Philip Sanetra created AVRO-3225:
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Summary: Stack overflow exception on invalid input for
BinaryDecoder.ReadString on NetStandard 2.1+
Key: AVRO-3225
URL: https://issues.apache.org/jira/browse/AVRO-3225
Project: Apache Avro
Issue Type: Bug
Components: csharp
Reporter: Philip Sanetra
The BinaryDecoder.ReadString() method on NetStandard2.1+ produces a stack
overflow exception if there is invalid input caused by this code:
{code:java}
int length = ReadInt();
Span<byte> buffer = length <= StackallocThreshold ? stackalloc byte[length] :
(bufferArray = ArrayPool<byte>.Shared.Rent(length)).AsSpan(0,
length);
{code}
This code fails if ReadInt() returns a negative value.
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