bisecting fixing commit since 2f166cdcf8a92fcf85524f2b5526cb28e16f0a60 building syzkaller on 0ea7a8875d3f20d3bdf6323495521b62ef71878c testing commit 2f166cdcf8a92fcf85524f2b5526cb28e16f0a60 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 71d9e0b3b240e33d6837c8ddd8921764d88fe0d4b9cfd138715eb5860bc8f940 run #0: crashed: WARNING: ODEBUG bug in tipc_subscrb_subscrp_delete run #1: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #2: crashed: WARNING: ODEBUG bug in tipc_subscrb_subscrp_delete run #3: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #4: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #5: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #6: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #7: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #8: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #9: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #10: crashed: WARNING: ODEBUG bug in tipc_subscrb_subscrp_delete run #11: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #12: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #13: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #14: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #15: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #16: crashed: WARNING: ODEBUG bug in tipc_subscrb_subscrp_delete run #17: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #18: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb run #19: crashed: KASAN: use-after-free Read in tipc_subscrb_rcv_cb testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6 testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c7c156abec9a8f0d2c108af7696bd0b2635dd9d07bc965d3e6c5a74fbefcc65d all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 25m50.176330144s (build: 18m39.968992223s, test: 6m41.497353343s) the crash still happens on HEAD commit msg: Linux 4.14.250 crash: unregister_netdevice: waiting for DEV to become free can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci0 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: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout