CVE-2025-40283
Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 6, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
fd913ef7ce619467c6b0644af48ba1fec499c623 < 297dbf87989e09af98f81f2bcb938041785557e8 fd913ef7ce619467c6b0644af48ba1fec499c623 < f858f004bc343a7ae9f2533bbb2a3ab27428532f fd913ef7ce619467c6b0644af48ba1fec499c623 < 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198 fd913ef7ce619467c6b0644af48ba1fec499c623 < 5dc00065a0496c36694afe11e52a5bc64524a9b8 fd913ef7ce619467c6b0644af48ba1fec499c623 < 1c28c1e1522c773a94e26950ffb145e88cd9834b fd913ef7ce619467c6b0644af48ba1fec499c623 < 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d fd913ef7ce619467c6b0644af48ba1fec499c623 < a2610ecd9fd5708be8997ca8f033e4200c0bb6af fd913ef7ce619467c6b0644af48ba1fec499c623 < 23d22f2f71768034d6ef86168213843fc49bf550
Linux / Linux
4.11
References
git.kernel.org: https://git.kernel.org/stable/c/297dbf87989e09af98f81f2bcb938041785557e8 git.kernel.org: https://git.kernel.org/stable/c/f858f004bc343a7ae9f2533bbb2a3ab27428532f git.kernel.org: https://git.kernel.org/stable/c/7a6d1e740220ff9dfcb6a8c994d6ba49e76db198 git.kernel.org: https://git.kernel.org/stable/c/5dc00065a0496c36694afe11e52a5bc64524a9b8 git.kernel.org: https://git.kernel.org/stable/c/1c28c1e1522c773a94e26950ffb145e88cd9834b git.kernel.org: https://git.kernel.org/stable/c/95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d git.kernel.org: https://git.kernel.org/stable/c/a2610ecd9fd5708be8997ca8f033e4200c0bb6af git.kernel.org: https://git.kernel.org/stable/c/23d22f2f71768034d6ef86168213843fc49bf550