bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on b74c49a6af84e6ab50018024e8862263b1e0bd6d
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 with gcc (GCC) 8.4.1 20210217
kernel signature: 6c8053e273018909c68f95336f3b0b66fb27f77b6278c9a80af7b7852a6e5077
all runs: crashed: WARNING in sta_info_insert_rcu
testing current HEAD 96afcb20f36f07683aaa342e592ea8ec76fd1fa6
testing commit 96afcb20f36f07683aaa342e592ea8ec76fd1fa6 with gcc (GCC) 8.4.1 20210217
kernel signature: 3275dfc85045b5cf63f04304fa8c2253b2dfd9daa4098b5751ff71d815bcb767
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m33.402042229s (build: 23m15.196210543s, test: 6m38.50749024s)
the crash still happens on HEAD
commit msg: Linux 4.14.233
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout