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Posted to issues@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2022/02/08 17:47:00 UTC
[jira] [Created] (ARROW-15615) [C++] STL allocator doesn't check for multiplication overflow
Antoine Pitrou created ARROW-15615:
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Summary: [C++] STL allocator doesn't check for multiplication overflow
Key: ARROW-15615
URL: https://issues.apache.org/jira/browse/ARROW-15615
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Antoine Pitrou
The MemoryPool-backed STL allocator defined in {{arrow/stl.h}} has the following code:
{code:c++}
Status s = pool_->Allocate(n * sizeof(T), &data);
{code}
but {{n * sizeof(T)}} might silently overflow and lead to an incorrect allocation size.
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