bisecting fixing commit since 397a88b2cc869c823bf40bc403d36a62afec1edd building syzkaller on 9d751681c8ca1ef150e96f3c1e18bdcaab99c9b9 testing commit 397a88b2cc869c823bf40bc403d36a62afec1edd compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: da66423fb77452d8a18eae6c4535f776f45bd0056522fd8722612082dca3c554 all runs: crashed: KASAN: slab-out-of-bounds Read in pdu_read testing current HEAD 8034e99d1a010a795b979582c0b2370584d8abf4 testing commit 8034e99d1a010a795b979582c0b2370584d8abf4 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 84b5b888d9afec17b17c54826f9c25ad78b161fb549dbd594dc248d3ee551202 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 27m13.147566394s (build: 19m51.735802946s, test: 6m47.158869489s) the crash still happens on HEAD commit msg: Linux 4.14.266 crash: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout