[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts.
2020/06/14 11:13:33 fuzzer started
2020/06/14 11:13:34 dialing manager at 10.128.0.105:36539
2020/06/14 11:13:34 syscalls: 3085
2020/06/14 11:13:34 code coverage: enabled
2020/06/14 11:13:34 comparison tracing: enabled
2020/06/14 11:13:34 extra coverage: enabled
2020/06/14 11:13:34 setuid sandbox: enabled
2020/06/14 11:13:34 namespace sandbox: enabled
2020/06/14 11:13:34 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/14 11:13:34 fault injection: enabled
2020/06/14 11:13:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/14 11:13:34 net packet injection: enabled
2020/06/14 11:13:34 net device setup: enabled
2020/06/14 11:13:34 concurrency sanitizer: enabled
2020/06/14 11:13:34 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/14 11:13:34 USB emulation: enabled
2020/06/14 11:13:34 adding functions to KCSAN blacklist: 'find_get_pages_range_tag' 
syzkaller login: [   50.524180][ T8903] ==================================================================
[   50.532433][ T8903] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   50.539946][ T8903] 
[   50.542259][ T8903] write to 0xffff88811fb410a4 of 4 bytes by task 8905 on cpu 1:
[   50.549863][ T8903]  futex_wait_queue_me+0x17d/0x290
[   50.554963][ T8903]  futex_wait+0x17e/0x3a0
[   50.559268][ T8903]  do_futex+0xe2/0x15b0
[   50.563398][ T8903]  __x64_sys_futex+0x2dc/0x410
[   50.568140][ T8903]  do_syscall_64+0xc7/0x3b0
[   50.572629][ T8903]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   50.578505][ T8903] 
[   50.580830][ T8903] read to 0xffff88811fb410a4 of 4 bytes by task 8903 on cpu 0:
[   50.588410][ T8903]  __send_signal+0x468/0x8a0
[   50.593138][ T8903]  send_signal+0x211/0x2a0
[   50.597535][ T8903]  do_send_sig_info+0x59/0xc0
[   50.602198][ T8903]  do_send_specific+0xd8/0x100
[   50.606938][ T8903]  do_tkill+0xf8/0x130
[   50.610992][ T8903]  __x64_sys_tgkill+0x6d/0x90
[   50.615771][ T8903]  do_syscall_64+0xc7/0x3b0
[   50.620251][ T8903]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   50.626250][ T8903] 
[   50.628551][ T8903] Reported by Kernel Concurrency Sanitizer on:
[   50.634759][ T8903] CPU: 0 PID: 8903 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   50.642967][ T8903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.652995][ T8903] ==================================================================
[   50.661033][ T8903] Kernel panic - not syncing: panic_on_warn set ...
[   50.667601][ T8903] CPU: 0 PID: 8903 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   50.675807][ T8903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.685853][ T8903] Call Trace:
[   50.689124][ T8903]  dump_stack+0x11d/0x187
[   50.693448][ T8903]  panic+0x210/0x640
[   50.697336][ T8903]  ? vprintk_func+0x89/0x13a
[   50.701914][ T8903]  kcsan_report.cold+0xc/0x1a
[   50.706580][ T8903]  kcsan_setup_watchpoint+0x3fb/0x440
[   50.711936][ T8903]  __send_signal+0x468/0x8a0
[   50.716524][ T8903]  send_signal+0x211/0x2a0
[   50.720919][ T8903]  do_send_sig_info+0x59/0xc0
[   50.725573][ T8903]  do_send_specific+0xd8/0x100
[   50.730320][ T8903]  do_tkill+0xf8/0x130
[   50.734383][ T8903]  __x64_sys_tgkill+0x6d/0x90
[   50.739048][ T8903]  do_syscall_64+0xc7/0x3b0
[   50.743528][ T8903]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   50.749401][ T8903] RIP: 0033:0x468b26
[   50.753287][ T8903] Code: cc cc cc cc b8 27 00 00 00 0f 05 48 89 44 24 08 c3 cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 48 8b 54 24 18 b8 ea 00 00 00 0f 05 <c3> cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 8b 74 24 10 48 8b 54
[   50.772873][ T8903] RSP: 002b:00007ffd6fbbcf30 EFLAGS: 00000246 ORIG_RAX: 00000000000000ea
[   50.781271][ T8903] RAX: ffffffffffffffda RBX: 000000c000000180 RCX: 0000000000468b26
[   50.789230][ T8903] RDX: 0000000000000017 RSI: 00000000000022c9 RDI: 00000000000022c7
[   50.797177][ T8903] RBP: 00007ffd6fbbcf50 R08: 0000000000000000 R09: 0000000000000032
[   50.805123][ T8903] R10: 00007f9eabffc108 R11: 0000000000000246 R12: 000000c0008d6340
[   50.813082][ T8903] R13: 0000000000000083 R14: 0000000000000082 R15: 0000000000000100
[   51.896914][ T8903] Shutting down cpus with NMI
[   51.902998][ T8903] Kernel Offset: disabled
[   51.907326][ T8903] Rebooting in 86400 seconds..