jorgecarleitao opened a new pull request #9425:
URL: https://github.com/apache/arrow/pull/9425


   This PR fixes a bug on which `GenericListArray` is not validating the 
datatype passed on to `from(ArrayData)`, causing all types of bugs, such as 
undefined behavior in interpreting the offset buffer.
   
   This PR adds this validation, panicking if the DataType does not match.l
   
   This PR also fixes casting from and to Lists, which was creating an 
`ArrayData` out of spec.
   


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