------------[ cut here ]------------
WARNING: CPU: 0 PID: 5899 at fs/ext4/inode.c:3404 ext4_iomap_begin+0xaa2/0xd30 fs/ext4/inode.c:3404
Modules linked in:
CPU: 0 UID: 0 PID: 5899 Comm: syz.0.16 Not tainted 6.14.0-rc6-syzkaller-g80e54e84911a #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_iomap_begin+0xaa2/0xd30 fs/ext4/inode.c:3404
Code: 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 f8 4b 43 ff 49 be 00 00 00 00 00 fc ff df 48 8b 5c 24 48 e9 61 ff ff ff e8 df 4b 43 ff 90 <0f> 0b 90 41 bc de ff ff ff e9 87 f6 ff ff 89 d9 80 e1 07 38 c1 0f
RSP: 0018:ffffc9000286f560 EFLAGS: 00010293
RAX: ffffffff827e9331 RBX: 0000000010000000 RCX: ffff888040714880
RDX: 0000000000000000 RSI: 00000000000000d4 RDI: 0000000000000000
RBP: ffffc9000286f6c8 R08: ffffffff827e8a78 R09: 1ffff11007efb284
R10: dffffc0000000000 R11: ffffed1007efb285 R12: 00000000000000d4
R13: 1ffff11007efb2e8 R14: 000000000000000a R15: 0000000000000000
FS:  00007fa1fe2596c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000000040 CR3: 0000000044220000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 iomap_iter+0x6a5/0xf60 fs/iomap/iter.c:90
 __iomap_dio_rw+0xeb9/0x25b0 fs/iomap/direct-io.c:700
 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:790
 ext4_dio_write_iter fs/ext4/file.c:575 [inline]
 ext4_file_write_iter+0x17e1/0x1ce0 fs/ext4/file.c:715
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1fd38d169
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:00007fa1fe259038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa1fd5a5fa0 RCX: 00007fa1fd38d169
RDX: 0000000000001006 RSI: 0000400000006c00 RDI: 0000000000000004
RBP: 00007fa1fd40e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa1fd5a5fa0 R15: 00007fffefe92ff8
 </TASK>