bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae with gcc (GCC) 8.4.1 20210217
kernel signature: ecc5d8f070a4867f5c41a2058c2c1a6d312070bce2bff83fea18ad614ca4ff59
run #0: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #1: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #2: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #3: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #4: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #5: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #6: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #7: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #8: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #9: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #10: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #11: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #12: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #13: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #14: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #15: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #16: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #17: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #18: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #19: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 3310268a182dcec9c6e80dc5a44170539a4097780c69013990cb212961ef2b93
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 20m5.000696704s (build: 13m34.900552411s, test: 6m4.901836723s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout