bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on fc7735a27949755327024847e12dcc1b868bcb99
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3270f4a7c9b06ba3565a67b58154a824bd69f539ec6e1412484525010eeac6b4
run #0: crashed: KASAN: use-after-free Read in perf_output_read
run #1: crashed: KASAN: use-after-free Read in perf_output_read
run #2: crashed: KASAN: use-after-free Read in perf_output_read
run #3: crashed: KASAN: use-after-free Read in perf_output_read
run #4: crashed: KASAN: slab-out-of-bounds Read in perf_output_read
run #5: crashed: KASAN: use-after-free Read in perf_output_read
run #6: crashed: KASAN: use-after-free Read in perf_output_read
run #7: crashed: KASAN: use-after-free Read in perf_output_read
run #8: crashed: KASAN: use-after-free Read in perf_output_read
run #9: crashed: KASAN: use-after-free Read in perf_output_read
run #10: crashed: KASAN: use-after-free Read in perf_output_read
run #11: crashed: KASAN: use-after-free Read in perf_output_read
run #12: crashed: BUG: soft lockup in __perf_sw_event
run #13: crashed: general protection fault in perf_output_read
run #14: crashed: general protection fault in perf_output_read
run #15: crashed: BUG: soft lockup in __perf_sw_event
run #16: crashed: BUG: soft lockup in __perf_sw_event
run #17: crashed: KASAN: use-after-free Read in perf_output_read
run #18: crashed: KASAN: use-after-free Read in perf_output_read
run #19: OK
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c4a1b2df2093c74e8e2760cd786606ca00444db7d51d953629f75866b064a3e4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 32m25.516214531s (build: 17m5.836863598s, test: 14m48.062130681s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
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: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 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: hci0 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: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 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