bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 062c9832a6cdb39bf38ad7a6dad51300a2e9a734
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 79e31993488e4812491b8418c085db3ddad5fa236e837b49e25d0238040cbe5b
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: use-after-free Read in perf_output_read
run #5: crashed: KASAN: slab-out-of-bounds Read in perf_output_read
run #6: crashed: KASAN: use-after-free Read in perf_output_read
run #7: crashed: BUG: soft lockup in __perf_sw_event
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: KASAN: slab-out-of-bounds Read in perf_output_read
run #13: crashed: KASAN: use-after-free Read in perf_output_read
run #14: crashed: BUG: soft lockup in __perf_sw_event
run #15: crashed: KASAN: use-after-free Read in perf_output_read
run #16: crashed: KASAN: use-after-free Read in perf_output_read
run #17: crashed: BUG: soft lockup in __perf_sw_event
run #18: crashed: KASAN: use-after-free Read in perf_output_read
run #19: crashed: BUG: soft lockup in __perf_sw_event
testing current HEAD 424a46ea058e160ae6fdd0693092ba79da533f26
testing commit 424a46ea058e160ae6fdd0693092ba79da533f26
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: bdbd5f3ec25171eb6dd4200b611b5de6ce431ed248f42bfd672a3cb3d029acd7
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 29m56.569410944s (build: 15m17.408214972s, test: 14m6.336135155s)
the crash still happens on HEAD
commit msg: Linux 4.14.288
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout