bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 06c27ff56b460864b5195bc0668d1d582df3cbf8
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5db02e4ebe74cafde1dd0c30143879a8ccf7d2e24fab644e04e870990762cd86
run #0: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #1: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #2: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #3: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #4: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #5: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #6: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #7: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #8: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #9: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #10: crashed: KASAN: use-after-free Read in ip_check_mc_rcu
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD af1af6ebca0e28a97e5f802b9da695678fcd226a
testing commit af1af6ebca0e28a97e5f802b9da695678fcd226a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4f413ea95ad2b9d63506db6ec2ac48cde06b01dbdc4787bdb27fb44d00066112
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 38m54.714342935s (build: 22m31.901239946s, test: 14m42.900605775s)
the crash still happens on HEAD
commit msg: Linux 4.14.274
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 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: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 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: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout