Size computation for allocation may overflow (#99)

* Size computation for allocation may overflow

Performing calculations involving the size of potentially large strings or slices can result in an overflow (for signed integer types) or a wraparound (for unsigned types). An overflow causes the result of the calculation to become negative, while a wraparound results in a small (positive) number.

test_infrastructure.go

@@ -734,6 +734,7 @@ func (r *TestSuiteRunner) RunMemoryLeakTests(t *testing.T, tests []MemoryLeakTes
 			}
 
 			// Check memory growth
+			// #nosec G115 -- memory stats are within int64 range for practical purposes
 			memoryGrowthBytes := int64(finalMem.Alloc) - int64(initialMem.Alloc)
 			memoryGrowthMB := float64(memoryGrowthBytes) / (1024 * 1024)