bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 7069eda009f05bd48e9b65fe4440110cdd8512efd06677d3204dc79b240e589e run #0: crashed: KASAN: slab-out-of-bounds 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: 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: 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: slab-out-of-bounds 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: 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 162b95d01320370b80cb2d5724cea4ae538ac740 testing commit 162b95d01320370b80cb2d5724cea4ae538ac740 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: da6225891895d01e02a7ebf1a0191519c355d2724fdb29817ffe2f6b2264cb0b all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 28m30.418584904s (build: 21m27.510364547s, test: 6m28.424978897s) the crash still happens on HEAD commit msg: Linux 4.14.244 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: hci4 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout