bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on bc5434be1a615eca6d901c20b026712bd9697fd4
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 with gcc (GCC) 8.4.1 20210217
kernel signature: fbe32179da8b57a5eca9903ff6af3e2ff03cbea30be2c5de5de9fbd2f45fc4d5
run #0: crashed: SYZFAIL: failed to mkdtemp
run #1: OK
run #2: crashed: SYZFAIL: failed to mkdir
run #3: OK
run #4: crashed: SYZFAIL: failed to mkdtemp
run #5: crashed: SYZFAIL: failed to mkdtemp
run #6: crashed: SYZFAIL: failed to mkdtemp
run #7: OK
run #8: crashed: SYZFAIL: failed to mkdtemp
run #9: OK
run #10: crashed: SYZFAIL: failed to mkdtemp
run #11: crashed: SYZFAIL: failed to mkdtemp
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: crashed: SYZFAIL: failed to mkdir
run #19: crashed: SYZFAIL: failed to mkdir
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: ef1cebbe6bbafefa94652614080ed35abf936cd891c159e6301421dddb8a9315
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m21.331706344s (build: 14m43.456980332s, test: 7m12.249892604s)
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: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout