diff --git a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
index 3f2195d7..8f438020 100644
--- a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
+++ b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
@@ -429,8 +429,10 @@ void GraphicsPipeline::BindVertexBuffers(StreamBuffer& staging) const {
     for (u32 i = 0; i < num_buffers; ++i) {
         const auto& buffer = guest_buffers[i];
         const auto& host_buffer = std::ranges::find_if(
-            ranges_merged.cbegin(), ranges_merged.cend(),
-            [&](const BufferRange& range) { return (buffer.base_address >= range.base_address); });
+            ranges_merged.cbegin(), ranges_merged.cend(), [&](const BufferRange& range) {
+                return (buffer.base_address >= range.base_address &&
+                        buffer.base_address < range.end_address);
+            });
         assert(host_buffer != ranges_merged.cend());
 
         host_buffers[i] = staging.Handle();
diff --git a/src/video_core/renderer_vulkan/vk_stream_buffer.cpp b/src/video_core/renderer_vulkan/vk_stream_buffer.cpp
index 86a03a03..116f7896 100644
--- a/src/video_core/renderer_vulkan/vk_stream_buffer.cpp
+++ b/src/video_core/renderer_vulkan/vk_stream_buffer.cpp
@@ -232,8 +232,7 @@ void StreamBuffer::WaitPendingOperations(u64 requested_upper_bound) {
 }
 
 u64 StreamBuffer::Copy(VAddr src, size_t size, size_t alignment /*= 0*/) {
-    static const u64 MinUniformAlignment = instance.UniformMinAlignment();
-    const auto [data, offset, _] = Map(size, MinUniformAlignment);
+    const auto [data, offset, _] = Map(size, alignment);
     std::memcpy(data, reinterpret_cast<const void*>(src), size);
     Commit(size);
     return offset;