RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000412011
RDX: 00007fb9a21f9afa RSI: 0000000000000002 RDI: 00007fb9a21f9af0
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000000 R14: 00000000004dbe08 R15: 0000000000000003
WARNING: CPU: 0 PID: 20827 at block/genhd.c:717 __device_add_disk+0xef6/0x1160 block/genhd.c:717
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 20827 Comm: syz-executor.1 Not tainted 5.0.0+ #10
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:__device_add_disk+0xef6/0x1160 block/genhd.c:717
Code: 70 8b 52 fe 0f 0b e9 98 fb ff ff 48 89 bd 18 ff ff ff e8 5d 8b 52 fe 0f 0b 48 8b bd 18 ff ff ff e9 bf f7 ff ff e8 4a 8b 52 fe <0f> 0b e9 80 fe ff ff e8 4e 64 25 fe 4c 89 e7 e8 d6 77 8a fe e9 45
RSP: 0018:ffff88800ebbf470 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88800ebbf560 RCX: ffffc90008088000
RDX: 0000000000040000 RSI: ffffffff831da036 RDI: 0000000000000005
RBP: ffff88800ebbf588 R08: ffff88807fd68300 R09: ffff88807fd68ba0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888057bc81c0
R13: ffff888057bc8250 R14: 00000000fffffff4 R15: 0000000000000000
 device_add_disk+0x2b/0x40 block/genhd.c:739
 add_disk include/linux/genhd.h:422 [inline]
 loop_add+0x635/0x8d0 drivers/block/loop.c:1999
 loop_probe+0x161/0x1a0 drivers/block/loop.c:2071
 kobj_lookup+0x265/0x460 drivers/base/map.c:124
 get_gendisk+0x4d/0x380 block/genhd.c:847
 bdev_get_gendisk fs/block_dev.c:1103 [inline]
 __blkdev_get+0x45a/0x1660 fs/block_dev.c:1489
 blkdev_get+0xc4/0x990 fs/block_dev.c:1648
 blkdev_open+0x205/0x290 fs/block_dev.c:1806
 do_dentry_open+0x488/0x1160 fs/open.c:771
 vfs_open+0xa0/0xd0 fs/open.c:880
 do_last fs/namei.c:3418 [inline]
 path_openat+0x10e9/0x46e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x5d0 fs/open.c:1063
 __do_sys_open fs/open.c:1081 [inline]
 __se_sys_open fs/open.c:1076 [inline]
 __x64_sys_open+0x7e/0xc0 fs/open.c:1076
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412011
Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 b4 17 00 00 c3 48 83 ec 08 e8 2a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 73 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fb9a21f9a80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000412011
RDX: 00007fb9a21f9afa RSI: 0000000000000002 RDI: 00007fb9a21f9af0
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000000 R14: 00000000004dbe08 R15: 0000000000000003
Kernel Offset: disabled
Rebooting in 86400 seconds..