------------[ cut here ]------------
WARNING: CPU: 1 PID: 6906 at fs/ext4/inode.c:3794 ext4_iomap_begin+0x16b4/0x18f0 fs/ext4/inode.c:3794
Modules linked in:
CPU: 1 UID: 0 PID: 6906 Comm: syz.0.85 Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ext4_iomap_begin+0x16b4/0x18f0 fs/ext4/inode.c:3794
Code: 44 24 18 39 c3 0f 42 c3 41 01 c7 41 89 dc e9 4a f5 ff ff e8 ee 8d 4f ff c7 44 24 20 09 00 00 00 e9 26 f5 ff ff e8 dc 8d 4f ff <0f> 0b 41 be de ff ff ff 4c 8b 7c 24 70 e9 28 ed ff ff 89 d9 80 e1
RSP: 0000:ffffc9000a867540 EFLAGS: 00010293
RAX: ffffffff826cac04 RBX: ffff888057e71d00 RCX: ffff88802467da00
RDX: 0000000000000000 RSI: 00000000000000d4 RDI: 0000000000000000
RBP: ffffc9000a8676d8 R08: ffff888057e71d07 R09: 1ffff1100afce3a0
R10: dffffc0000000000 R11: ffffed100afce3a1 R12: dffffc0000000000
R13: 1ffff1100afce401 R14: 0000000000000000 R15: 00000000000000d4
FS:  00007fd18d5fe6c0(0000) GS:ffff8881267fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c75678f98 CR3: 0000000074bfa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_iter+0x510/0xe00 fs/iomap/iter.c:108
 __iomap_dio_rw+0xc53/0x1dd0 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
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_pwrite64 fs/read_write.c:793 [inline]
 __do_sys_pwrite64 fs/read_write.c:801 [inline]
 __se_sys_pwrite64 fs/read_write.c:798 [inline]
 __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x8a/0x300 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd18df8ebe9
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:00007fd18d5fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd18e1b5fa0 RCX: 00007fd18df8ebe9
RDX: 0000000000000001 RSI: 0000200000000880 RDI: 0000000000000006
RBP: 00007fd18e011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000083 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd18e1b6038 R14: 00007fd18e1b5fa0 R15: 00007fffec7efe28
 </TASK>