Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: vhci: Prevent use-after-free by removing debugfs files early Move the creation of debugfs files into a dedicated function, and ensure they are explicitly removed during vhci_release(), before associated data structures are freed. Previously, debugfs files such as "force_suspend", "force_wakeup", and others were created under hdev->debugfs but not removed in vhci_release(). Since vhci_release() frees the backing vhci_data structure, any access to these files after release would result in use-after-free errors. Although hdev->debugfs is later freed in hci_release_dev(), user can access files after vhci_data is freed but before hdev->debugfs is released.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ab4e4380d4e158486e595013a2635190e07e28ce to < bd75eba88e88d7b896b0c737b02a74a12afc235faffectedab4e4380d4e158486e595013a2635190e07e28ce to < 1503756fffe76d5aea2371a4b8dee20c3577bcfdaffectedab4e4380d4e158486e595013a2635190e07e28ce to < 7cc08f2f127b9a66f46ea918e34353811a7cb378affectedab4e4380d4e158486e595013a2635190e07e28ce to < 28010791193a4503f054e8d69a950ef815deb539affected
Linux Linux
Default version status: affected
6.4affected0 to < 6.4unaffected6.6.105 to ≤ 6.6.*unaffected6.12.46 to ≤ 6.12.*unaffected6.16.6 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected