bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: df4a6145825b8d91468e3f256fbfd7a650fff70e1d1a5bf48cb33cf35e69bfca
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: slab-out-of-bounds 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: use-after-free 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: use-after-free 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: slab-out-of-bounds 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 2760370b164918bd9311e6bf445cf4c118d3463c
testing commit 2760370b164918bd9311e6bf445cf4c118d3463c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5a9e78e377e956a9bd5efd6365cc7c8459d66b9b4c96016ff94b7c8d15e795ac
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m31.4909571s (build: 16m36.984157863s, test: 7m26.618636281s)
the crash still happens on HEAD
commit msg: Linux 4.14.252
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 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: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 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
Bluetooth: hci4 command 0x0419 tx timeout