binder: 10049:10056 transaction failed 29201/-71, size 0-0 line 2922
flags: 0x4000000000004004(referenced|head)
page dumped because: VM_BUG_ON_PAGE(!PageLocked(page))
binder: undelivered TRANSACTION_ERROR: 29201
------------[ cut here ]------------
kernel BUG at mm/filemap.c:817!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 10066 Comm: syz-executor1 Not tainted 4.4.151-g37af2ff #85
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b966c800 task.stack: ffff8801d2630000
RIP: 0010:[<ffffffff81421495>]  [<ffffffff81421495>] unlock_page+0x115/0x150 mm/filemap.c:817
RSP: 0018:ffff8801d2637ac0  EFLAGS: 00010212
RAX: ffffffff83a6f940 RBX: ffffea0002db0000 RCX: ffffc90004eb1000
RDX: 0000000000020e7a RSI: ffffffff81519469 RDI: ffff8801b966d0dc
RBP: ffff8801d2637ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffea0002db0300 R14: ffffea0002db0008 R15: ffff8801d2637ba8
FS:  00007f6132e5b700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffccea54c90 CR3: 00000000ad826000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffea0002db0000 dffffc0000000000 ffffea0002db0300 ffffea0002db0008
 ffff8801d2637bd0 ffffffff812cf2cd 1ffff1003a4c6f61 ffff8801d2637d60
 ffff8800b69fad00 1ffff1003a4c6f69 00000001841e892d ffff8801d2637d50
Call Trace:
 [<ffffffff812cf2cd>] get_futex_key+0x8ad/0xdc0 kernel/futex.c:598
 [<ffffffff812d402e>] futex_wake_op kernel/futex.c:1510 [inline]
 [<ffffffff812d402e>] do_futex+0x79e/0x17f0 kernel/futex.c:3236
 [<ffffffff812d5270>] SYSC_futex kernel/futex.c:3286 [inline]
 [<ffffffff812d5270>] SyS_futex+0x1f0/0x300 kernel/futex.c:3254
 [<ffffffff838cc125>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: e8 48 8d 04 c0 49 8d 3c c6 e8 b8 bc df ff 5b 41 5c 41 5d 41 5e 5d c3 e8 7a 31 f3 ff 48 c7 c6 e0 bb a9 83 48 89 df e8 bb ee 06 00 <0f> 0b 48 89 df e8 91 d1 0d 00 e9 0a ff ff ff e8 87 d1 0d 00 e9 
RIP  [<ffffffff81421495>] unlock_page+0x115/0x150 mm/filemap.c:817
 RSP <ffff8801d2637ac0>
---[ end trace ea468031fcac2627 ]---