bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on a343ba6b077a3efe7feb57783dcbb7496d2c3572
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 with gcc (GCC) 8.4.1 20210217
kernel signature: 587794f93a2f4680fcc6890f5de1775053a57ea2322be80f52263b7a30e7676a
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #6: crashed: BUG: unable to handle kernel
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #10: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #11: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #12: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #13: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #14: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #15: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #16: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #17: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #18: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
run #19: crashed: BUG: unable to handle kernel NULL pointer dereference in __lookup_hash
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 01ba917e7b4b94692f470f5ac9e081dea669fab6631d5c788ed097c83ecd055e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m17.632450271s (build: 15m38.008194282s, test: 6m17.858495428s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 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: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout