bisecting fixing commit since 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
building syzkaller on 1bf9a662c66aa432ff2fe3bf2562578cef626c09
testing commit 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c with gcc (GCC) 8.4.1 20210217
kernel signature: 937041a19b049b102f8a0f4e959ffa3d69fae31fb50fe129918a7c40d1707771
run #0: crashed: KASAN: use-after-free Read in lbmIODone
run #1: crashed: KASAN: use-after-free Read in lbmIODone
run #2: crashed: KASAN: use-after-free Read in lbmIODone
run #3: crashed: KASAN: use-after-free Read in lbmIODone
run #4: crashed: KASAN: use-after-free Read in lbmIODone
run #5: crashed: KASAN: use-after-free Read in lbmIODone
run #6: crashed: KASAN: use-after-free Read in lbmIODone
run #7: crashed: KASAN: use-after-free Read in lbmIODone
run #8: crashed: KASAN: use-after-free Read in lbmIODone
run #9: crashed: KASAN: use-after-free Read in lbmIODone
run #10: crashed: KASAN: use-after-free Read in lbmIODone
run #11: crashed: KASAN: use-after-free Read in lbmIODone
run #12: crashed: KASAN: use-after-free Read in lbmIODone
run #13: crashed: KASAN: use-after-free Read in lbmIODone
run #14: crashed: KASAN: use-after-free Read in lbmIODone
run #15: crashed: KASAN: use-after-free Read in lbmIODone
run #16: crashed: KASAN: use-after-free Read in lbmIODone
run #17: crashed: KASAN: use-after-free Read in lbmIODone
run #18: OK
run #19: OK
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: a4739a5d2e8083f6f8a7c031019062fbd3b01c1af82b6f7c9e2a8727d5f5f2ed
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m6.692724416s (build: 14m9.100450434s, test: 11m37.745126093s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 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: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout