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nvhost_nvdec_common: Avoid memcpy with null pointers
Avoid sending null pointer to memcpy as reported by Undefined Behavious Sanitizer. Co-authored-by: LC <mathew1800@gmail.com>
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69b2dbdffd
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2cc42e40c5
1 changed files with 11 additions and 6 deletions
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@ -23,18 +23,23 @@ namespace {
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template <typename T>
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template <typename T>
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std::size_t SpliceVectors(const std::vector<u8>& input, std::vector<T>& dst, std::size_t count,
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std::size_t SpliceVectors(const std::vector<u8>& input, std::vector<T>& dst, std::size_t count,
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std::size_t offset) {
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std::size_t offset) {
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if (!dst.empty()) {
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std::memcpy(dst.data(), input.data() + offset, count * sizeof(T));
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std::memcpy(dst.data(), input.data() + offset, count * sizeof(T));
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offset += count * sizeof(T);
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}
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return offset;
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return 0;
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}
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}
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// Write vectors will write data to the output buffer
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// Write vectors will write data to the output buffer
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template <typename T>
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template <typename T>
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std::size_t WriteVectors(std::vector<u8>& dst, const std::vector<T>& src, std::size_t offset) {
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std::size_t WriteVectors(std::vector<u8>& dst, const std::vector<T>& src, std::size_t offset) {
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if (src.empty()) {
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return 0;
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} else {
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std::memcpy(dst.data() + offset, src.data(), src.size() * sizeof(T));
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std::memcpy(dst.data() + offset, src.data(), src.size() * sizeof(T));
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offset += src.size() * sizeof(T);
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offset += src.size() * sizeof(T);
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return offset;
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return offset;
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}
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}
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}
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} // Anonymous namespace
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} // Anonymous namespace
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nvhost_nvdec_common::nvhost_nvdec_common(Core::System& system, std::shared_ptr<nvmap> nvmap_dev,
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nvhost_nvdec_common::nvhost_nvdec_common(Core::System& system, std::shared_ptr<nvmap> nvmap_dev,
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