------------[ cut here ]------------
WARNING: CPU: 0 PID: 1436 at fs/xfs/libxfs/xfs_bmap.c:4586 xfs_bmapi_convert_delalloc+0x9c8/0xbe0 fs/xfs/libxfs/xfs_bmap.c:4600
Modules linked in:
CPU: 0 PID: 1436 Comm: kworker/u4:5 Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:xfs_bmapi_convert_delalloc+0x9c8/0xbe0 fs/xfs/libxfs/xfs_bmap.c:4586
Code: e9 1e f7 ff ff 0f 0b e9 85 fa ff ff 8b 94 24 08 01 00 00 48 8b b4 24 10 01 00 00 48 8b 7c 24 70 e8 5d 27 0b 00 e9 4d ff ff ff <0f> 0b 41 bf e4 ff ff ff e9 38 fa ff ff e8 06 cb 0f ff e9 bb f6 ff
RSP: 0018:ffffc900059cf018 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff92000b39e0d RCX: ffffffff829cba5a
RDX: 1ffff92000b39e25 RSI: ffffffffffffffff RDI: ffff8880148b8a84
RBP: ffff888036c61680 R08: 0000000000000000 R09: 0000000000000000
R10: fffffbfff18f6351 R11: ffffc900059cf128 R12: 0000000000000000
R13: ffff888026ce4078 R14: ffff888026ce4000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056082924a680 CR3: 000000001dd4b000 CR4: 0000000000350ef0
Call Trace:
 xfs_convert_blocks fs/xfs/xfs_aops.c:329 [inline]
 xfs_map_blocks+0x410/0xbb0 fs/xfs/xfs_aops.c:451
 iomap_writepage_map fs/iomap/buffered-io.c:1362 [inline]
 iomap_do_writepage+0x548/0x27c0 fs/iomap/buffered-io.c:1534
 write_cache_pages+0x538/0xd10 mm/page-writeback.c:2246
 iomap_writepages+0x3e/0xb0 fs/iomap/buffered-io.c:1565
 xfs_vm_writepages+0xda/0x140 fs/xfs/xfs_aops.c:582
 do_writepages+0xca/0x240 mm/page-writeback.c:2352
 __writeback_single_inode+0xd6/0xca0 fs/fs-writeback.c:1461
 writeback_sb_inodes+0x466/0xc40 fs/fs-writeback.c:1721
 wb_writeback+0x23b/0x8c0 fs/fs-writeback.c:1894
 wb_do_writeback fs/fs-writeback.c:2039 [inline]
 wb_workfn+0x263/0xf40 fs/fs-writeback.c:2080
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296