bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on bca53db974f570410921f59b8c2c59a3d263cb44
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a50ef88498e3db9d635f48e01c5be520ae4e895c4db6b5daf45443bab46321c8
run #0: crashed: KASAN: use-after-free Read in disk_unblock_events
run #1: crashed: WARNING in md_ioctl
run #2: crashed: WARNING in md_ioctl
run #3: crashed: WARNING in md_ioctl
run #4: crashed: KASAN: use-after-free Read in disk_unblock_events
run #5: crashed: WARNING in md_ioctl
run #6: crashed: WARNING in md_ioctl
run #7: crashed: WARNING in md_ioctl
run #8: crashed: WARNING in md_ioctl
run #9: crashed: WARNING in md_ioctl
run #10: crashed: WARNING in md_ioctl
run #11: crashed: KASAN: use-after-free Read in disk_unblock_events
run #12: crashed: KASAN: use-after-free Read in disk_unblock_events
run #13: crashed: KASAN: use-after-free Read in disk_unblock_events
run #14: crashed: WARNING in md_ioctl
run #15: crashed: WARNING in md_ioctl
run #16: crashed: WARNING in md_ioctl
run #17: crashed: WARNING in md_ioctl
run #18: crashed: KASAN: use-after-free Read in disk_unblock_events
run #19: crashed: WARNING in md_ioctl
testing current HEAD eb045674aab31aa55a4f9aec27cce36e3d946a21
testing commit eb045674aab31aa55a4f9aec27cce36e3d946a21
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 99fb443648d0d23257e5aebb4767cc98f78551c95687453f059c2baa1cdebc5a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m24.193669377s (build: 15m19.346301527s, test: 6m39.94864421s)
the crash still happens on HEAD
commit msg: Linux 4.14.272
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout