bisecting fixing commit since 958e517f4e16952e9a2e2d58fd32d28ae4e23dda building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9 testing commit 958e517f4e16952e9a2e2d58fd32d28ae4e23dda compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ce2b68d778b287778c03ddca8e82cb23c2c59049bf14d725014e701b8f2cbe7a all runs: crashed: general protection fault in ieee802154_llsec_parse_dev_addr testing current HEAD e3a56aaade89bc89f33baec11b12538fc22536e2 testing commit e3a56aaade89bc89f33baec11b12538fc22536e2 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: d2edf201f40c2fd2ffd3aa3deafde0e1bc7116dc3295207c87d36a78688ed305 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 21m0.69047888s (build: 14m24.192078059s, test: 6m5.583140541s) the crash still happens on HEAD commit msg: Linux 4.14.277 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci3 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: hci3 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci2 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 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout