bisecting fixing commit since c196b3a9c83ae3491280b739d231d02b3cb9d041 building syzkaller on 51a9082e064119316893e12187cab2843283ed4d testing commit c196b3a9c83ae3491280b739d231d02b3cb9d041 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: efdce2902313ce1c5f475a56781433fb3531611581a0fe1fbf4142283f7f62af all runs: crashed: KASAN: global-out-of-bounds Read in soft_cursor testing current HEAD 5f9f3b0057d5c5782985784ba0159b05b4083055 testing commit 5f9f3b0057d5c5782985784ba0159b05b4083055 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 952feff0840072e1fd645b648a3801dabe06a2812e65c38f4e59994e0c889b75 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 23m38.807119669s (build: 16m30.917718394s, test: 6m36.989012191s) the crash still happens on HEAD commit msg: Linux 4.14.255 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: hci0 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci0 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: hci1 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: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 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