bisecting fixing commit since 397a88b2cc869c823bf40bc403d36a62afec1edd
building syzkaller on f89ed068375b8e31b9575a0ecc834c602657a9a9
testing commit 397a88b2cc869c823bf40bc403d36a62afec1edd
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6a6b63f38d601e2dda3387681768e0a9f118178fe637db60e2e4b84b2931dc8f
run #0: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #1: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #2: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #3: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #4: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #5: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #6: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #7: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #8: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #9: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #10: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #11: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #12: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #13: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #14: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #15: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #16: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #17: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #18: crashed: SYZFAIL: netlink_send_ext: short netlink write
run #19: crashed: SYZFAIL: netlink_send_ext: short netlink write
testing current HEAD f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
testing commit f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fcd358da19d13764d67787d04ee380898681180abae246decba6908b36b8636f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m7.534248444s (build: 19m18.119324528s, test: 7m21.073359673s)
the crash still happens on HEAD
commit msg: Linux 4.14.248
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout