[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.


Debian GNU/Linux 9 syzkaller ttyS0

syzkaller login: [   27.855959][ T8665] bash (8665) used greatest stack depth: 10312 bytes left
Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts.
2020/09/16 04:59:08 fuzzer started
2020/09/16 04:59:08 dialing manager at 10.128.0.105:35255
2020/09/16 04:59:09 syscalls: 3334
2020/09/16 04:59:09 code coverage: enabled
2020/09/16 04:59:09 comparison tracing: enabled
2020/09/16 04:59:09 extra coverage: enabled
2020/09/16 04:59:09 setuid sandbox: enabled
2020/09/16 04:59:09 namespace sandbox: enabled
2020/09/16 04:59:09 Android sandbox: /sys/fs/selinux/policy does not exist
2020/09/16 04:59:09 fault injection: enabled
2020/09/16 04:59:09 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/09/16 04:59:09 net packet injection: enabled
2020/09/16 04:59:09 net device setup: enabled
2020/09/16 04:59:09 concurrency sanitizer: enabled
2020/09/16 04:59:09 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/09/16 04:59:09 USB emulation: enabled
2020/09/16 04:59:09 hci packet injection: enabled
2020/09/16 04:59:11 suppressing KCSAN reports in functions: 'blk_mq_dispatch_rq_list' '__mod_timer' 'snd_rawmidi_kernel_write1' '__xa_clear_mark' 'find_get_pages_range_tag' '__filemap_fdatawrite_range' 'do_nanosleep' 'snd_rawmidi_poll' 'ext4_free_inode' 'generic_write_end' 'expire_timers' 'xas_clear_mark' '__ext4_new_inode' 'tick_sched_timer' 'blk_mq_sched_dispatch_requests' 
[   44.827737][ T8691] ==================================================================
[   44.835874][ T8691] BUG: KCSAN: data-race in do_epoll_wait / ep_scan_ready_list
[   44.843297][ T8691] 
[   44.845597][ T8691] write to 0xffff888120fbe058 of 8 bytes by task 8694 on cpu 0:
[   44.853217][ T8691]  ep_scan_ready_list+0x105/0x330
[   44.858209][ T8691]  do_epoll_wait+0x51f/0x870
[   44.862767][ T8691]  __x64_sys_epoll_pwait+0x92/0x150
[   44.867932][ T8691]  do_syscall_64+0x39/0x80
[   44.872327][ T8691]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   44.878231][ T8691] 
[   44.880536][ T8691] read to 0xffff888120fbe058 of 8 bytes by task 8691 on cpu 1:
[   44.888047][ T8691]  do_epoll_wait+0x425/0x870
[   44.892631][ T8691]  __x64_sys_epoll_pwait+0x92/0x150
[   44.897809][ T8691]  do_syscall_64+0x39/0x80
[   44.902205][ T8691]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   44.908065][ T8691] 
[   44.910366][ T8691] Reported by Kernel Concurrency Sanitizer on:
[   44.916490][ T8691] CPU: 1 PID: 8691 Comm: syz-fuzzer Not tainted 5.9.0-rc5-syzkaller #0
[   44.924699][ T8691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.934721][ T8691] ==================================================================
[   44.942746][ T8691] Kernel panic - not syncing: panic_on_warn set ...
[   44.949302][ T8691] CPU: 1 PID: 8691 Comm: syz-fuzzer Not tainted 5.9.0-rc5-syzkaller #0
[   44.957501][ T8691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.967612][ T8691] Call Trace:
[   44.970883][ T8691]  dump_stack+0x10f/0x19d
[   44.975182][ T8691]  panic+0x207/0x64a
[   44.979061][ T8691]  ? vprintk_emit+0x44a/0x4f0
[   44.983707][ T8691]  kcsan_report+0x684/0x690
[   44.988192][ T8691]  ? kcsan_setup_watchpoint+0x41e/0x4a0
[   44.993704][ T8691]  ? do_epoll_wait+0x425/0x870
[   44.998436][ T8691]  ? __x64_sys_epoll_pwait+0x92/0x150
[   45.003774][ T8691]  ? do_syscall_64+0x39/0x80
[   45.008333][ T8691]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.014373][ T8691]  ? ep_send_events_proc+0x4fd/0x620
[   45.019643][ T8691]  kcsan_setup_watchpoint+0x41e/0x4a0
[   45.025001][ T8691]  do_epoll_wait+0x425/0x870
[   45.029561][ T8691]  __x64_sys_epoll_pwait+0x92/0x150
[   45.034739][ T8691]  do_syscall_64+0x39/0x80
[   45.039124][ T8691]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.044986][ T8691] RIP: 0033:0x469240
[   45.048849][ T8691] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 c7
[   45.068434][ T8691] RSP: 002b:00007fff781a4930 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   45.076812][ T8691] RAX: ffffffffffffffda RBX: 00000000000493b2 RCX: 0000000000469240
[   45.084753][ T8691] RDX: 0000000000000080 RSI: 00007fff781a4980 RDI: 0000000000000003
[   45.092693][ T8691] RBP: 00007fff781a4f80 R08: 0000000000000000 R09: 0000000000000000
[   45.100739][ T8691] R10: 00000000000493b2 R11: 0000000000000246 R12: 0000000000000003
[   45.108689][ T8691] R13: 0000000001970020 R14: 0000000000000008 R15: 0000000000000002
[   45.117749][ T8691] Kernel Offset: disabled
[   45.122054][ T8691] Rebooting in 86400 seconds..