INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   29.448261] WARNING: CPU: 1 PID: 4470 at fs/attr.c:213 notify_change+0xd94/0x10c0
[   29.455912] Kernel panic - not syncing: panic_on_warn set ...
[   29.455912] 
[   29.463284] CPU: 1 PID: 4470 Comm: syzkaller570118 Not tainted 4.16.0+ #4
[   29.470206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.479554] Call Trace:
[   29.482149]  dump_stack+0x1b9/0x294
[   29.485781]  ? dump_stack_print_info.cold.2+0x52/0x52
[   29.490991]  ? notify_change+0xce0/0x10c0
[   29.495132]  panic+0x22f/0x4de
executing program
executing program
executing program
executing program
[   29.498320]  ? add_taint.cold.5+0x16/0x16
[   29.502465]  ? __warn.cold.8+0x148/0x1a3
[   29.506524]  ? __warn.cold.8+0x117/0x1a3
[   29.510590]  ? notify_change+0xd94/0x10c0
[   29.514755]  __warn.cold.8+0x163/0x1a3
[   29.518643]  ? notify_change+0xd94/0x10c0
[   29.522808]  report_bug+0x252/0x2d0
[   29.526447]  do_error_trap+0x1de/0x490
[   29.530337]  ? math_error+0x420/0x420
[   29.534155]  ? kasan_check_read+0x11/0x20
[   29.538309]  ? do_raw_spin_unlock+0x9e/0x2e0
[   29.542723]  ? do_raw_spin_trylock+0x1b0/0x1b0
executing program
executing program
executing program
executing program
[   29.547315]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   29.552182]  do_invalid_op+0x1b/0x20
[   29.555905]  invalid_op+0x1b/0x40
[   29.559359] RIP: 0010:notify_change+0xd94/0x10c0
[   29.564155] RSP: 0018:ffff8801ad76f860 EFLAGS: 00010293
[   29.569537] RAX: ffff8801d9f66680 RBX: ffff8801d32d4630 RCX: ffffffff81c36578
[   29.576804] RDX: 0000000000000000 RSI: ffffffff81c371b4 RDI: 0000000000000007
[   29.584075] RBP: ffff8801ad76f930 R08: ffff8801d9f66680 R09: ffffed003a65a8e2
[   29.591344] R10: ffffed003a65a8e2 R11: ffff8801d32d4717 R12: 0000000000004200
executing program
executing program
[   29.598616] R13: ffff8801ad76f970 R14: ffff8801d5260ce0 R15: 1ffff10035aedf18
[   29.606246]  ? notify_change+0x158/0x10c0
[   29.610393]  ? notify_change+0xd94/0x10c0
[   29.614552]  ? setattr_prepare+0x6b0/0x6b0
[   29.618794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   29.624333]  ? security_inode_need_killpriv+0x87/0xb0
[   29.629530]  file_remove_privs+0x2bf/0x530
[   29.633767]  ? generic_update_time+0x420/0x420
[   29.638369]  ? blk_lld_busy+0x70/0x70
[   29.642200]  __generic_file_write_iter+0x169/0x5e0
[   29.647134]  blkdev_write_iter+0x233/0x420
[   29.651371]  ? blkdev_close+0xb0/0xb0
[   29.655170]  ? mutex_lock_nested+0x16/0x20
[   29.659414]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[   29.664954]  ? iov_iter_init+0xc9/0x1f0
[   29.668932]  __vfs_write+0x5bc/0x880
[   29.672650]  ? kernel_read+0x120/0x120
[   29.676545]  ? put_ctx+0xe5/0x140
[   29.679994]  ? perf_ioctl+0x6d/0x80
[   29.683610]  ? do_vfs_ioctl+0x1f2/0x1650
[   29.687648]  ? dput.part.26+0x242/0x7b0
[   29.691604]  ? rw_verify_area+0x118/0x360
[   29.695732]  vfs_write+0x1f8/0x560
[   29.699257]  ksys_write+0xf9/0x250
[   29.702777]  ? SyS_read+0x30/0x30
[   29.706210]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[   29.711724]  ? fput+0x130/0x1a0
[   29.714983]  ? ksys_ioctl+0x81/0xd0
[   29.718595]  SyS_write+0x24/0x30
[   29.721940]  ? ksys_write+0x250/0x250
[   29.725720]  do_syscall_64+0x29e/0x9d0
[   29.729585]  ? vmalloc_sync_all+0x30/0x30
[   29.733713]  ? _raw_spin_unlock_irq+0x27/0x70
[   29.738188]  ? finish_task_switch+0x1ca/0x820
[   29.742666]  ? syscall_return_slowpath+0x5c0/0x5c0
[   29.747577]  ? syscall_return_slowpath+0x30f/0x5c0
[   29.752486]  ? entry_SYSCALL_64_after_hwframe+0x52/0xb7
[   29.757828]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   29.762655]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   29.767820] RIP: 0033:0x445c59
[   29.770987] RSP: 002b:00007f76203b7d38 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[   29.778674] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445c59
[   29.785931] RDX: 0000000000000050 RSI: 0000000020000400 RDI: 0000000000000008
[   29.793177] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
[   29.800425] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dac20
[   29.807672] R13: 0000000000000006 R14: 0030656c69662f2e R15: 0000000000000000
[   29.815497] Dumping ftrace buffer:
[   29.819118]    (ftrace buffer empty)
[   29.822805] Kernel Offset: disabled
[   29.826411] Rebooting in 86400 seconds..