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WARNING: CPU: 0 PID: 8741 at drivers/md/md.c:7514 md_ioctl+0x3cc8/0x54a0 drivers/md/md.c:7514
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8741 Comm: syz-executor.3 Not tainted 5.8.0-rc5-next-20200714-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x45 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:542
RIP: 0010:md_ioctl+0x3cc8/0x54a0 drivers/md/md.c:7514
Code: 00 00 00 e9 cb eb ff ff 48 8d 84 24 a0 00 00 00 48 89 44 24 08 e9 b0 e2 ff ff 41 bf f3 ff ff ff e9 38 c4 ff ff e8 c8 9e ec fb <0f> 0b e9 ef d1 ff ff 44 89 4c 24 18 e8 b7 9e ec fb 31 ff 44 89 f6
RSP: 0018:ffffc9000740fba0 EFLAGS: 00010216
RAX: 000000000000cfc4 RBX: 0000000000000932 RCX: ffffc9000e99a000
RDX: 0000000000040000 RSI: ffffffff858792a8 RDI: 0000000000000007
RBP: ffff888099be2000 R08: 0000000000000000 R09: ffff888099be202f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88821817d140 R14: 0000000000000932 R15: 0000000000000001
 __blkdev_driver_ioctl block/ioctl.c:224 [inline]
 blkdev_ioctl+0x28c/0x700 block/ioctl.c:620
 block_ioctl+0xf9/0x140 fs/block_dev.c:1949
 vfs_ioctl fs/ioctl.c:48 [inline]
 ksys_ioctl+0x11a/0x180 fs/ioctl.c:753
 __do_sys_ioctl fs/ioctl.c:762 [inline]
 __se_sys_ioctl fs/ioctl.c:760 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cba9
Code: Bad RIP value.
RSP: 002b:00007fca42876c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004e29a0 RCX: 000000000045cba9
RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000004
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000022c R14: 00000000004c48c6 R15: 00007fca428776d4
Kernel Offset: disabled
Rebooting in 86400 seconds..