diff --git a/src/gfxstream/codegen/scripts/cereal/functable.py b/src/gfxstream/codegen/scripts/cereal/functable.py
index 20906fe279d..a718babede8 100644
--- a/src/gfxstream/codegen/scripts/cereal/functable.py
+++ b/src/gfxstream/codegen/scripts/cereal/functable.py
@@ -392,8 +392,7 @@ class VulkanFuncTable(VulkanWrapperGenerator):
                         cgen.stmt("%s = %s.size()" % (countParamName, nestedOutName))
                     else:
                         # Standard translation
-                        cgen.stmt("%s.reserve(%s)" % (nestedOutName, countParamName))
-                        cgen.stmt("memset(&%s[0], 0, sizeof(%s) * %s)" % (nestedOutName, member.typeName, countParamName))
+                        cgen.stmt("%s.resize(%s)" % (nestedOutName, countParamName))
                         if not nextLoopVar:
                             nextLoopVar = getNextLoopVar()
                         internalArray = genInternalArray(member, countParamName, nestedOutName, inArrayName, nextLoopVar)
diff --git a/src/gfxstream/guest/vulkan/gfxstream_vk_device.cpp b/src/gfxstream/guest/vulkan/gfxstream_vk_device.cpp
index 2ccf87e031d..1aa2b8ab46d 100644
--- a/src/gfxstream/guest/vulkan/gfxstream_vk_device.cpp
+++ b/src/gfxstream/guest/vulkan/gfxstream_vk_device.cpp
@@ -714,7 +714,7 @@ static std::vector<VkWriteDescriptorSet> transformDescriptorSetList(
         outDescriptorSet = srcDescriptorSet;
 
         bufferInfos.push_back(std::vector<VkDescriptorBufferInfo>());
-        bufferInfos[i].reserve(descriptorCount);
+        bufferInfos[i].resize(descriptorCount);
         memset(&bufferInfos[i][0], 0, sizeof(VkDescriptorBufferInfo) * descriptorCount);
         for (uint32_t j = 0; j < descriptorCount; ++j) {
             const auto* srcBufferInfo = srcDescriptorSet.pBufferInfo;