bisecting fixing commit since 87335852c5d9ec629f80bb2257b9a9945962b719 building syzkaller on e34b696c0d7c04dbc824dee8b5123969bbca19b7 testing commit 87335852c5d9ec629f80bb2257b9a9945962b719 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 1bf9b2db1ef20b39533cadb7c39aadc726c0fc8dd91c38eb5221fae6276e1f79 all runs: crashed: divide error in squashfs_readpage testing current HEAD 4ba8e26127c393c32776dff6d79c5b82de6dc542 testing commit 4ba8e26127c393c32776dff6d79c5b82de6dc542 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 3cf7e595c2e11fdc8eb3342501b19cc32f9ac68967ab13414c3dd247ad453604 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 28m15.221404473s (build: 20m37.302266691s, test: 6m47.7432728s) the crash still happens on HEAD commit msg: Linux 4.14.262 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci1 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