bisecting fixing commit since 958e517f4e16952e9a2e2d58fd32d28ae4e23dda
building syzkaller on fcdb12ba70875c410749932abf39160d19c753d9
testing commit 958e517f4e16952e9a2e2d58fd32d28ae4e23dda
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d97a07a66ebfe43718796e5365d96f03ae1c46e43a17672ca04473717e5f2ab4
run #0: crashed: KASAN: use-after-free Read in tasklet_action
run #1: crashed: KASAN: use-after-free Read in tasklet_action
run #2: crashed: KASAN: use-after-free Read in tasklet_action
run #3: crashed: KASAN: use-after-free Read in tasklet_action
run #4: crashed: KASAN: use-after-free Read in tasklet_action
run #5: crashed: KASAN: use-after-free Read in tasklet_action
run #6: crashed: KASAN: use-after-free Read in tasklet_action
run #7: crashed: KASAN: use-after-free Read in tasklet_action
run #8: crashed: KASAN: use-after-free Read in bcm_can_tx
run #9: crashed: KASAN: use-after-free Read in tasklet_action
run #10: crashed: KASAN: use-after-free Read in tasklet_action
run #11: crashed: KASAN: use-after-free Read in tasklet_action
run #12: crashed: KASAN: use-after-free Read in tasklet_action
run #13: crashed: KASAN: use-after-free Read in tasklet_action
run #14: crashed: KASAN: use-after-free Read in tasklet_action
run #15: crashed: KASAN: use-after-free Read in tasklet_action
run #16: crashed: KASAN: use-after-free Read in tasklet_action
run #17: crashed: KASAN: use-after-free Read in bcm_can_tx
run #18: crashed: KASAN: use-after-free Read in tasklet_action
run #19: crashed: KASAN: use-after-free Read in bcm_can_tx
testing current HEAD c01d4d1b885d96a7c8c27d629abeb918ca897dbe
testing commit c01d4d1b885d96a7c8c27d629abeb918ca897dbe
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4ff118c0d81e9c92ea502c74a5868584bea63a387d4749d9e6b63e915159010e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 34m16.608406128s (build: 20m11.227072375s, test: 13m32.868739014s)
the crash still happens on HEAD
commit msg: Linux 4.14.257
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout