bisecting fixing commit since 5b7a52cd2eef952cee8a72512ef370bcdef46636
building syzkaller on a7aac492ebbc53e5c7bc4b5bbaf55f428c54093f
testing commit 5b7a52cd2eef952cee8a72512ef370bcdef46636
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 778538f6b400f2b137442eb820fe19c4b1f80e4b6a09900021637b1a5acdb903
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #3: crashed: BUG: unable to handle kernel
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #10: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #11: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #12: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #13: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #14: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #15: crashed: BUG: unable to handle kernel
run #16: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #17: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #18: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
run #19: crashed: BUG: unable to handle kernel NULL pointer dereference in vhci_shutdown_connection
testing current HEAD 4ba8e26127c393c32776dff6d79c5b82de6dc542
testing commit 4ba8e26127c393c32776dff6d79c5b82de6dc542
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5f259b1eea21f30baf4df4f73f04ed6bf2ec710dba572bfb62c2b3efab4b2bd5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m55.03604081s (build: 18m35.505466922s, test: 6m37.325537456s)
the crash still happens on HEAD
commit msg: Linux 4.14.262
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout