Yibo Cai created ARROW-8728:
-------------------------------
Summary: [C++] Bitmap operation may cause buffer overflow
Key: ARROW-8728
URL: https://issues.apache.org/jira/browse/ARROW-8728
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Yibo Cai
Assignee: Yibo Cai
Happen to find this issue when refining bitmap operation, [this
code|https://github.com/apache/arrow/blob/9b75a60658327c39383bee48fa6e5827faf2ced3/cpp/src/arrow/util/bit_util.cc#L267]
may overflow out buffer. Should be "(length + left_offset % 8)";
Improve unit test to test large offset values can trigger the bug.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
