Weston Pace created ARROW-13440:
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Summary: [C++] UBSAN error "applying non-zero offset to null
pointer"
Key: ARROW-13440
URL: https://issues.apache.org/jira/browse/ARROW-13440
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Weston Pace
Clang's ubsan considers a non-zero offset being added to a null pointer to be
undefined behavior. This causes ubsan violations in our test suites if you are
using clang-10 or higher.
This was not detected by CI since CI uses clang-8 and this check was added in
clang-10 [1][2].
[1] [https://reviews.llvm.org/D67122]
[2]
[https://releases.llvm.org/10.0.0/tools/clang/docs/ReleaseNotes.html#undefined-behavior-sanitizer-ubsan]
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