ci2 starts bisection 2022-08-18 18:20:18.2743889 +0000 UTC m=+37611.621533551 bisecting fixing commit since 2d2791fce891fc20709232d49a6bae075b9a77f8 building syzkaller on a57db36fe48aa500618c2eac3b38c27afe6d290f testing commit 2d2791fce891fc20709232d49a6bae075b9a77f8 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 074915a0ffb75e5e89fa7fee90aa95717b4936366fe95e5da83ccaee65070542 all runs: crashed: KASAN: use-after-free Read in disk_unblock_events testing current HEAD b641242202ed8c52030f7b6d8cf15886d3c4fc82 testing commit b641242202ed8c52030f7b6d8cf15886d3c4fc82 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ff843836593c07363d26170c365b8ceca08a3e5c78c014433f50fa5369447b9f all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 27m43.411935598s (build: 20m27.355672795s, test: 6m44.055031384s) the crash still happens on HEAD commit msg: Linux 4.14.290 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci4 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: hci4 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout