AndreaBozzo commented on issue #7136:
URL: https://github.com/apache/arrow-rs/issues/7136#issuecomment-6447502080
Still reachable on 60.0.0, shall i take?
Repro (`arrow = { version = "=60.0.0", default-features = false, features =
["ffi"] }`, `cargo run` in debug):
```rust
use arrow::array::{Array, StringArray, make_array};
use arrow::buffer::Buffer;
use arrow::datatypes::DataType;
use arrow::ffi::{FFI_ArrowArray, FFI_ArrowSchema, from_ffi};
fn main() {
let strings = StringArray::from(vec!["a", "bb", "ccc"]);
let offsets = strings.offsets().inner().inner().as_slice();
// Same offsets, placed one byte past an aligned address.
let mut bytes = vec![0u8];
bytes.extend_from_slice(offsets);
let misaligned = Buffer::from_vec(bytes).slice(1);
assert_ne!(misaligned.as_ptr() as usize % 4, 0);
let data = unsafe {
arrow::array::ArrayData::builder(DataType::Utf8)
.len(strings.len())
.add_buffer(misaligned)
.add_buffer(strings.values().clone())
.build_unchecked()
};
let array = FFI_ArrowArray::new(&data);
let schema = FFI_ArrowSchema::try_from(&DataType::Utf8).unwrap();
let imported = unsafe { from_ffi(array, &schema) }.unwrap();
println!("{:?}", make_array(imported));
}
```
```
thread 'main' panicked at arrow-array-60.0.0/src/ffi.rs:495:27:
misaligned pointer dereference: address must be a multiple of 0x4 but is
0x1b16d906b4d
thread caused non-unwinding panic. aborting.
```
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