Ziru Niu created ARROW-10691:
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Summary: Segfault in
Key: ARROW-10691
URL: https://issues.apache.org/jira/browse/ARROW-10691
Project: Apache Arrow
Issue Type: Bug
Components: Rust
Affects Versions: 2.0.0
Environment: Ubuntu 20.04. rustc-nightly,
Reporter: Ziru Niu
{quote}// src/buffer.rs:657
/// Ensures that this buffer has at least `capacity` slots in this buffer.
This will
/// also ensure the new capacity will be a multiple of 64 bytes.
///
/// Returns the new capacity for this buffer.
pub fn reserve(&mut self, capacity: usize) -> Result<usize> {
if capacity > self.capacity {
let new_capacity = bit_util::round_upto_multiple_of_64(capacity);
let new_capacity = cmp::max(new_capacity, self.capacity * 2);
let new_data =
unsafe \{ memory::reallocate(self.data, self.capacity,
new_capacity) };
self.data = new_data as *mut u8;
self.capacity = new_capacity;
}
Ok(self.capacity)
}{quote}
Above code is not checking if new_data is null, which is causing segfault on
following memcpy when reallocate failed.
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