[jira] [Closed] (ARROW-10691) Segfault in

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

     [ https://issues.apache.org/jira/browse/ARROW-10691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ziru Niu closed ARROW-10691.
----------------------------
    Resolution: Duplicate

> 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
>            Priority: Blocker
>
> {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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