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 'ci-upstream-kasan-gce-4,10.128.0.37' (ECDSA) to the list of known hosts.
2017/11/23 04:24:17 parsed 1 programs
2017/11/23 04:24:17 executed programs: 0
2017/11/23 04:24:22 executed programs: 536
2017/11/23 04:24:27 executed programs: 1023
2017/11/23 04:24:32 executed programs: 1508
2017/11/23 04:24:37 executed programs: 1983
2017/11/23 04:24:42 executed programs: 2457
2017/11/23 04:24:47 executed programs: 2942
2017/11/23 04:24:52 executed programs: 3430
2017/11/23 04:24:57 executed programs: 3915
2017/11/23 04:25:02 executed programs: 4403
2017/11/23 04:25:07 executed programs: 4889
2017/11/23 04:25:12 executed programs: 5357
2017/11/23 04:25:17 executed programs: 5835
2017/11/23 04:25:22 executed programs: 6320
2017/11/23 04:25:27 executed programs: 6803
2017/11/23 04:25:32 executed programs: 7289
2017/11/23 04:25:37 executed programs: 7757
2017/11/23 04:25:42 executed programs: 8236
2017/11/23 04:25:47 executed programs: 8719
2017/11/23 04:25:52 executed programs: 9208
2017/11/23 04:25:57 executed programs: 9692
2017/11/23 04:26:02 executed programs: 10152
2017/11/23 04:26:07 executed programs: 10630
2017/11/23 04:26:12 executed programs: 11120
2017/11/23 04:26:17 executed programs: 11604
2017/11/23 04:26:22 executed programs: 12076
2017/11/23 04:26:27 executed programs: 12543
2017/11/23 04:26:32 executed programs: 13019
2017/11/23 04:26:37 executed programs: 13480
2017/11/23 04:26:42 executed programs: 13947
2017/11/23 04:26:47 executed programs: 14432
2017/11/23 04:26:52 executed programs: 14919
2017/11/23 04:26:57 executed programs: 15400
2017/11/23 04:27:02 executed programs: 15886
2017/11/23 04:27:07 executed programs: 16370
2017/11/23 04:27:12 executed programs: 16857
2017/11/23 04:27:17 executed programs: 17340
2017/11/23 04:27:22 executed programs: 17827
2017/11/23 04:27:27 executed programs: 18308
2017/11/23 04:27:32 executed programs: 18790
2017/11/23 04:27:37 executed programs: 19272
2017/11/23 04:27:42 executed programs: 19758
2017/11/23 04:27:47 executed programs: 20231
2017/11/23 04:27:52 executed programs: 20697
2017/11/23 04:27:57 executed programs: 21171
2017/11/23 04:28:02 executed programs: 21649
2017/11/23 04:28:07 executed programs: 22115
2017/11/23 04:28:12 executed programs: 22590
2017/11/23 04:28:17 executed programs: 23066
2017/11/23 04:28:22 executed programs: 23529
2017/11/23 04:28:27 executed programs: 24006
2017/11/23 04:28:32 executed programs: 24485
2017/11/23 04:28:37 executed programs: 24948
2017/11/23 04:28:42 executed programs: 25423
2017/11/23 04:28:47 executed programs: 25897
2017/11/23 04:28:52 executed programs: 26360
2017/11/23 04:28:57 executed programs: 26841
2017/11/23 04:29:02 executed programs: 27310
2017/11/23 04:29:07 executed programs: 27787
2017/11/23 04:29:12 executed programs: 28261
2017/11/23 04:29:17 executed programs: 28724
2017/11/23 04:29:23 executed programs: 29205
2017/11/23 04:29:28 executed programs: 29672
2017/11/23 04:29:33 executed programs: 30144
2017/11/23 04:29:38 executed programs: 30626
2017/11/23 04:29:43 executed programs: 31109
2017/11/23 04:29:48 executed programs: 31593
2017/11/23 04:29:53 executed programs: 32072
2017/11/23 04:29:58 executed programs: 32551
2017/11/23 04:30:03 executed programs: 33019
2017/11/23 04:30:08 executed programs: 33501
2017/11/23 04:30:13 executed programs: 33992
2017/11/23 04:30:18 executed programs: 34473
2017/11/23 04:30:23 executed programs: 34956
2017/11/23 04:30:28 executed programs: 35447
2017/11/23 04:30:33 executed programs: 35926
2017/11/23 04:30:38 executed programs: 36394
2017/11/23 04:30:43 executed programs: 36885
2017/11/23 04:30:48 executed programs: 37372
2017/11/23 04:30:53 executed programs: 37847
2017/11/23 04:30:58 executed programs: 38339
2017/11/23 04:31:03 executed programs: 38832
2017/11/23 04:31:08 executed programs: 39312
2017/11/23 04:31:13 executed programs: 39800
2017/11/23 04:31:18 executed programs: 40279
2017/11/23 04:31:23 executed programs: 40758
2017/11/23 04:31:28 executed programs: 41248
2017/11/23 04:31:33 executed programs: 41732
result: failed=false hanged=false err=executor 2: failed: clone failed (errno 28)
loop failed (errno 0)


clone failed (errno 28)
loop failed (errno 0)
syzkaller login: [ 1704.797565] kasan: CONFIG_KASAN_INLINE enabled
[ 1704.798471] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 1704.799688] general protection fault: 0000 [#1] SMP KASAN
[ 1704.800438] Dumping ftrace buffer:
[ 1704.800939]    (ftrace buffer empty)
[ 1704.801446] Modules linked in:
[ 1704.801893] CPU: 0 PID: 3163 Comm: syz-executor1 Not tainted 4.14.0+ #190
[ 1704.802828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1704.804077] task: ffff8801cbcfa440 task.stack: ffff8801cbc70000
[ 1704.805026] RIP: 0010:proc_flush_task+0x26d/0x6c0
[ 1704.805702] RSP: 0018:ffff8801cbc77408 EFLAGS: 00010246
[ 1704.806491] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffed003978ee95
[ 1704.807523] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 1ffff1003978ee53
[ 1704.808865] RBP: ffff8801cbc77510 R08: 0000000000000000 R09: 1ffff1003978ee0c
[ 1704.810649] R10: 0000000000000500 R11: 0000000000000000 R12: ffff8801cbc774a8
[ 1704.812098] R13: 0000000000000000 R14: ffff8801c87fce80 R15: ffff8801cbc77468
[ 1704.813710] FS:  00000000012dc940(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
[ 1704.814855] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1704.815645] CR2: 00000000208e5ff0 CR3: 00000001cbed4000 CR4: 00000000001406f0
[ 1704.816819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1704.820377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1704.827631] Call Trace:
[ 1704.830218]  ? proc_tid_base_readdir+0x30/0x30
[ 1704.834850]  ? __lock_is_held+0xbc/0x140
[ 1704.838938]  release_task+0x258/0x1a40
[ 1704.842808]  ? lock_downgrade+0x980/0x980
[ 1704.846975]  ? thread_group_cputime_adjusted+0x6b/0xd0
[ 1704.852247]  ? delayed_put_task_struct+0x3d0/0x3d0
[ 1704.857165]  ? check_noncircular+0x20/0x20
[ 1704.861374]  ? check_noncircular+0x20/0x20
[ 1704.865589]  ? perf_trace_lock+0x900/0x900
[ 1704.869803]  ? lock_downgrade+0x980/0x980
[ 1704.873920]  ? cputime_adjust+0x2f/0x340
[ 1704.877954]  ? find_held_lock+0x39/0x1d0
[ 1704.881992]  ? lock_downgrade+0x980/0x980
[ 1704.886108]  ? lock_downgrade+0x980/0x980
[ 1704.890224]  ? do_wait+0x427/0xa70
[ 1704.893737]  ? lock_release+0xda0/0xda0
[ 1704.897683]  ? do_raw_spin_trylock+0x190/0x190
[ 1704.902231]  ? task_cputime_adjusted+0x240/0x240
[ 1704.906980]  ? _raw_spin_unlock_irq+0x27/0x70
[ 1704.911444]  ? trace_hardirqs_on_caller+0x421/0x5c0
[ 1704.916432]  wait_consider_task+0x2a10/0x3420
[ 1704.920907]  ? exit_notify+0xb10/0xb10
[ 1704.924761]  ? add_wait_queue+0x86/0x2d0
[ 1704.928796]  ? lock_release+0xda0/0xda0
[ 1704.932737]  ? debug_check_no_locks_freed+0x3d0/0x3d0
[ 1704.937899]  ? lock_acquire+0x1d5/0x580
[ 1704.941841]  ? do_wait+0x3aa/0xa70
[ 1704.945354]  ? lock_release+0xda0/0xda0
[ 1704.949298]  ? add_wait_queue+0x1bb/0x2d0
[ 1704.953418]  ? add_wait_queue_exclusive+0x2d0/0x2d0
[ 1704.958409]  do_wait+0x427/0xa70
[ 1704.961744]  ? wait_consider_task+0x3420/0x3420
[ 1704.966387]  ? find_held_lock+0x39/0x1d0
[ 1704.970424]  ? lock_downgrade+0x980/0x980
[ 1704.974567]  ? __might_fault+0xe0/0x1d0
[ 1704.978517]  kernel_wait4+0x1f5/0x370
[ 1704.982286]  ? SyS_waitid+0x50/0x50
[ 1704.985883]  ? task_stopped_code+0x140/0x140
[ 1704.990267]  SYSC_wait4+0x134/0x140
[ 1704.993866]  ? kernel_wait4+0x370/0x370
[ 1704.998341]  ? put_timespec64+0xfc/0x180
[ 1705.002372]  ? nsecs_to_jiffies+0x30/0x30
[ 1705.006499]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[ 1705.011308]  ? trace_hardirqs_on_caller+0x421/0x5c0
[ 1705.016294]  SyS_wait4+0x2c/0x40
[ 1705.019639]  ? SyS_wait4+0x2c/0x40
[ 1705.023149]  entry_SYSCALL_64_fastpath+0x1f/0x96
[ 1705.027869] RIP: 0033:0x40cbfa
[ 1705.031028] RSP: 002b:0000000000a6fa28 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
[ 1705.038701] RAX: ffffffffffffffda RBX: 00000000012dc914 RCX: 000000000040cbfa
[ 1705.045940] RDX: 0000000040000001 RSI: 0000000000a6fa4c RDI: ffffffffffffffff
[ 1705.053174] RBP: 0000000000000086 R08: 0000000000000001 R09: 00000000012dc940
[ 1705.060410] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 1705.067649] R13: 000000000000000a R14: 00000000001a0347 R15: 0000000000000016
[ 1705.074899] Code: 7d a0 e8 17 2c 43 03 48 8b 8d 10 ff ff ff 0f b6 11 38 95 33 ff ff ff 7c 08 84 d2 0f 85 73 03 00 00 89 45 9c 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 52 03 00 00 49 8b 7d 00 4c 89 e6 e8 8d 93 e7 
[ 1705.094022] RIP: proc_flush_task+0x26d/0x6c0 RSP: ffff8801cbc77408
[ 1705.100385] ---[ end trace 266a701a7d4db055 ]---
[ 1705.108321] Kernel panic - not syncing: Fatal exception
[ 1705.114122] Dumping ftrace buffer:
[ 1705.117631]    (ftrace buffer empty)
[ 1705.121310] Kernel Offset: disabled
[ 1705.124902] Rebooting in 86400 seconds..