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fix: Out-Of-Bounds bug in Unsqueeze #1820

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merged 1 commit into from
Apr 12, 2023
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fix: Out-Of-Bounds bug in Unsqueeze #1820

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10 changes: 8 additions & 2 deletions core/util/trt_util.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -161,8 +161,14 @@ nvinfer1::Dims unpadDims(const nvinfer1::Dims& d) {
}

nvinfer1::Dims unsqueezeDims(const nvinfer1::Dims& d, int pos, int val, bool use_zeros) {
// acceptable range for pos is [0, d.nbDims]
TORCHTRT_ASSERT(pos >= 0 && pos <= d.nbDims, "ERROR: Index to unsqueeze is out of bounds.");
// Acceptable range for pos is [-d.nbDims - 1, d.nbDims]
TORCHTRT_ASSERT(
pos >= (-d.nbDims - 1) && pos <= d.nbDims,
"ERROR: Index to unsqueeze is out of bounds. "
<< "Expected value in range [" << (-d.nbDims - 1) << ", " << d.nbDims << "], but got " << pos);

// Unsqueeze with negative dimensions creates a new dimension at that index
pos = (pos < 0) ? (pos + d.nbDims + 1) : pos;

nvinfer1::Dims dims;
for (int i = 0, j = 0; j <= d.nbDims; j++) {
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