bisecting fixing commit since d7e78d08fa77acdea351c8f628f49ca9a0e1029a
building syzkaller on d5a3ae1f760e7cb2cd5a721d9645ae22eae114fe
testing commit d7e78d08fa77acdea351c8f628f49ca9a0e1029a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 222bfd2d178cea594a2913c0ab21e6e7830f56cf3a06005a6937dfebe8e523b6
all runs: crashed: KASAN: use-after-free Read in u32_clear_hnode
testing current HEAD f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
testing commit f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c46ef05c8d76d717efe17b1bbadc69ba8807afd09a559844156af8afb6eef476
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m3.424131764s (build: 23m48.585895448s, test: 6m35.504178609s)
the crash still happens on HEAD
commit msg: Linux 4.14.248
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 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: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout