------------[ cut here ]------------
WARNING: fs/ext4/inode.c:3794 at ext4_iomap_begin+0x1613/0x1820 fs/ext4/inode.c:3794, CPU#0: syz.6.388/10295
Modules linked in:
CPU: 0 UID: 0 PID: 10295 Comm: syz.6.388 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ext4_iomap_begin+0x1613/0x1820 fs/ext4/inode.c:3794
Code: e9 a7 ec ff ff e8 9d 4e 50 ff 41 bc e4 ff ff ff 4c 8b 6c 24 08 e9 92 ec ff ff e8 88 4e 50 ff e9 88 ec ff ff e8 7e 4e 50 ff 90 <0f> 0b 90 41 bc de ff ff ff e9 33 f0 ff ff 44 89 e1 80 e1 07 38 c1
RSP: 0018:ffffc900048173c0 EFLAGS: 00010287
RAX: ffffffff826f5ea2 RBX: 0000000000000004 RCX: 0000000000080000
RDX: ffffc9000efbe000 RSI: 00000000000001b7 RDI: 00000000000001b8
RBP: ffffc90004817558 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100cdbc77c R12: ffff888066de3fc2
R13: ffff888066de3ec0 R14: 00000000000000d4 R15: dffffc0000000000
FS:  00007fd7dc8366c0(0000) GS:ffff888126cec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd7dc7f3f98 CR3: 000000003c7a2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_iter+0x600/0xf40 fs/iomap/iter.c:110
 __iomap_dio_rw+0xc3d/0x1d90 fs/iomap/direct-io.c:752
 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:847
 ext4_dio_write_iter fs/ext4/file.c:580 [inline]
 ext4_file_write_iter+0x16a8/0x1be0 fs/ext4/file.c:721
 do_iter_readv_writev+0x635/0x8d0 fs/read_write.c:-1
 vfs_writev+0x323/0x970 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_sys_pwritev2 fs/read_write.c:1211 [inline]
 __se_sys_pwritev2+0x17c/0x2a0 fs/read_write.c:1202
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7de5cf749
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:00007fd7dc836038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fd7de825fa0 RCX: 00007fd7de5cf749
RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007fd7de653f91 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd7de826038 R14: 00007fd7de825fa0 R15: 00007ffdb81cdea8
 </TASK>