[jira] [Created] (ARROW-10692) Segfault in

["Ziru Niu (Jira)" <ji...@apache.org>]

Ziru Niu created ARROW-10692:
--------------------------------

             Summary: Segfault in 
                 Key: ARROW-10692
                 URL: https://issues.apache.org/jira/browse/ARROW-10692
             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.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)