------------[ cut here ]------------
WARNING: CPU: 0 PID: 52 at fs/iomap/iter.c:33 iomap_iter_done fs/iomap/iter.c:33 [inline]
WARNING: CPU: 0 PID: 52 at fs/iomap/iter.c:33 iomap_iter+0xd85/0x1110 fs/iomap/iter.c:78
Modules linked in:
CPU: 1 PID: 52 Comm: kworker/u4:3 Not tainted 5.19.0-rc3-syzkaller-00027-g78ca55889a54 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: loop3 loop_rootcg_workfn
RIP: 0010:iomap_iter_done fs/iomap/iter.c:33 [inline]
RIP: 0010:iomap_iter+0xd85/0x1110 fs/iomap/iter.c:78
Code: fd ff ff e8 fd f3 cd ff e9 f9 f9 ff ff e8 83 2e 81 ff 0f 0b e9 87 f8 ff ff e8 77 2e 81 ff 0f 0b e9 98 f7 ff ff e8 6b 2e 81 ff <0f> 0b e9 38 f7 ff ff e8 5f 2e 81 ff 0f 0b e9 64 f7 ff ff e8 53 2e
RSP: 0018:ffffc90000bd7668 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90000bd7800 RCX: 0000000000000000
RDX: ffff888017a71d80 RSI: ffffffff81f94715 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: d70e000000000000 R11: 0000000000000002 R12: 0000000000000000
R13: d70e000000000000 R14: ffffc90000bd7828 R15: ffffc90000bd7870
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000015c62f8 CR3: 000000002549f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __iomap_dio_rw+0x6b6/0x1a80 fs/iomap/direct-io.c:600
 iomap_dio_rw+0x3c/0xa0 fs/iomap/direct-io.c:689
 ext4_dio_read_iter fs/ext4/file.c:79 [inline]
 ext4_file_read_iter+0x436/0x600 fs/ext4/file.c:130
 call_read_iter include/linux/fs.h:2052 [inline]
 lo_rw_aio.isra.0+0xa54/0xc50 drivers/block/loop.c:454
 do_req_filebacked drivers/block/loop.c:498 [inline]
 loop_handle_cmd drivers/block/loop.c:1859 [inline]
 loop_process_work+0x969/0x2050 drivers/block/loop.c:1894
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>