------------[ cut here ]------------ WARNING: CPU: 1 PID: 58 at fs/btrfs/block-rsv.c:523 btrfs_use_block_rsv+0x60d/0x860 fs/btrfs/block-rsv.c:523 Modules linked in: CPU: 1 PID: 58 Comm: kworker/u4:4 Not tainted 6.7.0-rc2-syzkaller-00095-gd3fa86b1a7b4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: btrfs-endio-write btrfs_work_helper RIP: 0010:btrfs_use_block_rsv+0x60d/0x860 fs/btrfs/block-rsv.c:523 Code: ea 83 e2 07 38 d0 7f 0c 84 c0 74 08 48 89 ef e8 69 49 44 fe 0f b6 73 5a ba e4 ff ff ff 48 c7 c7 a0 3f 19 8b e8 74 c9 b3 fd 90 <0f> 0b 90 90 e9 f5 fd ff ff e8 25 a3 ed fd 49 8d 9d 88 04 00 00 e9 RSP: 0018:ffffc90001597130 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88806c06d690 RCX: ffffffff814db209 RDX: ffff888016ead940 RSI: ffffffff814db216 RDI: 0000000000000001 RBP: ffff88806c06d6ea R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000001000 R13: ffff88807e388000 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b22ca19c28 CR3: 000000001c4d3000 CR4: 0000000000350ef0 Call Trace: btrfs_alloc_tree_block+0x1e0/0x12c0 fs/btrfs/extent-tree.c:5114 btrfs_force_cow_block+0x3e5/0x19e0 fs/btrfs/ctree.c:563 btrfs_cow_block+0x2b6/0xb30 fs/btrfs/ctree.c:741 push_leaf_left+0x315/0x4d0 fs/btrfs/ctree.c:3485 split_leaf+0x9c3/0x13b0 fs/btrfs/ctree.c:3681 search_leaf fs/btrfs/ctree.c:1944 [inline] btrfs_search_slot+0x24ba/0x2fd0 fs/btrfs/ctree.c:2131 btrfs_insert_empty_items+0xb6/0x1b0 fs/btrfs/ctree.c:4285 btrfs_insert_empty_item fs/btrfs/ctree.h:657 [inline] insert_reserved_file_extent+0x7aa/0x950 fs/btrfs/inode.c:2907 insert_ordered_extent_file_extent fs/btrfs/inode.c:3005 [inline] btrfs_finish_one_ordered+0x12dc/0x20d0 fs/btrfs/inode.c:3113 btrfs_work_helper+0x210/0xbf0 fs/btrfs/async-thread.c:315 process_one_work+0x886/0x15d0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242