CVE-2025-40283
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedDec 6, 2025
First seenDec 6, 2025
How to fix
Update
- Linux Linux297dbf87989e09af98f81f2bcb938041785557e8, f858f004bc343a7ae9f2533bbb2a3ab27428532f, 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198, 5dc00065a0496c36694afe11e52a5bc64524a9b8, 1c28c1e1522c773a94e26950ffb145e88cd9834b, 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d, a2610ecd9fd5708be8997ca8f033e4200c0bb6af, 23d22f2f71768034d6ef86168213843fc49bf550 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 297dbf87989e09af98f81f2bcb938041785557e8, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < f858f004bc343a7ae9f2533bbb2a3ab27428532f, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 5dc00065a0496c36694afe11e52a5bc64524a9b8, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 1c28c1e1522c773a94e26950ffb145e88cd9834b, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < a2610ecd9fd5708be8997ca8f033e4200c0bb6af, fd913ef7ce619467c6b0644af48ba1fec499c623 ≤ v < 23d22f2f71768034d6ef86168213843fc49bf550, 4.11 | 297dbf87989e09af98f81f2bcb938041785557e8, f858f004bc343a7ae9f2533bbb2a3ab27428532f, 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198, 5dc00065a0496c36694afe11e52a5bc64524a9b8, 1c28c1e1522c773a94e26950ffb145e88cd9834b, 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d, a2610ecd9fd5708be8997ca8f033e4200c0bb6af, 23d22f2f71768034d6ef86168213843fc49bf550 |
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