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YamlStream.Load throws ArgumentException #374

Metalnem opened this Issue Dec 24, 2018 · 0 comments


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Metalnem commented Dec 24, 2018

YamlStream.Load throws an ArgumentException (YamlException is expected) when loading the document from the attached archive. You can run the following code to reproduce it (the path variable should contain the path to the extracted file):

using (var file = File.OpenText(path))
  new YamlStream().Load(file);

Full stack trace:

An unhandled exception of type 'System.ArgumentException' occurred in System.Private.CoreLib.dll: 'An item with the same key has already been added. Key: '
   at System.ThrowHelper.ThrowAddingDuplicateWithKeyArgumentException[T](T key)
   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
   at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
   at YamlDotNet.RepresentationModel.YamlMappingNode.ResolveAliases(DocumentLoadingState state)
   at YamlDotNet.RepresentationModel.DocumentLoadingState.ResolveAliases()
   at YamlDotNet.RepresentationModel.YamlDocument..ctor(IParser parser)
   at YamlDotNet.RepresentationModel.YamlStream.Load(IParser parser)

Found via SharpFuzz.

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