bisecting fixing commit since 397a88b2cc869c823bf40bc403d36a62afec1edd
building syzkaller on e4b4d570a88c0d2e0420c6e21fc20d90564636b1
testing commit 397a88b2cc869c823bf40bc403d36a62afec1edd
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 173c4b08f22fb4d09c9332ec5d2a99131cac3ff6f3a63b388c73ce988c99a856
run #0: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #1: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #2: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #3: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #4: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #5: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #6: OK
run #7: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #8: OK
run #9: OK
run #10: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #11: OK
run #12: OK
run #13: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #14: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #15: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #16: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #17: crashed: KASAN: use-after-free Read in rht_deferred_worker
run #18: OK
run #19: OK
testing current HEAD b86ee2b7ae42b6b37a918b66236608e2cc325f59
testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5acc7e2a02b0bd1589cf55366c140ffeb0b1df8dd1fc7baa937e5a4971245acb
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 33m5.217135579s (build: 17m41.846022791s, test: 14m46.986227224s)
the crash still happens on HEAD
commit msg: Linux 4.14.264
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout