A use-after-free vulnerability in the Linux kernel's Bluetooth subsystem was fixed. The flaw occurs in the device_for_each_child() function, where improper handling of device unregistering can lead to a dangling pointer and use-after-free condition. This issue was identified by a KASAN (Kernel Address Sanitizer) report and affects kernel versions prior to the fix. The vulnerability has a high severity score of 7.8 and impacts confidentiality, integrity, and availability. No specific affected versions are stated. No known exploits in the wild have been reported.