GH-36913: [C++] Skip empty buffer concatenation to fix UBSan error #36914
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
|
|
Hi @sfc-gh-ebrossard and thank you for your contribution.
Yes and yes. You'll find a "AMD64 Ubuntu 22.04 C++ ASAN UBSAN" CI job below. |
pitrou
reviewed
Jul 27, 2023
pitrou
approved these changes
Jul 27, 2023
github-actions
bot
added
awaiting committer review
Co-authored-by: Antoine Pitrou <pitrou@free.fr>
|
The Windows 2019 build failure is unrelated and appears on other PRs. |
raulcd
pushed a commit
that referenced
this pull request
Jul 28, 2023
…36914) ### Rationale for this change This is a trivial fix for a UBSan error in calls to `ConcatenateBuffers` with an empty buffer that has a null data pointer. ### What changes are included in this PR? Conditional call to `std::memcpy` based on whether the buffer's length is 0. ### Are these changes tested? Test added in buffer_test.cc. ### Are there any user-facing changes? No * Closes: #36913 Lead-authored-by: Elliott Brossard <elliott.brossard@snowflake.com> Co-authored-by: Elliott Brossard <64754120+sfc-gh-ebrossard@users.noreply.github.com> Co-authored-by: Antoine Pitrou <pitrou@free.fr> Signed-off-by: Antoine Pitrou <antoine@python.org>
|
After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit bedc1e7. There were no benchmark performance regressions. 🎉 The full Conbench report has more details. It also includes information about possible false positives for unstable benchmarks that are known to sometimes produce them. |
R-JunmingChen
pushed a commit
to R-JunmingChen/arrow
that referenced
this pull request
Aug 20, 2023
…ror (apache#36914) ### Rationale for this change This is a trivial fix for a UBSan error in calls to `ConcatenateBuffers` with an empty buffer that has a null data pointer. ### What changes are included in this PR? Conditional call to `std::memcpy` based on whether the buffer's length is 0. ### Are these changes tested? Test added in buffer_test.cc. ### Are there any user-facing changes? No * Closes: apache#36913 Lead-authored-by: Elliott Brossard <elliott.brossard@snowflake.com> Co-authored-by: Elliott Brossard <64754120+sfc-gh-ebrossard@users.noreply.github.com> Co-authored-by: Antoine Pitrou <pitrou@free.fr> Signed-off-by: Antoine Pitrou <antoine@python.org>
loicalleyne
pushed a commit
to loicalleyne/arrow
that referenced
this pull request
Nov 13, 2023
…ror (apache#36914) ### Rationale for this change This is a trivial fix for a UBSan error in calls to `ConcatenateBuffers` with an empty buffer that has a null data pointer. ### What changes are included in this PR? Conditional call to `std::memcpy` based on whether the buffer's length is 0. ### Are these changes tested? Test added in buffer_test.cc. ### Are there any user-facing changes? No * Closes: apache#36913 Lead-authored-by: Elliott Brossard <elliott.brossard@snowflake.com> Co-authored-by: Elliott Brossard <64754120+sfc-gh-ebrossard@users.noreply.github.com> Co-authored-by: Antoine Pitrou <pitrou@free.fr> Signed-off-by: Antoine Pitrou <antoine@python.org>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Rationale for this change
This is a trivial fix for a UBSan error in calls to
ConcatenateBufferswith an empty buffer that has a null data pointer.What changes are included in this PR?
Conditional call to
std::memcpybased on whether the buffer's length is 0.Are these changes tested?
Test added in buffer_test.cc.
Are there any user-facing changes?
No