adamreeve commented on code in PR #318:
URL: https://github.com/apache/arrow-dotnet/pull/318#discussion_r3134987430
##########
src/Apache.Arrow.Flight/Internal/RecordBatchReaderImplementation.cs:
##########
@@ -134,8 +135,14 @@ public override async ValueTask<RecordBatch>
ReadNextRecordBatchAsync(Cancellati
switch (message.HeaderType)
{
case MessageHeader.RecordBatch:
+ if (message.BodyLength < 0 || message.BodyLength >
int.MaxValue)
+ {
+ throw new InvalidDataException(
+ $"Cannot read batch. Message body of
{message.BodyLength} bytes is out of range");
+ }
+
var body = _flightDataStream.Current.DataBody.Memory;
- return CreateArrowObjectFromMessage(message,
CreateByteBuffer(body.Slice(0, (int)message.BodyLength)), null);
+ return CreateArrowObjectFromMessage(message,
CreateByteBuffer(body.Slice(0, checked((int)message.BodyLength))), null);
Review Comment:
Nit: The `checked` is redundant due to the check above, although doesn't
really hurt
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