md: md1 stopped.
md: md1 stopped.
md: md1 stopped.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8056 at drivers/md/md.c:7190 md_ioctl+0x339f/0x4c50 drivers/md/md.c:7190
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8056 Comm: syz-executor809 Not tainted 4.14.212-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x4b kernel/panic.c:547
 report_bug+0x208/0x249 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:md_ioctl+0x339f/0x4c50 drivers/md/md.c:7190
RSP: 0018:ffff888095dbfa48 EFLAGS: 00010297
RAX: ffff8880b170e140 RBX: 1ffff11012bb7f50 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880b01945e8
RBP: ffff8880b01945c0 R08: 0000000000000000 R09: 00000000000403ec
R10: ffff8880b170e9c8 R11: ffff8880b170e140 R12: 0000000000000000
R13: ffff88808e36b680 R14: 0000000000000932 R15: ffff8880b0194788
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x540/0x1830 block/ioctl.c:594
 block_ioctl+0xd9/0x120 fs/block_dev.c:1893
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x447369
RSP: 002b:00007fd0f3d53d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000006dec48 RCX: 0000000000447369
RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000004
RBP: 00000000006dec40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec4c
R13: 0000000020000000 R14: 00000000004af9e0 R15: 0000000000000003
Kernel Offset: disabled
Rebooting in 86400 seconds..