------------[ cut here ]------------
WARNING: CPU: 0 PID: 6179 at fs/iomap/iter.c:49 iomap_iter_done fs/iomap/iter.c:49 [inline]
WARNING: CPU: 0 PID: 6179 at fs/iomap/iter.c:49 iomap_iter+0x108c/0x14e0 fs/iomap/iter.c:95
Modules linked in:
CPU: 0 PID: 6179 Comm: kworker/u4:11 Not tainted 6.2.0-rc1-next-20221226-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: loop0 loop_workfn
RIP: 0010:iomap_iter_done fs/iomap/iter.c:49 [inline]
RIP: 0010:iomap_iter+0x108c/0x14e0 fs/iomap/iter.c:95
Code: 36 73 8e e8 f6 ac d2 ff e9 6b f5 ff ff e8 ac ca 84 ff 0f 0b e9 73 f6 ff ff e8 a0 ca 84 ff 0f 0b e9 c5 f4 ff ff e8 94 ca 84 ff <0f> 0b e9 65 f4 ff ff e8 88 ca 84 ff 0f 0b e9 91 f4 ff ff e8 7c ca
RSP: 0018:ffffc90015ef7658 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90015ef77f0 RCX: 0000000000000000
RDX: ffff88802a469d40 RSI: ffffffff81fc3b3c RDI: 0000000000000006
RBP: fffffffffdfdffff R08: 0000000000000006 R09: 00000ffffdfdf000
R10: fffffffffdfdffff R11: 0000000000000000 R12: ffffffff8e733600
R13: ffffc90015ef77f8 R14: ffffc90015ef7818 R15: 00000ffffdfdf000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0e2c985fc0 CR3: 000000000c48e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __iomap_dio_rw+0x72c/0x1cd0 fs/iomap/direct-io.c:600
 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:689
 ext4_dio_read_iter fs/ext4/file.c:94 [inline]
 ext4_file_read_iter+0x4be/0x690 fs/ext4/file.c:145
 call_read_iter include/linux/fs.h:2180 [inline]
 lo_rw_aio.isra.0+0x890/0xc50 drivers/block/loop.c:454
 do_req_filebacked drivers/block/loop.c:498 [inline]
 loop_handle_cmd drivers/block/loop.c:1873 [inline]
 loop_process_work+0xa55/0x2070 drivers/block/loop.c:1908
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>