syzbot

   __btrfs_ioctl_snap_create+0x344/0x460 fs/btrfs/ioctl.c:1294
   btrfs_ioctl_snap_create+0x13c/0x190 fs/btrfs/ioctl.c:1321
   btrfs_ioctl+0xbbf/0xd40
   vfs_ioctl fs/ioctl.c:51 [inline]
   __do_sys_ioctl fs/ioctl.c:871 [inline]
   __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7028 at fs/btrfs/extent-tree.c:851 lookup_inline_extent_backref+0x1041/0x14b0
Modules linked in:
CPU: 0 PID: 7028 Comm: syz-executor293 Not tainted 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:lookup_inline_extent_backref+0x1041/0x14b0 fs/btrfs/extent-tree.c:851
Code: 9c 24 28 01 00 00 bf c0 00 00 00 89 de e8 b7 7c 00 fe 81 fb c0 00 00 00 0f 83 fd 00 00 00 e8 16 7a 00 fe eb 81 e8 0f 7a 00 fe <0f> 0b 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 17 29
RSP: 0018:ffffc9000eb56da0 EFLAGS: 00010293
RAX: ffffffff838da351 RBX: 0000000000000000 RCX: ffff88807c693b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000eb56f50 R08: ffffffff838d975a R09: 0000000000000000
R10: ffffc9000eb56b00 R11: fffff52001d6ad62 R12: dffffc0000000000
R13: ffff88807debf000 R14: ffff88801bb68000 R15: ffffc9000eb56ec0
FS:  00007f29736d96c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29737927f8 CR3: 000000001a378000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 insert_inline_extent_backref+0xda/0x2a0 fs/btrfs/extent-tree.c:1194
 __btrfs_inc_extent_ref+0x123/0x5b0 fs/btrfs/extent-tree.c:1494
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1715 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1742 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1988 [inline]
 __btrfs_run_delayed_refs+0x1199/0x4000 fs/btrfs/extent-tree.c:2049
 btrfs_run_delayed_refs+0x2f3/0x470 fs/btrfs/extent-tree.c:2161
 qgroup_account_snapshot+0xce/0x340 fs/btrfs/transaction.c:1570
 create_pending_snapshot+0x1050/0x28b0 fs/btrfs/transaction.c:1846
 create_pending_snapshots+0x195/0x1d0 fs/btrfs/transaction.c:1915
 btrfs_commit_transaction+0xf1c/0x3730 fs/btrfs/transaction.c:2388
 create_snapshot+0x4a5/0x7e0 fs/btrfs/ioctl.c:845
 btrfs_mksubvol+0x5d0/0x750 fs/btrfs/ioctl.c:995
 btrfs_mksnapshot+0xb5/0xf0 fs/btrfs/ioctl.c:1041
 __btrfs_ioctl_snap_create+0x344/0x460 fs/btrfs/ioctl.c:1294
 btrfs_ioctl_snap_create+0x13c/0x190 fs/btrfs/ioctl.c:1321
 btrfs_ioctl+0xbbf/0xd40
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2973746589
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1b 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f29736d9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f29737cc718 RCX: 00007f2973746589
RDX: 0000000020001380 RSI: 0000000050009401 RDI: 0000000000000008
RBP: 00007f29737cc710 R08: 00007f29736d96c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f29737cc71c
R13: 000000000000006e R14: 00007ffc4107ae40 R15: 00007ffc4107af28
 </TASK>