CVE-2025-40283
Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
Vexday Risk Score
3Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
06 dez 2025Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
Produtos afetados
Linux · LinuxReferências
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