diff --git a/renderdoc/core/gpu_address_range_tracker.cpp b/renderdoc/core/gpu_address_range_tracker.cpp
index 4a2c057be..92864c9f0 100644
--- a/renderdoc/core/gpu_address_range_tracker.cpp
+++ b/renderdoc/core/gpu_address_range_tracker.cpp
@@ -29,6 +29,8 @@
 
 void GPUAddressRangeTracker::AddTo(const GPUAddressRange &range)
 {
+  RDCASSERT(range.oobEnd >= range.realEnd);
+
   SCOPED_WRITELOCK(addressLock);
 
   // insert ranges ordered by start first, then by size. Ranges with different sizes starting at the
diff --git a/renderdoc/driver/vulkan/wrappers/vk_resource_funcs.cpp b/renderdoc/driver/vulkan/wrappers/vk_resource_funcs.cpp
index 38774dec7..38e40a400 100644
--- a/renderdoc/driver/vulkan/wrappers/vk_resource_funcs.cpp
+++ b/renderdoc/driver/vulkan/wrappers/vk_resource_funcs.cpp
@@ -743,7 +743,7 @@ VkResult WrappedVulkan::vkAllocateMemory(VkDevice device, const VkMemoryAllocate
 
       record->AddChunk(chunk);
 
-      record->Length = memSize;
+      record->memSize = record->Length = memSize;
 
       uint32_t memProps =
           m_PhysicalDeviceData.memProps.memoryTypes[info.memoryTypeIndex].propertyFlags;