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 '10.128.0.34' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   25.164439] kasan: CONFIG_KASAN_INLINE enabled
[   25.169097] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   25.176629] general protection fault: 0000 [#1] SMP KASAN
[   25.182152] Dumping ftrace buffer:
[   25.185664]    (ftrace buffer empty)
[   25.189347] Modules linked in:
[   25.192515] CPU: 0 PID: 4185 Comm: syzkaller097489 Not tainted 4.16.0-rc6+ #1
[   25.199756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.209097] RIP: 0010:rdma_init_qp_attr+0x8b/0x720
[   25.213995] RSP: 0018:ffff8801b7ca7840 EFLAGS: 00010202
[   25.219341] RAX: dffffc0000000000 RBX: ffff8801b9061200 RCX: ffffffff841bbfbf
[   25.226593] RDX: 0000000000000029 RSI: ffff8801b7ca79c8 RDI: 0000000000000148
[   25.233834] RBP: ffff8801b7ca7880 R08: ffffed0036f94f4e R09: ffff8801b7ca79cc
[   25.241076] R10: 0000000000000000 R11: ffffed0036f94f4d R12: ffff8801b7ca79c8
[   25.248317] R13: ffff8801b7ca7908 R14: 0000000000000000 R15: ffff8801b7ca78c8
[   25.255558] FS:  000000000223d880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   25.263757] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.269607] CR2: 0000000020000180 CR3: 00000001b879c004 CR4: 00000000001606f0
[   25.276849] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.284089] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.291330] Call Trace:
[   25.293897]  ucma_init_qp_attr+0x251/0x440
[   25.298105]  ? ucma_notify+0x1a0/0x1a0
[   25.301968]  ? find_held_lock+0x35/0x1d0
[   25.306019]  ? __might_fault+0x110/0x1d0
[   25.310062]  ? lock_downgrade+0x980/0x980
[   25.314181]  ? lock_release+0xa40/0xa40
[   25.318129]  ? check_same_owner+0x320/0x320
[   25.322437]  ? kasan_check_write+0x14/0x20
[   25.326644]  ucma_write+0x2d6/0x3d0
[   25.330243]  ? ucma_notify+0x1a0/0x1a0
[   25.334099]  ? ucma_close_id+0x60/0x60
[   25.337958]  ? ucma_close_id+0x60/0x60
[   25.341817]  __vfs_write+0xef/0x970
[   25.345418]  ? kernel_read+0x120/0x120
[   25.349279]  ? fsnotify+0x7b3/0x1140
[   25.352963]  ? rcu_pm_notify+0xc0/0xc0
[   25.356828]  ? security_file_permission+0x89/0x1e0
[   25.361731]  ? rw_verify_area+0xe5/0x2b0
[   25.365760]  ? __fdget_raw+0x20/0x20
[   25.369444]  vfs_write+0x189/0x510
[   25.372958]  SyS_write+0xef/0x220
[   25.376380]  ? filp_open+0x70/0x70
[   25.379893]  ? SyS_read+0x220/0x220
[   25.383495]  ? do_syscall_64+0xb7/0x940
[   25.387450]  ? SyS_read+0x220/0x220
[   25.391047]  do_syscall_64+0x281/0x940
[   25.394902]  ? __do_page_fault+0xc90/0xc90
[   25.399107]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   25.403835]  ? syscall_return_slowpath+0x550/0x550
[   25.408733]  ? syscall_return_slowpath+0x2ac/0x550
[   25.413633]  ? prepare_exit_to_usermode+0x350/0x350
[   25.418623]  ? entry_SYSCALL_64_after_hwframe+0x52/0xb7
[   25.423969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   25.428784]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   25.433944] RIP: 0033:0x43fdc9
[   25.437105] RSP: 002b:00007fff3ab15da8 EFLAGS: 00000217 ORIG_RAX: 0000000000000001
[   25.444780] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9
[   25.452118] RDX: 0000000000000018 RSI: 0000000020000cc0 RDI: 0000000000000003
[   25.459357] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
[   25.466598] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0
[   25.473838] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000
[   25.481084] Code: 00 00 00 fc ff df 80 3c 02 00 0f 85 8c 06 00 00 4c 8b 33 48 b8 00 00 00 00 00 fc ff df 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 06 00 00 44 0f b6 7d d4 48 b8 00 00 00 00 
[   25.500152] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801b7ca7840
[   25.506603] ---[ end trace 370b22fcc7e30bd0 ]---
[   25.511375] Kernel panic - not syncing: Fatal exception
[   25.517177] Dumping ftrace buffer:
[   25.520697]    (ftrace buffer empty)
[   25.524377] Kernel Offset: disabled
[   25.527975] Rebooting in 86400 seconds..