2 files changed, 3 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_buffer_cache.cpp b/src/video_core/renderer_opengl/gl_buffer_cache.cpp
index 48b86f3bd..2b9bd142e 100644
--- a/src/video_core/renderer_opengl/gl_buffer_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_buffer_cache.cpp
@@ -23,6 +23,7 @@ OGLBufferCache::OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size)
 
 GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment,
                                       bool cache) {
+    std::lock_guard lock{mutex};
     auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
 
     // Cache management is a big overhead, so only cache entries with a given size.
@@ -62,6 +63,7 @@ GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::
 
 GLintptr OGLBufferCache::UploadHostMemory(const void* raw_pointer, std::size_t size,
                                           std::size_t alignment) {
+    std::lock_guard lock{mutex};
     AlignBuffer(alignment);
     std::memcpy(buffer_ptr, raw_pointer, size);
     const GLintptr uploaded_offset = buffer_offset;
diff --git a/src/video_core/renderer_opengl/gl_global_cache.cpp b/src/video_core/renderer_opengl/gl_global_cache.cpp
index ea4a593af..d5e385151 100644
--- a/src/video_core/renderer_opengl/gl_global_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_global_cache.cpp
@@ -76,6 +76,7 @@ GlobalRegionCacheOpenGL::GlobalRegionCacheOpenGL(RasterizerOpenGL& rasterizer)
 GlobalRegion GlobalRegionCacheOpenGL::GetGlobalRegion(
     const GLShader::GlobalMemoryEntry& global_region,
     Tegra::Engines::Maxwell3D::Regs::ShaderStage stage) {
+    std::lock_guard lock{mutex};
 
     auto& gpu{Core::System::GetInstance().GPU()};
     auto& memory_manager{gpu.MemoryManager()};