bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on b74c49a6af84e6ab50018024e8862263b1e0bd6d
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 with gcc (GCC) 8.4.1 20210217
kernel signature: 48bce87c00ee1e8e380df11547bea4fa20192d74fb0bb4b478d85c14f6cc6373
run #0: crashed: WARNING in sta_info_insert_rcu
run #1: crashed: WARNING in sta_info_insert_rcu
run #2: crashed: WARNING in sta_info_insert_rcu
run #3: crashed: WARNING in sta_info_insert_rcu
run #4: crashed: WARNING in sta_info_insert_rcu
run #5: crashed: WARNING in sta_info_insert_rcu
run #6: crashed: WARNING in sta_info_insert_rcu
run #7: crashed: WARNING in sta_info_insert_rcu
run #8: crashed: WARNING in sta_info_insert_rcu
run #9: crashed: WARNING in sta_info_insert_rcu
run #10: crashed: WARNING in sta_info_insert_rcu
run #11: crashed: WARNING in sta_info_insert_rcu
run #12: crashed: WARNING in sta_info_insert_rcu
run #13: crashed: WARNING in sta_info_insert_rcu
run #14: crashed: WARNING in sta_info_insert_rcu
run #15: crashed: WARNING in corrupted
run #16: crashed: WARNING in sta_info_insert_rcu
run #17: crashed: WARNING in sta_info_insert_rcu
run #18: crashed: WARNING in sta_info_insert_rcu
run #19: crashed: WARNING in sta_info_insert_rcu
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: f4b5a07b493fb444a4d9d90c5c545e257af08bf374fc9aa26f8974eec27e3af4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m49.326966478s (build: 15m17.164966269s, test: 6m9.98618267s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout