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
There is a KASAN: slab-use-after-free read in btusb_disconnect().
Calling "usb_driver_release_interface(&btusb_driver, data->intf)" will
free the btusb data associated with the interface. The same data is
then used later in the function, hence the UAF.
Fix by moving the accesses to btusb data to before the data is free'd.
Productos afectados
Linux · LinuxReferencias
https://git.kernel.org/stable/c/1c28c1e1522c773a94e26950ffb145e88cd9834bhttps://git.kernel.org/stable/c/23d22f2f71768034d6ef86168213843fc49bf550https://git.kernel.org/stable/c/297dbf87989e09af98f81f2bcb938041785557e8https://git.kernel.org/stable/c/5dc00065a0496c36694afe11e52a5bc64524a9b8https://git.kernel.org/stable/c/7a6d1e740220ff9dfcb6a8c994d6ba49e76db198https://git.kernel.org/stable/c/95b9b98c93b1c0916a3d4cf4540b7f5d69145a0dhttps://git.kernel.org/stable/c/a2610ecd9fd5708be8997ca8f033e4200c0bb6afhttps://git.kernel.org/stable/c/f858f004bc343a7ae9f2533bbb2a3ab27428532f