bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 5abc3f1ab298244473b613c289f1536e366fcf04
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c526a8beab07ec40e6e8d041bccc0e0f40d65570b0f2eb1cd3b447ec8c50ce55
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: KASAN: use-after-free Read 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: KASAN: use-after-free Read 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: KASAN: use-after-free Read in diFree
run #15: crashed: KASAN: use-after-free Read in diFree
run #16: crashed: KASAN: use-after-free Read in diFree
run #17: crashed: general protection fault in diFree
run #18: crashed: KASAN: use-after-free Read in diFree
run #19: crashed: KASAN: use-after-free Read in diFree
testing current HEAD 964f3712e6a7447d9d3203f2be3f6c50e78ea179
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4ec2d1f9330809ff7632d2fbb642154789b0a97adcd2445cd3613755084574aa
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m16.715249998s (build: 20m32.358979962s, test: 6m17.018562629s)
the crash still happens on HEAD
commit msg: Linux 4.14.240
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: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout