blk_update_request: I/O error, dev loop0, sector 1536
blk_update_request: I/O error, dev loop0, sector 1791
page dumped because: VM_BUG_ON_PAGE(!PageLocked(page))
binder: 14836:14842 ioctl c0306201 20007000 returned -22
------------[ 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: 14818 Comm: syz-executor5 Not tainted 4.4.153-g5e24b4e #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88009e68e000 task.stack: ffff8801cc9b0000
RIP: 0010:[<ffffffff81421415>]  [<ffffffff81421415>] unlock_page+0x115/0x150 mm/filemap.c:817
RSP: 0018:ffff8801cc9b77c8  EFLAGS: 00010216
RAX: ffffffff83a6f940 RBX: ffffea0002bb0000 RCX: ffffc900066b1000
RDX: 000000000001f8a1 RSI: ffffffff815195a9 RDI: ffff88009e68e8dc
RBP: ffff8801cc9b77e8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffea0002bb0300 R14: ffffea0002bb0008 R15: ffff8801cc9b78b0
FS:  00007f898aba4700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0a842bb9a0 CR3: 00000001cd101000 CR4: 00000000001606f0
Stack:
 ffffea0002bb0000 dffffc0000000000 ffffea0002bb0300 ffffea0002bb0008
 ffff8801cc9b78d8 ffffffff812cf25d 0000000000000000 ffff8801cc9b7ab0
 ffff8801d0e1ca00 1ffff10039936f0a 0000000100000000 ffff8801cc9b7aa0
Call Trace:
 [<ffffffff812cf25d>] get_futex_key+0x8ad/0xdc0 kernel/futex.c:598
 [<ffffffff812cfca9>] futex_wait_setup+0xd9/0x330 kernel/futex.c:2376
 [<ffffffff812d01af>] futex_wait+0x2af/0x600 kernel/futex.c:2439
 [<ffffffff812d3ac4>] do_futex+0x2a4/0x17f0 kernel/futex.c:3226
 [<ffffffff812d5200>] SYSC_futex kernel/futex.c:3286 [inline]
 [<ffffffff812d5200>] SyS_futex+0x1f0/0x300 kernel/futex.c:3254
 [<ffffffff838cc865>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: e8 48 8d 04 c0 49 8d 3c c6 e8 88 bd df ff 5b 41 5c 41 5d 41 5e 5d c3 e8 8a 31 f3 ff 48 c7 c6 e0 bb a9 83 48 89 df e8 bb ee 06 00 <0f> 0b 48 89 df e8 51 d3 0d 00 e9 0a ff ff ff e8 47 d3 0d 00 e9 
RIP  [<ffffffff81421415>] unlock_page+0x115/0x150 mm/filemap.c:817
 RSP <ffff8801cc9b77c8>
---[ end trace 641b89ed19bb399b ]---
binder: BINDER_SET_CONTEXT_MGR already set
binder: 14836:14857 ioctl 40046207 0 returned -16