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-mmots-kasan-gce-5,10.128.0.24' (ECDSA) to the list of known hosts.
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syzkaller login: [   40.127296] 
[   40.129504] =============================
[   40.134410] WARNING: suspicious RCU usage
[   40.140972] 4.13.0-mm1+ #7 Not tainted
[   40.145884] -----------------------------
[   40.155870] ./include/linux/kvm_host.h:481 suspicious rcu_dereference_check() usage!
[   40.164713] 
[   40.164713] other info that might help us debug this:
[   40.164713] 
[   40.173628] 
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[   40.173628] rcu_scheduler_active = 2, debug_locks = 1
[   40.187084] no locks held by syzkaller057010/3366.
[   40.193493] 
[   40.193493] stack backtrace:
[   40.199106] CPU: 0 PID: 3366 Comm: syzkaller057010 Not tainted 4.13.0-mm1+ #7
[   40.206375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.215706] Call Trace:
[   40.218271]  dump_stack+0x194/0x257
[   40.221888]  ? arch_local_irq_restore+0x53/0x53
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[   40.226553]  lockdep_rcu_suspicious+0x123/0x170
[   40.231198]  kvm_dev_ioctl+0x877/0x1840
[   40.235155]  ? install_new_memslots+0x420/0x420
[   40.239814]  ? avc_has_extended_perms+0x7fa/0x12c0
[   40.244720]  ? lock_downgrade+0x990/0x990
[   40.248850]  ? avc_ss_reset+0x110/0x110
[   40.252802]  ? lock_release+0xd70/0xd70
[   40.256755]  ? __lock_is_held+0xbc/0x140
[   40.260824]  ? check_same_owner+0x320/0x320
[   40.265119]  ? rcu_pm_notify+0xc0/0xc0
[   40.268993]  ? install_new_memslots+0x420/0x420
[   40.273634]  do_vfs_ioctl+0x1b1/0x1530
[   40.277504]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.281889]  ? selinux_capable+0x40/0x40
[   40.285933]  ? __lock_acquire+0x1651/0x4620
[   40.290231]  ? lockdep_invariant_state+0xdb/0x120
[   40.295048]  ? syscall_return_slowpath+0x2b3/0x500
[   40.299952]  ? finish_task_switch+0x1aa/0x740
[   40.304433]  ? security_file_ioctl+0x7d/0xb0
[   40.308820]  ? security_file_ioctl+0x89/0xb0
[   40.313205]  SyS_ioctl+0x8f/0xc0
[   40.316552]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.321290] RIP: 0033:0x446209
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[   40.324462] RSP: 002b:00007f62a9336dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   40.332171] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446209
[   40.339436] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000005
[   40.346683] RBP: 0000000000000082 R08: 00007f62a9337700 R09: 00007f62a9337700
[   40.353925] R10: 00007f62a9337700 R11: 0000000000000246 R12: 0000000000000000
[   40.361168] R13: 00007ffe3a73045f R14: 00007f62a93379c0 R15: 0000000000000000
[   40.368573] 
[   40.373271] =============================
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[   40.381914] WARNING: suspicious RCU usage
[   40.391045] 4.13.0-mm1+ #7 Not tainted
[   40.402966] -----------------------------
[   40.410705] ./include/linux/kvm_host.h:575 suspicious rcu_dereference_check() usage!
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[   40.436412] 
[   40.436412] other info that might help us debug this:
[   40.436412] 
[   40.445384] 
[   40.445384] rcu_scheduler_active = 2, debug_locks = 1
[   40.454525] no locks held by syzkaller057010/3366.
[   40.464299] 
[   40.464299] stack backtrace:
[   40.474704] CPU: 0 PID: 3366 Comm: syzkaller057010 Not tainted 4.13.0-mm1+ #7
executing program
[   40.481975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.491299] Call Trace:
[   40.493863]  dump_stack+0x194/0x257
[   40.497467]  ? arch_local_irq_restore+0x53/0x53
[   40.502137]  lockdep_rcu_suspicious+0x123/0x170
[   40.506787]  kvm_dev_ioctl+0xd21/0x1840
[   40.510743]  ? install_new_memslots+0x420/0x420
[   40.515401]  ? avc_has_extended_perms+0x7fa/0x12c0
[   40.520310]  ? lock_downgrade+0x990/0x990
[   40.524440]  ? avc_ss_reset+0x110/0x110
[   40.528390]  ? lock_release+0xd70/0xd70
[   40.532343]  ? __lock_is_held+0xbc/0x140
[   40.536407]  ? check_same_owner+0x320/0x320
[   40.540713]  ? rcu_pm_notify+0xc0/0xc0
[   40.544593]  ? install_new_memslots+0x420/0x420
[   40.549244]  do_vfs_ioctl+0x1b1/0x1530
[   40.553114]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.557498]  ? selinux_capable+0x40/0x40
[   40.561534]  ? __lock_acquire+0x1651/0x4620
[   40.565832]  ? lockdep_invariant_state+0xdb/0x120
[   40.570647]  ? syscall_return_slowpath+0x2b3/0x500
[   40.575548]  ? finish_task_switch+0x1aa/0x740
[   40.580022]  ? security_file_ioctl+0x7d/0xb0
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[   40.584402]  ? security_file_ioctl+0x89/0xb0
[   40.588785]  SyS_ioctl+0x8f/0xc0
[   40.592129]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.596858] RIP: 0033:0x446209
[   40.600021] RSP: 002b:00007f62a9336dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   40.607704] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446209
[   40.614947] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000005
[   40.622188] RBP: 0000000000000082 R08: 00007f62a9337700 R09: 00007f62a9337700
[   40.629431] R10: 00007f62a9337700 R11: 0000000000000246 R12: 0000000000000000
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[   40.636673] R13: 00007ffe3a73045f R14: 00007f62a93379c0 R15: 0000000000000000
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