bisecting fixing commit since d7e78d08fa77acdea351c8f628f49ca9a0e1029a
building syzkaller on 816e0689d7d9d8321f8bf360740f0e516aee15ca
testing commit d7e78d08fa77acdea351c8f628f49ca9a0e1029a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c8efeb3b2bd368c92d9246c3e3682afc615f8e8d0591f341163960df9e68a533
run #0: crashed: WARNING: ODEBUG bug in bt_host_release
run #1: crashed: general protection fault in __queue_work
run #2: crashed: KASAN: use-after-free Read in __queue_work
run #3: crashed: WARNING: ODEBUG bug in bt_host_release
run #4: crashed: WARNING: ODEBUG bug in bt_host_release
run #5: crashed: WARNING: ODEBUG bug in bt_host_release
run #6: crashed: WARNING: ODEBUG bug in bt_host_release
run #7: crashed: WARNING: ODEBUG bug in bt_host_release
run #8: crashed: WARNING: ODEBUG bug in bt_host_release
run #9: crashed: WARNING: ODEBUG bug in bt_host_release
run #10: crashed: INFO: task hung in hci_req_sync
run #11: crashed: WARNING: ODEBUG bug in bt_host_release
run #12: crashed: KASAN: use-after-free Read in __queue_work
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 2760370b164918bd9311e6bf445cf4c118d3463c
testing commit 2760370b164918bd9311e6bf445cf4c118d3463c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a07ff345afd4bd17a59464fa6f05b3e8737a94a02734966c2ac7dd9241e95042
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m14.024880798s (build: 15m49.39055405s, test: 14m57.556961318s)
the crash still happens on HEAD
commit msg: Linux 4.14.252
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout