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 '10.128.0.40' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   35.112588] ------------[ cut here ]------------
[   35.117596] WARNING: CPU: 1 PID: 3812 at fs/attr.c:211 notify_change2+0xa78/0xdf0
[   35.125302] Kernel panic - not syncing: panic_on_warn set ...
[   35.125302] 
[   35.132640] CPU: 1 PID: 3812 Comm: syzkaller431776 Not tainted 4.9.94-g8683408 #1
[   35.140247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   35.149583]  ffff8801d96af8c8 ffffffff81eb0aa9 ffffffff83a484a0 00000000ffffffff
[   35.157562]  0000000000000000 0000000000000001 00000000000000d3 ffff8801d96af988
[   35.165544]  ffffffff8141f845 0000000041b58ab3 ffffffff841b7b48 ffffffff8141f686
[   35.173522] Call Trace:
[   35.176083]  [<ffffffff81eb0aa9>] dump_stack+0xc1/0x128
[   35.181418]  [<ffffffff8141f845>] panic+0x1bf/0x3bc
[   35.186413]  [<ffffffff8141f686>] ? add_taint.cold.6+0x16/0x16
[   35.192359]  [<ffffffff8148197e>] ? shmem_xattr_handler_get+0x3e/0x50
[   35.198907]  [<ffffffff81481940>] ? shmem_xattr_handler_set+0x50/0x50
[   35.205455]  [<ffffffff8141fb16>] ? __warn.cold.9+0xa6/0x17f
[   35.211235]  [<ffffffff815d13b8>] ? notify_change2+0xa78/0xdf0
[   35.217189]  [<ffffffff8141fb31>] __warn.cold.9+0xc1/0x17f
[   35.222800]  [<ffffffff8113461c>] warn_slowpath_null+0x2c/0x40
[   35.228756]  [<ffffffff815d13b8>] notify_change2+0xa78/0xdf0
[   35.234534]  [<ffffffff81ce0eb0>] ? cap_inode_need_killpriv+0x40/0x60
[   35.241108]  [<ffffffff81cecf4f>] ? security_inode_need_killpriv+0x7f/0xb0
[   35.248096]  [<ffffffff815cb789>] file_remove_privs+0x279/0x480
[   35.254128]  [<ffffffff815cb510>] ? clear_nlink+0xb0/0xb0
[   35.259646]  [<ffffffff8143b411>] __generic_file_write_iter+0x161/0x540
[   35.267024]  [<ffffffff812349a4>] ? __lock_acquire+0x654/0x4070
[   35.273056]  [<ffffffff81630cf7>] blkdev_write_iter+0x1b7/0x370
[   35.279097]  [<ffffffff812349a4>] ? __lock_acquire+0x654/0x4070
[   35.285134]  [<ffffffff81630b40>] ? bd_acquire+0x250/0x250
[   35.290729]  [<ffffffff81eef32f>] ? iov_iter_init+0xaf/0x1d0
[   35.296497]  [<ffffffff8156c3a0>] __vfs_write+0x3e0/0x580
[   35.302002]  [<ffffffff8156bfc0>] ? default_llseek+0x280/0x280
[   35.307946]  [<ffffffff81cf63a9>] ? avc_policy_seqno+0x9/0x20
[   35.313803]  [<ffffffff81d060f2>] ? selinux_file_permission+0x82/0x470
[   35.320442]  [<ffffffff8156fac5>] ? rw_verify_area+0xe5/0x2b0
[   35.326319]  [<ffffffff81570197>] vfs_write+0x187/0x530
[   35.331657]  [<ffffffff81573fc9>] SyS_write+0xd9/0x1c0
[   35.336903]  [<ffffffff81573ef0>] ? SyS_read+0x1c0/0x1c0
[   35.342326]  [<ffffffff810061b8>] ? do_syscall_64+0x48/0x490
[   35.348102]  [<ffffffff81573ef0>] ? SyS_read+0x1c0/0x1c0
[   35.353522]  [<ffffffff81006316>] do_syscall_64+0x1a6/0x490
[   35.359205]  [<ffffffff839f2313>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
[   35.366607] Dumping ftrace buffer:
[   35.370156]    (ftrace buffer empty)
[   35.373839] Kernel Offset: disabled
[   35.377448] Rebooting in 86400 seconds..