bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 5abc3f1ab298244473b613c289f1536e366fcf04
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fa3df96ff2bb5a850665d0b7773fbd47e6fb6e92fddad287dd7b5d0b8c6b9e87
run #0: crashed: KASAN: use-after-free Read in diFree
run #1: crashed: KASAN: use-after-free Read in diFree
run #2: crashed: KASAN: use-after-free Read in diFree
run #3: crashed: KASAN: use-after-free Read in diFree
run #4: crashed: general protection fault in diFree
run #5: crashed: general protection fault in diFree
run #6: crashed: KASAN: use-after-free Read in diFree
run #7: crashed: KASAN: use-after-free Read in diFree
run #8: crashed: KASAN: use-after-free Read in diFree
run #9: crashed: KASAN: use-after-free Read in diFree
run #10: crashed: general protection fault in diFree
run #11: crashed: general protection fault in diFree
run #12: crashed: general protection fault in diFree
run #13: crashed: KASAN: use-after-free Read in diFree
run #14: crashed: general protection fault in diFree
run #15: crashed: KASAN: use-after-free Read in diFree
run #16: crashed: general protection fault in diFree
run #17: crashed: general protection fault in diFree
run #18: crashed: general protection fault in diFree
run #19: crashed: KASAN: use-after-free Read in diFree
testing current HEAD cd529693461026636f76d0395a42cb2439bbd368
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fb61b7f3701c3d87436a573af762323f50d62ae37e7cc04a01ff732c1b0c1fd0
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m3.384069138s (build: 17m59.349289295s, test: 6m34.830605767s)
the crash still happens on HEAD
commit msg: Linux 4.14.253
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout