RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00000000000003ed R14: 00000000004c685e R15: 0000000000000032
------------[ cut here ]------------
WARNING: CPU: 0 PID: 11960 at block/genhd.c:849 __device_add_disk+0xf1f/0x1170 block/genhd.c:849
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 11960 Comm: syz-executor.5 Not tainted 5.7.0-rc1-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+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 fixup_bug arch/x86/kernel/traps.c:170 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:__device_add_disk+0xf1f/0x1170 block/genhd.c:849
Code: f2 ff ff e8 63 48 ec fd 0f 0b e9 0b f9 ff ff 48 89 7c 24 10 e8 52 48 ec fd 0f 0b 48 8b 7c 24 10 e9 5a f5 ff ff e8 41 48 ec fd <0f> 0b e9 80 fe ff ff e8 d5 78 bd fd 48 8b 7c 24 18 e8 1b 0f 2a fe
RSP: 0018:ffffc90005557cd8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90013f5f000
RDX: 0000000000040000 RSI: ffffffff8386ebbf RDI: 0000000000000005
RBP: ffff888095f59000 R08: ffff88805553a1c0 R09: ffffed1015cc7104
R10: ffff8880ae63881b R11: ffffed1015cc7103 R12: 1ffff92000aaafa4
R13: ffff888095f59668 R14: ffff888095f59088 R15: 00000000fffffff4
 add_disk include/linux/genhd.h:294 [inline]
 loop_add+0x616/0x8b0 drivers/block/loop.c:2099
 loop_control_ioctl drivers/block/loop.c:2200 [inline]
 loop_control_ioctl+0x153/0x340 drivers/block/loop.c:2182
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl+0x11a/0x180 fs/ioctl.c:763
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl fs/ioctl.c:770 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:770
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c889
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa95ac26c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa95ac276d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000005
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00000000000003ed R14: 00000000004c685e R15: 0000000000000032
Kernel Offset: disabled
Rebooting in 86400 seconds..