bisecting fixing commit since 2762b48e9611529239da2e68cba908dbbec9805f
building syzkaller on 63631df1539816bc62c7be40779c5f3e23b23b2f
testing commit 2762b48e9611529239da2e68cba908dbbec9805f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c86f989d727a193843c41caea7610e5e0aa50fd48304a3355cb7e3db0e7a8fa7
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: slab-out-of-bounds Read in perf_output_read
run #11: crashed: KASAN: use-after-free Read in perf_output_read
run #12: crashed: KASAN: use-after-free Read in perf_output_read
run #13: crashed: KASAN: use-after-free Read in perf_output_read
run #14: crashed: KASAN: use-after-free Read in perf_output_read
run #15: crashed: KASAN: slab-out-of-bounds Read in perf_output_read
run #16: crashed: general protection fault in perf_output_read
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: crashed: KASAN: use-after-free Read in perf_output_read
testing current HEAD 2760370b164918bd9311e6bf445cf4c118d3463c
testing commit 2760370b164918bd9311e6bf445cf4c118d3463c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 242f071cb3b121e0c62b38e45c0f06d0a53ca2664080b00d1c41830f402ea00c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m37.480420257s (build: 17m19.846013339s, test: 13m51.818814797s)
the crash still happens on HEAD
commit msg: Linux 4.14.252
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 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: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 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