net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32399.json"
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.12.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.12.2"
}
]
}
]