jmestwa-coder commented on code in PR #50038:
URL: https://github.com/apache/arrow/pull/50038#discussion_r3418658901
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cpp/src/arrow/ipc/reader.cc:
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@@ -2336,26 +2337,40 @@ Result<std::shared_ptr<SparseIndex>> ReadSparseCSXIndex(
/*allow_short_read=*/false));
std::vector<int64_t> indices_shape({non_zero_length});
Review Comment:
good catch. added a guard rejecting negative non_zero_length up front. the
bare Tensor constructor used here skips CheckTensorValidity, so a negative
shape wasn't being caught downstream.
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