general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
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Modules linked in:
CPU: 1 PID: 12759 Comm: syz-executor2 Not tainted 4.9.40-ged32335 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801a5a74680 task.stack: ffff8801a5a90000
RIP: 0010:[<ffffffff824ab658>]  [<ffffffff824ab658>] loop_set_fd drivers/block/loop.c:894 [inline]
RIP: 0010:[<ffffffff824ab658>]  [<ffffffff824ab658>] lo_ioctl+0x5a8/0x1990 drivers/block/loop.c:1340
RSP: 0018:ffff8801a5a97b48  EFLAGS: 00010206
RAX: 0000000000000036 RBX: dffffc0000000000 RCX: ffffc90000914000
RDX: 000000000000008c RSI: 0000000000000002 RDI: 00000000000001b0
RBP: ffff8801a5a97bc8 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff10034b52f26 R12: 0000000000000000
R13: ffff8801d5c35f80 R14: 0000000000000000 R15: ffff8801d9c16780
FS:  00007f6a8e7f5700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001ddbc21000 CR3: 00000001cf233000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81bd3abc ffffffff81bd37a2 ffff8801a5a76000 ffff8801d5c360d0
 ffff880100700000 ffff8801d607d9c0 ffff8801d607d7d0 ffff8801a5a99400
 ffff8801d9c16860 ffff88010002001d ffff8801d5c360d8 ffff8801d9c16780
Call Trace:
 [<ffffffff81d309ba>] __blkdev_driver_ioctl block/ioctl.c:294 [inline]
 [<ffffffff81d309ba>] blkdev_ioctl+0x4aa/0x1a60 block/ioctl.c:590
 [<ffffffff8162563e>] block_ioctl+0xde/0x120 fs/block_dev.c:1686
 [<ffffffff815a794a>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff815a794a>] do_vfs_ioctl+0x1aa/0x10c0 fs/ioctl.c:679
 [<ffffffff815a88ef>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<ffffffff815a88ef>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<ffffffff838a06c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Code: 00 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ee 12 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b0 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 e4 12 00 00 4d 8b a4 24 b0 01 00 00 4c 89 e0 
RIP  [<ffffffff824ab658>] loop_set_fd drivers/block/loop.c:894 [inline]
RIP  [<ffffffff824ab658>] lo_ioctl+0x5a8/0x1990 drivers/block/loop.c:1340
 RSP <ffff8801a5a97b48>
---[ end trace 17dd2d7648ffdf4a ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..