bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 77e2b66864e69c17416614228723a1ebd3581ddc
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 83b2630efbb5ae01a627c27fc25db1caac8a71194481c9b089407b611593735e
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: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
testing commit 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8747e0f5d67c902dc991cccff18b54d2d22abe6703719701c10aa4c166ba3509
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m52.601561323s (build: 20m48.952386584s, test: 14m34.082386629s)
the crash still happens on HEAD
commit msg: Linux 4.14.254
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout