Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5dd30cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000004c80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
WARNING: CPU: 0 PID: 6899 at block/genhd.c:719 __device_add_disk+0xf00/0x1170 block/genhd.c:719
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 6899 Comm: syz-executor.0 Not tainted 5.0.0+ #22
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+0xf00/0x1170 block/genhd.c:719
Code: 76 02 4e fe 0f 0b e9 98 fb ff ff 48 89 bd 18 ff ff ff e8 63 02 4e fe 0f 0b 48 8b bd 18 ff ff ff e9 b5 f7 ff ff e8 50 02 4e fe <0f> 0b e9 80 fe ff ff e8 14 b7 20 fe 4c 89 e7 e8 cc fb 85 fe e9 3b
RSP: 0018:ffff8880642efc80 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff8880642efd70 RCX: ffffc90005ff4000
RDX: 0000000000040000 RSI: ffffffff832261e0 RDI: 0000000000000005
RBP: ffff8880642efd98 R08: ffff888056836180 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff8880639d5380
R13: ffff8880639d5410 R14: 00000000fffffff4 R15: 0000000000000000
 device_add_disk+0x2b/0x40 block/genhd.c:741
 add_disk include/linux/genhd.h:422 [inline]
 loop_add+0x635/0x8d0 drivers/block/loop.c:2013
 loop_control_ioctl drivers/block/loop.c:2114 [inline]
 loop_control_ioctl+0x165/0x360 drivers/block/loop.c:2096
 __do_compat_sys_ioctl fs/compat_ioctl.c:1052 [inline]
 __se_compat_sys_ioctl fs/compat_ioctl.c:998 [inline]
 __ia32_compat_sys_ioctl+0x197/0x620 fs/compat_ioctl.c:998
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7ff8869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5dd30cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000004c80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..