bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67 building syzkaller on 1880b4a9f394370a7d1fcb5c1cfca0fa1127b463 testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 44f99b3cd8acee9599df149a53abca7b6b4b04889e2295b3962ec77d612ce558 run #0: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #1: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #2: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #3: crashed: KASAN: slab-out-of-bounds Read in soft_cursor run #4: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #5: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #6: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #7: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #8: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #9: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #10: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #11: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #12: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #13: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #14: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #15: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #16: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #17: crashed: KASAN: slab-out-of-bounds Read in soft_cursor run #18: crashed: KASAN: slab-out-of-bounds Read in bit_putcs run #19: crashed: KASAN: slab-out-of-bounds Read in bit_putcs testing current HEAD 74766a973637a02c32c04c1c6496e114e4855239 testing commit 74766a973637a02c32c04c1c6496e114e4855239 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 5dd2de956eb3f2f50c46666822363dacf0d15fc04df172562cbf965716283fee all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 30m57.530412686s (build: 23m49.632260559s, test: 6m13.034517313s) the crash still happens on HEAD commit msg: Linux 4.14.275 crash: unregister_netdevice: waiting for DEV to become free can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout