bisecting fixing commit since 397a88b2cc869c823bf40bc403d36a62afec1edd building syzkaller on 9d751681c8ca1ef150e96f3c1e18bdcaab99c9b9 testing commit 397a88b2cc869c823bf40bc403d36a62afec1edd compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: e8ed58ad65aa6805bf9dea0aa39decd191f12782366b02c70ce1eac979b1d152 all runs: crashed: KASAN: slab-out-of-bounds Read in pdu_read testing current HEAD c01d4d1b885d96a7c8c27d629abeb918ca897dbe testing commit c01d4d1b885d96a7c8c27d629abeb918ca897dbe compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6808ab2892f10eeafda8f8f6a80d7b1da6842003b58671d12f9eeb7beee67810 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 27m36.307753492s (build: 20m25.10516141s, test: 6m38.258769485s) the crash still happens on HEAD commit msg: Linux 4.14.257 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci5 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: hci3 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout