------------[ cut here ]------------
WARNING: CPU: 1 PID: 9 at fs/xfs/libxfs/xfs_bmap.c:4641 xfs_bmapi_convert_delalloc+0x468/0x480 fs/xfs/libxfs/xfs_bmap.c:4655
Modules linked in:
CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: writeback wb_workfn (flush-7:2)
RIP: 0010:xfs_bmapi_convert_delalloc+0x468/0x480 fs/xfs/libxfs/xfs_bmap.c:4641
Code: fe ff ff 48 8b 4d 38 e9 83 fd ff ff 8b 94 24 90 00 00 00 48 8b b4 24 98 00 00 00 48 8b 7c 24 20 e8 ad 0b 03 00 e9 4b ff ff ff <0f> 0b 41 b9 e4 ff ff ff e9 21 fe ff ff e8 a6 cb bd 00 66 0f 1f 44
RSP: 0018:ffffc900000537d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888113e9af88 RCX: 000000000000000b
RDX: 00000000ffffffff RSI: ffffffffffffffff RDI: ffff8881141bd800
RBP: ffff888113e9af40 R08: ffffffff81454e5c R09: 0000000000000000
R10: 0000000000000001 R11: 000000000000002a R12: 0000000000000000
R13: ffffc90000053810 R14: 0000000000000000 R15: ffff888115ebe000
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa02851c000 CR3: 0000000002e21000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 xfs_convert_blocks fs/xfs/xfs_aops.c:245 [inline]
 xfs_map_blocks+0x1a2/0x470 fs/xfs/xfs_aops.c:366
 iomap_writepage_map fs/iomap/buffered-io.c:1320 [inline]
 iomap_do_writepage+0x148/0x950 fs/iomap/buffered-io.c:1485
 write_cache_pages+0x209/0x4b0 mm/page-writeback.c:2277
 iomap_writepages+0x17/0x30 fs/iomap/buffered-io.c:1516
 xfs_vm_writepages+0x78/0xa0 fs/xfs/xfs_aops.c:488
 do_writepages+0x116/0x1e0 mm/page-writeback.c:2386
 __writeback_single_inode+0x58/0x3f0 fs/fs-writeback.c:1647
 writeback_sb_inodes+0x210/0x550 fs/fs-writeback.c:1930
 wb_writeback+0xc9/0x350 fs/fs-writeback.c:2104
 wb_do_writeback fs/fs-writeback.c:2247 [inline]
 wb_workfn+0xf0/0x570 fs/fs-writeback.c:2288
 process_one_work+0x26f/0x4e0 kernel/workqueue.c:2310
 worker_thread+0x4d/0x3b0 kernel/workqueue.c:2457
 kthread+0x122/0x140 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>