bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8fa4910156b873fde70569afdd4f126f27262cb63ef188055602c81eae64eaa5
run #0: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #1: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #2: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #3: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #4: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #5: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #6: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #7: crashed: KASAN: use-after-free 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: use-after-free Read in ipvlan_queue_xmit
run #15: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #16: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #17: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
run #18: crashed: KASAN: slab-out-of-bounds Read in ipvlan_queue_xmit
run #19: crashed: KASAN: use-after-free Read in ipvlan_queue_xmit
testing current HEAD 74766a973637a02c32c04c1c6496e114e4855239
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 53e696928e5a66dbc4afcaaa938d5d763075087aa416b8514e4926ea832a4100
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 20m46.607084887s (build: 14m29.861608306s, test: 5m54.345222305s)
the crash still happens on HEAD
commit msg: Linux 4.14.275
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout