bisecting fixing commit since 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
building syzkaller on 1bf9a662c66aa432ff2fe3bf2562578cef626c09
testing commit 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e6c8df4aeb57f77c9d1b90ef6f6f315cfebffb7078ea292e9266b35d911db36d
all runs: crashed: WARNING in bpf
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ac23f5d12a3f2540de95d1bc109dcc1052401b28e344fdb7bb3276243e1c099b
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m24.846339996s (build: 14m39.119581366s, test: 6m20.744970491s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
syz-executor.0 (7301) used greatest stack depth: 24488 bytes left
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout