------------[ cut here ]------------
WARNING: fs/ext4/inode.c:3794 at ext4_iomap_begin+0x16c5/0x1900 fs/ext4/inode.c:3794, CPU#0: syz.7.667/9076
Modules linked in:
CPU: 0 UID: 0 PID: 9076 Comm: syz.7.667 Not tainted 6.17.0-rc1-next-20250812-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ext4_iomap_begin+0x16c5/0x1900 fs/ext4/inode.c:3794
Code: 24 18 39 c3 0f 42 c3 41 01 c7 41 89 dc e9 3c f5 ff ff e8 3e 46 4c ff c7 44 24 20 09 00 00 00 e9 18 f5 ff ff e8 2c 46 4c ff 90 <0f> 0b 90 41 be de ff ff ff 4c 8b 7c 24 70 e9 18 ed ff ff 89 d9 80
RSP: 0018:ffffc9000cfb70a0 EFLAGS: 00010283
RAX: ffffffff82736614 RBX: ffff888053e7d660 RCX: 0000000000080000
RDX: ffffc9000f3c5000 RSI: 0000000000000da1 RDI: 0000000000000da2
RBP: ffffc9000cfb7238 R08: ffff888053e7d667 R09: 1ffff1100a7cfacc
R10: dffffc0000000000 R11: ffffed100a7cfacd R12: dffffc0000000000
R13: 1ffff1100a7cfb2d R14: 0000000000000000 R15: 00000000000000d4
FS:  00007f6b082606c0(0000) GS:ffff888125c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0122e52d20 CR3: 0000000054b28000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_iter+0x531/0xde0 fs/iomap/iter.c:108
 __iomap_dio_rw+0xc57/0x1e30 fs/iomap/direct-io.c:728
 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:818
 ext4_dio_write_iter fs/ext4/file.c:580 [inline]
 ext4_file_write_iter+0x16a2/0x1bc0 fs/ext4/file.c:721
 iter_file_splice_write+0x9c6/0x10b0 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6b0738ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6b08260038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f6b075b6090 RCX: 00007f6b0738ebe9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f6b07411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6b075b6128 R14: 00007f6b075b6090 R15: 00007ffc109693c8
 </TASK>