Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd72c8b9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd72c8b9c90 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd72c8ba6d4
R13: 00000000004c2f2f R14: 00000000004d63d0 R15: 0000000000000005
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3453 at block/genhd.c:732 __device_add_disk.cold+0x11/0x19e block/genhd.c:732
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 3453 Comm: syz-executor.5 Not tainted 5.2.0+ #71
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+0x16f/0x1f0 lib/dump_stack.c:113
 panic+0x2dc/0x755 kernel/panic.c:219
 __warn.cold+0x20/0x4c kernel/panic.c:576
 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+0x23/0x30 arch/x86/entry/entry_64.S:1026
RIP: 0010:__device_add_disk.cold+0x11/0x19e block/genhd.c:732
Code: 41 bc f0 ff ff ff e8 ff c5 2f fe 48 8b 7d d0 e8 e2 05 7f fe e9 ea 7a ff ff e8 d8 90 45 fe 48 c7 c7 00 96 c4 87 e8 e0 c5 2f fe <0f> 0b e9 7b de ff ff e8 c0 90 45 fe 48 c7 c7 00 96 c4 87 e8 c8 c5
RSP: 0018:ffff88805f39faf8 EFLAGS: 00010286
RAX: 0000000000000024 RBX: 00000000fffffff4 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b9de2 RDI: ffffed100be73f51
RBP: ffff88805f39fc10 R08: 0000000000000024 R09: ffffed1015d26079
R10: ffffed1015d26078 R11: ffff8880ae9303c7 R12: ffff888065816200
R13: ffff888065816290 R14: ffff88805f39fbe8 R15: ffff888065816204
 device_add_disk+0x2b/0x40 block/genhd.c:754
 add_disk include/linux/genhd.h:429 [inline]
 loop_add+0x635/0x8d0 drivers/block/loop.c:2048
 loop_control_ioctl drivers/block/loop.c:2149 [inline]
 loop_control_ioctl+0x165/0x360 drivers/block/loop.c:2131
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd72c8b9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd72c8b9c90 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd72c8ba6d4
R13: 00000000004c2f2f R14: 00000000004d63d0 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..