------------[ cut here ]------------
WARNING: CPU: 1 PID: 4939 at fs/ext4/inode.c:3436 ext4_iomap_begin+0xa0d/0xb80 fs/ext4/inode.c:3436
Modules linked in:
CPU: 1 PID: 4939 Comm: syz.1.137 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:ext4_iomap_begin+0xa0d/0xb80 fs/ext4/inode.c:3436
Code: 89 e8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 07 f3 6f ff 48 bb 00 00 00 00 00 fc ff df e9 71 ff ff ff e8 f3 f2 6f ff <0f> 0b 41 bd de ff ff ff 48 bb 00 00 00 00 00 fc ff df e9 7b ff ff
RSP: 0018:ffffc9000389f740 EFLAGS: 00010287
RAX: ffffffff8207d79d RBX: ffff88805fc50d62 RCX: 0000000000080000
RDX: ffffc9000ed2c000 RSI: 00000000000040b6 RDI: 00000000000040b7
RBP: ffffc9000389f8c0 R08: dffffc0000000000 R09: ffffed100bf8a14a
R10: ffffed100bf8a14a R11: 1ffff1100bf8a149 R12: 00000000000000d4
R13: 1ffff1100bf8a1ac R14: 000000000000000c R15: 0000000000000000
FS:  00007f511b0606c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe104984a90 CR3: 00000000526f8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 iomap_iter+0x620/0xdb0 fs/iomap/iter.c:74
 __iomap_dio_rw+0xa69/0x1a70 fs/iomap/direct-io.c:585
 iomap_dio_rw+0x38/0x90 fs/iomap/direct-io.c:672
 ext4_dio_read_iter fs/ext4/file.c:77 [inline]
 ext4_file_read_iter+0x573/0x700 fs/ext4/file.c:128
 call_read_iter include/linux/fs.h:2166 [inline]
 new_sync_read fs/read_write.c:404 [inline]
 vfs_read+0x725/0xcf0 fs/read_write.c:485
 ksys_read+0x14d/0x250 fs/read_write.c:623
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f511ce19fc9
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:00007f511b060038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f511d071090 RCX: 00007f511ce19fc9
RDX: 0000000000002020 RSI: 0000200000001880 RDI: 0000000000000006
RBP: 00007f511ce9cf91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f511d071128 R14: 00007f511d071090 R15: 00007ffe7be6c3b8
 </TASK>