thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-26 17:41:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #24922 from Avogar/fix-arrow

Browse Source 
Fix possible heap-buffer-overflow in Arrow
This commit is contained in:
Nikita Mikhaylov 2021-06-03 22:06:38 +03:00 committed by GitHub
commit 3b0757bb52
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/Processors/Formats/Impl/ArrowColumnToCHColumn.cpp
View File

@ -90,8 +90,11 @@ namespace DB
arrow::BinaryArray & chunk = static_cast<arrow::BinaryArray &>(*(arrow_column->chunk(chunk_i)));
const size_t chunk_length = chunk.length();
chars_t_size += chunk.value_offset(chunk_length - 1) + chunk.value_length(chunk_length - 1);
chars_t_size += chunk_length; /// additional space for null bytes
if (chunk_length > 0)
{
chars_t_size += chunk.value_offset(chunk_length - 1) + chunk.value_length(chunk_length - 1);
chars_t_size += chunk_length; /// additional space for null bytes
}
}
column_chars_t.reserve(chars_t_size);