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Fix possible heap-use-after-free in schema inference

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avogar 2022-04-26 14:36:16 +00:00
parent 8ede5a090f
commit b666b4e1c9
1 changed files with 1 additions and 3 deletions
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4
src/Formats/ReadSchemaUtils.cpp
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@ -54,7 +54,7 @@ ColumnsDescription readSchemaFromFormat(
ReadBufferIterator & read_buffer_iterator,
bool retry,
ContextPtr & context,
std::unique_ptr<ReadBuffer> & buf_out)
std::unique_ptr<ReadBuffer> & buf)
{
NamesAndTypesList names_and_types;
if (FormatFactory::instance().checkIfFormatHasExternalSchemaReader(format_name))
@ -73,7 +73,6 @@ ColumnsDescription readSchemaFromFormat(
{
std::string exception_messages;
SchemaReaderPtr schema_reader;
std::unique_ptr<ReadBuffer> buf;
while ((buf = read_buffer_iterator()))
{
if (buf->eof())
@ -91,7 +90,6 @@ ColumnsDescription readSchemaFromFormat(
{
schema_reader = FormatFactory::instance().getSchemaReader(format_name, *buf, context, format_settings);
names_and_types = schema_reader->readSchema();
buf_out = std::move(buf);
break;
}
catch (...)