BTRFS warning (device loop5): couldn't read tree root
assertion failed: !tmp, in fs/btrfs/disk-io.c:1002
------------[ cut here ]------------
kernel BUG at fs/btrfs/messages.c:259!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7915 Comm: syz-executor.5 Not tainted 6.4.0-rc3-syzkaller-00004-g421ca22e3138 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259
Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 09 12 f7 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 40 89 97 8a e8 14 f6 da fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 e3 11 f7 fd 48 89 ef 5d 48
RSP: 0018:ffffc900061af680 EFLAGS: 00010286
RAX: 0000000000000032 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8168b8fc RDI: 0000000000000005
RBP: ffffffff8a94d8c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000283038 R12: ffffffff8a94c940
R13: 00000000000003ea R14: dffffc0000000000 R15: ffff888012e94060
FS:  00007f7c95446700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe19dc86000 CR3: 0000000026f3f000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 btrfs_global_root_insert+0x1f3/0x250 fs/btrfs/disk-io.c:1002
 load_global_roots_objectid+0x12e/0x7e0 fs/btrfs/disk-io.c:2384
 load_global_roots fs/btrfs/disk-io.c:2418 [inline]
 btrfs_read_roots fs/btrfs/disk-io.c:2445 [inline]
 init_tree_roots fs/btrfs/disk-io.c:2868 [inline]
 open_ctree+0x22e5/0x55f0 fs/btrfs/disk-io.c:3566
 btrfs_fill_super fs/btrfs/super.c:1156 [inline]
 btrfs_mount_root+0xa0c/0xd50 fs/btrfs/super.c:1524
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x350 fs/super.c:1510
 fc_mount fs/namespace.c:1035 [inline]
 vfs_kern_mount.part.0+0xd3/0x170 fs/namespace.c:1065
 vfs_kern_mount+0x40/0x60 fs/namespace.c:1052
 btrfs_mount+0x23f/0xb20 fs/btrfs/super.c:1584
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x350 fs/super.c:1510
 do_new_mount fs/namespace.c:3039 [inline]
 path_mount+0x134b/0x1e40 fs/namespace.c:3369
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c9468d69a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c95445f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000050fe RCX: 00007f7c9468d69a
RDX: 0000000020005100 RSI: 0000000020005140 RDI: 00007f7c95445fe0
RBP: 00007f7c95446020 R08: 00007f7c95446020 R09: 0000000000800000
R10: 0000000000800000 R11: 0000000000000202 R12: 0000000020005100
R13: 0000000020005140 R14: 00007f7c95445fe0 R15: 0000000020000100
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259
Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 09 12 f7 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 40 89 97 8a e8 14 f6 da fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 e3 11 f7 fd 48 89 ef 5d 48
RSP: 0018:ffffc900061af680 EFLAGS: 00010286
RAX: 0000000000000032 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8168b8fc RDI: 0000000000000005
RBP: ffffffff8a94d8c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000283038 R12: ffffffff8a94c940
R13: 00000000000003ea R14: dffffc0000000000 R15: ffff888012e94060
FS:  00007f7c95446700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f9b9fe000 CR3: 0000000026f3f000 CR4: 0000000000350ef0