MINOR: [C++][IPC] Validate CSF sparse index buffer counts#50070
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metsw24-max wants to merge 1 commit into
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MINOR: [C++][IPC] Validate CSF sparse index buffer counts#50070metsw24-max wants to merge 1 commit into
metsw24-max wants to merge 1 commit into
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ReadSparseCSFIndex (and GetSparseCSFIndexMetadata) size their vectors from ndim but iterate the unchecked flatbuffer buffer counts, so a CSF sparse tensor message with mismatched counts reads/writes past those vectors. The payload path already guards this via CheckSparseTensorBodyBufferCount; the file/stream path did not.