bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 1880b4a9f394370a7d1fcb5c1cfca0fa1127b463
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 with gcc (GCC) 8.4.1 20210217
kernel signature: a6c3e14182c10bf16e861ec0c8badec17325be7216443827ac2e7b2f975c690f
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 soft_cursor
run #3: crashed: KASAN: slab-out-of-bounds Read in bit_putcs
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: use-after-free 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 bit_putcs
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 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: 941aee7734634c1b778d1dbd0950c1620cbfbcfbb1fc90e706bdb779c20d09e8
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m45.513394301s (build: 18m57.856711263s, test: 6m14.803334447s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout