[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts.
syzkaller login: [   29.155703] IPVS: ftp: loaded support on port[0] = 21
executing program
[   29.465122] vma ffff8880b35a5460 start 0000000020000000 end 0000000020600000
[   29.465122] next ffff888098173880 prev ffff888098173ca0 mm ffff8880a30fa640
[   29.465122] prot 25 anon_vma           (null) vm_ops ffffffff8790a960
[   29.465122] pgoff 0 file ffff8880b4f8f5c0 private_data           (null)
[   29.465122] flags: 0x20fe(write|exec|shared|mayread|maywrite|mayexec|mayshare|locked)
[   29.500459] ------------[ cut here ]------------
[   29.505207] kernel BUG at mm/memory.c:4011!
[   29.509514] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   29.514959] Modules linked in:
[   29.518136] CPU: 1 PID: 7984 Comm: syz-executor428 Not tainted 4.14.282-syzkaller #0
[   29.525989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.535321] task: ffff888097b803c0 task.stack: ffff8880b3670000
[   29.541358] RIP: 0010:__handle_mm_fault+0x259a/0x4620
[   29.546522] RSP: 0018:ffff8880b3677860 EFLAGS: 00010287
[   29.551870] RAX: 0000000000000140 RBX: 0000000000000000 RCX: 0000000000000000
[   29.559118] RDX: 0000000000000000 RSI: ffffffff878bc600 RDI: ffffed10166ceeeb
[   29.566385] RBP: 1ffff110166cef12 R08: 0000000000000140 R09: 0000000000000000
[   29.573638] R10: 0000000000000000 R11: 0000000000000000 R12: 000000008b8000e5
[   29.580886] R13: ffff8880b35a5460 R14: 00000000000000e5 R15: ffffffff88cca358
[   29.588162] FS:  00007fbb7cf57700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   29.596367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.602225] CR2: 0000000020000100 CR3: 0000000099b75000 CR4: 00000000003406e0
[   29.609480] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.616729] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.623975] Call Trace:
[   29.626549]  ? __lock_acquire+0x5fc/0x3f20
[   29.630760]  ? vm_insert_page+0x7c0/0x7c0
[   29.634885]  ? debug_object_assert_init+0x22d/0x2d0
[   29.639881]  ? mark_held_locks+0xa6/0xf0
[   29.643918]  handle_mm_fault+0x455/0x9c0
[   29.647956]  __do_page_fault+0x549/0xad0
[   29.651994]  ? spurious_fault+0x640/0x640
[   29.656119]  ? do_page_fault+0x60/0x500
[   29.660071]  page_fault+0x25/0x50
[   29.663512] RIP: 0010:ep_send_events_proc+0x4e6/0x9c0
[   29.668678] RSP: 0018:ffff8880b3677b40 EFLAGS: 00050246
[   29.674016] RAX: 0000000000000004 RBX: ffff8880b43f1318 RCX: 0000000000000000
[   29.681262] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000001
[   29.688510] RBP: dffffc0000000000 R08: ffffffff8b9c4a00 R09: 0000000000000001
[   29.695755] R10: 0000000000000000 R11: ffff888097b803c0 R12: ffff8880b3677c58
[   29.703003] R13: ffff8880b43f1320 R14: ffff8880b43f1370 R15: ffff8880b43f1368
[   29.710261]  ? ep_read_events_proc+0x440/0x440
[   29.714821]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[   29.719921]  ? ep_read_events_proc+0x440/0x440
[   29.724500]  ep_scan_ready_list+0x1c6/0x7e0
[   29.728802]  ? lock_downgrade+0x740/0x740
[   29.732945]  ? ep_eventpoll_release+0x60/0x60
[   29.737425]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[   29.742509]  ep_poll+0x234/0xa50
[   29.745858]  ? ep_poll_readyevents_proc+0x90/0x90
[   29.750698]  ? lock_downgrade+0x740/0x740
[   29.754911]  ? __fget+0x265/0x3e0
[   29.758341]  ? wake_up_q+0xd0/0xd0
[   29.761857]  SyS_epoll_wait+0x150/0x1a0
[   29.765808]  SyS_epoll_pwait+0x1e9/0x230
[   29.769849]  ? SyS_epoll_wait+0x1a0/0x1a0
[   29.773975]  ? ep_send_events_proc+0x9c0/0x9c0
[   29.778539]  ? get_epoll_tfile_raw_ptr+0x1a0/0x1a0
[   29.783446]  ? _raw_spin_unlock_irq+0x5a/0x80
[   29.787920]  ? do_syscall_64+0x4c/0x640
[   29.791871]  ? SyS_epoll_wait+0x1a0/0x1a0
[   29.795994]  do_syscall_64+0x1d5/0x640
[   29.799859]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   29.805023] RIP: 0033:0x7fbb7cfcaf89
[   29.808711] RSP: 002b:00007fbb7cf57268 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   29.816413] RAX: ffffffffffffffda RBX: 00007fbb7d04f430 RCX: 00007fbb7cfcaf89
[   29.823665] RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000008
[   29.830913] RBP: 00007fbb7d01c190 R08: 0000000000000000 R09: 0000000000000000
[   29.838163] R10: 00000000fffeffff R11: 0000000000000246 R12: 776c613d65677568
[   29.845410] R13: 00007ffdc6e2738f R14: 65725f7261656c63 R15: 00007fbb7d04f438
[   29.852663] Code: 9d ec f6 ff e9 de e9 ff ff e8 e3 af df ff 4c 89 ef e8 5b 40 02 00 45 31 f6 e9 88 f5 ff ff e8 ce af df ff 4c 89 ef e8 85 0a 8e 05 <0f> 0b e8 bf af df ff 49 8d bc 24 88 00 00 00 48 b8 00 00 00 00 
[   29.871813] RIP: __handle_mm_fault+0x259a/0x4620 RSP: ffff8880b3677860
[   29.878910] ---[ end trace 11136dc1b37c4477 ]---
[   29.883686] Kernel panic - not syncing: Fatal exception
[   29.889258] Kernel Offset: disabled
[   29.892869] Rebooting in 86400 seconds..