bisecting fixing commit since 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
building syzkaller on 1bf9a662c66aa432ff2fe3bf2562578cef626c09
testing commit 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: db50c550b41904db0cfaf73ddee046acb42495f7892877a5d40a8f4064d2ed44
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: OK
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: crashed: KASAN: use-after-free Read in lbmIODone
testing current HEAD fa33f9094f36943ea32f7fbe323293b62e96151d
testing commit fa33f9094f36943ea32f7fbe323293b62e96151d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 35cc044c15ffbc8dfe1c1056a884b3794b074ea7bd2b00fe71c057e3da927aa7
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 34m0.296408766s (build: 21m9.512730667s, test: 11m50.284614037s)
the crash still happens on HEAD
commit msg: Linux 4.14.268
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout