diff --git a/Source/Core/VideoBackends/Software/Src/EfbInterface.cpp b/Source/Core/VideoBackends/Software/Src/EfbInterface.cpp
index e3b3481b8a..8fdcb5fa04 100644
--- a/Source/Core/VideoBackends/Software/Src/EfbInterface.cpp
+++ b/Source/Core/VideoBackends/Software/Src/EfbInterface.cpp
@@ -551,6 +551,11 @@ namespace EfbInterface
 
 	// Like CopyToXFB, but we copy directly into the opengl colour texture without going via Gamecube main memory or doing a yuyv conversion
 	void BypassXFB(u8* texture, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma) {
+		if(fbWidth*fbHeight > 640*568) {
+			ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
+			return;
+		}
+
 		u32 color;
 		u8* colorPtr = (u8*)&color;
 		u32* texturePtr = (u32*)texture;
diff --git a/Source/Core/VideoBackends/Software/Src/SWRenderer.cpp b/Source/Core/VideoBackends/Software/Src/SWRenderer.cpp
index 83d542bcec..62d2970160 100644
--- a/Source/Core/VideoBackends/Software/Src/SWRenderer.cpp
+++ b/Source/Core/VideoBackends/Software/Src/SWRenderer.cpp
@@ -20,7 +20,7 @@ static GLint attr_pos = -1, attr_tex = -1;
 static GLint uni_tex = -1;
 static GLuint program;
 
-static u8 s_xfbColorTexture[2][EFB_WIDTH*EFB_HEIGHT*4];
+static u8 s_xfbColorTexture[2][640*568*4];
 static int s_currentColorTexture = 0;
 
 static volatile bool s_bScreenshot;
@@ -154,6 +154,11 @@ void SWRenderer::swapColorTexture() {
 
 void SWRenderer::UpdateColorTexture(EfbInterface::yuv422_packed *xfb, u32 fbWidth, u32 fbHeight)
 {
+	if(fbWidth*fbHeight > 640*568) {
+		ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
+		return;
+	}
+
 	u32 offset = 0;
 	u8 *TexturePointer = getColorTexture();