attempt to access beyond end of device
loop1: rw=48, want=8200, limit=20
F2FS-fs (loop1): invalid crc value
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 8075 Comm: syz-executor5 Not tainted 4.9.95-g142d4b5 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801cb248000 task.stack: ffff8801a2ad0000
RIP: 0010:[<ffffffff825c8627>]  [<ffffffff825c8627>] loop_set_fd drivers/block/loop.c:886 [inline]
RIP: 0010:[<ffffffff825c8627>]  [<ffffffff825c8627>] lo_ioctl+0x1517/0x1aa0 drivers/block/loop.c:1347
RSP: 0018:ffff8801a2ad7b08  EFLAGS: 00010206
RAX: 0000000000000036 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 000000000000013a RSI: ffffffff825c85e6 RDI: 00000000000001b0
RBP: ffff8801a2ad7b80 R08: ffff8801db21e400 R09: 0000000000000001
R10: ffffe8ffffc3f120 R11: ffffe8ffffc3f14b R12: ffff8801b6422f90
R13: ffff8801b6421140 R14: ffff8801d417f600 R15: ffff8801d417f758
FS:  00007fe846cdf700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bc21000 CR3: 00000001ced82000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801a2ad7d38 000000000072b000 ffff8801d417f750 ffff8801a2ad6000
 ffff8801a2ad7b80 ffff8801b6423188 ffff8801cbbfda00 ffff8801b6421220
 000000000002009d 0000000100000000 ffff8801b6421140 1ffff1003455af73
Call Trace:
 [<ffffffff81e54b86>] __blkdev_driver_ioctl block/ioctl.c:294 [inline]
 [<ffffffff81e54b86>] blkdev_ioctl+0x7b6/0x1a70 block/ioctl.c:590
 [<ffffffff816302ee>] block_ioctl+0xde/0x120 fs/block_dev.c:1688
 [<ffffffff815b04dc>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff815b04dc>] file_ioctl fs/ioctl.c:493 [inline]
 [<ffffffff815b04dc>] do_vfs_ioctl+0x1ac/0x11a0 fs/ioctl.c:677
 [<ffffffff815b155f>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<ffffffff815b155f>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839f3313>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: e8 03 80 3c 08 00 0f 85 92 02 00 00 48 8b 9b f0 00 00 00 48 b9 00 00 00 00 00 fc ff df 48 8d bb b0 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 bf 03 00 00 48 8b 9b b0 01 00 00 48 b9 00 00 
RIP  [<ffffffff825c8627>] loop_set_fd drivers/block/loop.c:886 [inline]
RIP  [<ffffffff825c8627>] lo_ioctl+0x1517/0x1aa0 drivers/block/loop.c:1347
 RSP <ffff8801a2ad7b08>
---[ end trace d420c0e618327e79 ]---