IVGCVSW-6610 No bounds checking performed when indexing PermutationVector elements.
* Added out of bounds index error checking to PermutationVector operator[] method
in Types.hpp.
* Added armnn unit tests to UnitsTests.cpp to check error when using
PermutationVector alone and with TransposeDescriptor and PermuteDescriptor.
* Added pyarmnn unit test to check error when using PermutationVector.
Signed-off-by: Cathal Corbett <cathal.corbett@arm.com>
Change-Id: Ie5a8090f07b571a6bdf79a8cad621c31cc1891b7
diff --git a/include/armnn/Types.hpp b/include/armnn/Types.hpp
index b5a4266..880a6dd 100644
--- a/include/armnn/Types.hpp
+++ b/include/armnn/Types.hpp
@@ -306,7 +306,21 @@
PermutationVector(std::initializer_list<ValueType> dimMappings);
- ValueType operator[](SizeType i) const { return m_DimMappings.at(i); }
+ ///
+ /// Indexing method with out-of-bounds error checking for the m_DimMappings array.
+ /// @param i - integer value corresponding to index of m_DimMappings array to retrieve element from.
+ /// @return element at index i of m_DimMappings array.
+ /// @throws InvalidArgumentException when indexing out-of-bounds index of m_DimMappings array.
+ ///
+ ValueType operator[](SizeType i) const
+ {
+ if (i >= GetSize())
+ {
+ throw InvalidArgumentException("Invalid indexing of PermutationVector of size " + std::to_string(GetSize())
+ + " at location [" + std::to_string(i) + "].");
+ }
+ return m_DimMappings.at(i);
+ }
SizeType GetSize() const { return m_NumDimMappings; }
diff --git a/python/pyarmnn/test/test_types.py b/python/pyarmnn/test/test_types.py
index dfe1429..500a779 100644
--- a/python/pyarmnn/test/test_types.py
+++ b/python/pyarmnn/test/test_types.py
@@ -27,3 +27,8 @@
pv4 = ann.PermutationVector((0, 3, 1, 2))
assert pv.IsInverse(pv4)
+
+ with pytest.raises(ValueError) as err:
+ pv4[4]
+
+ assert err.type is ValueError
diff --git a/src/armnn/test/UtilsTests.cpp b/src/armnn/test/UtilsTests.cpp
index 1599d0c..6388437 100644
--- a/src/armnn/test/UtilsTests.cpp
+++ b/src/armnn/test/UtilsTests.cpp
@@ -269,6 +269,28 @@
CHECK(permuted.GetQuantizationDim().value() == 3U);
}
+TEST_CASE("EmptyPermuteVectorIndexOutOfBounds")
+{
+ armnn::PermutationVector pv = armnn::PermutationVector({});
+ CHECK_THROWS_AS(pv[0], armnn::InvalidArgumentException);
+}
+
+TEST_CASE("PermuteDescriptorIndexOutOfBounds")
+{
+ armnn::PermutationVector pv = armnn::PermutationVector({ 1u, 2u, 0u });
+ armnn::PermuteDescriptor desc = armnn::PermuteDescriptor(pv);
+ CHECK_THROWS_AS(desc.m_DimMappings[3], armnn::InvalidArgumentException);
+ CHECK(desc.m_DimMappings[0] == 1u);
+}
+
+TEST_CASE("TransposeDescriptorIndexOutOfBounds")
+{
+ armnn::PermutationVector pv = armnn::PermutationVector({ 2u, 1u, 0u });
+ armnn::TransposeDescriptor desc = armnn::TransposeDescriptor(pv);
+ CHECK_THROWS_AS(desc.m_DimMappings[3], armnn::InvalidArgumentException);
+ CHECK(desc.m_DimMappings[2] == 0u);
+}
+
TEST_CASE("PermuteVectorIterator")
{
// We're slightly breaking the spirit of std::array.end() because we're using it as a