MAINT-3827 FIXED crash in KDU texture decoding, likely out of memory

3 files changed, 22 insertions, 3 deletions

diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index 45a3b18179..0dad4285d9 100755
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -116,6 +116,11 @@ void LLCubeMap::initRawData(const std::vector<LLPointer<LLImageRaw> >& rawimages
 		const U8 *sd = rawimages[i]->getData();
 		U8 *td = mRawImages[i]->getData();
 
+		if (!sd || !td)
+		{
+			continue;
+		}
+
 		S32 offset = 0;
 		S32 sx, sy, so;
 		for (int y = 0; y < 64; y++)
diff --git a/indra/llrender/llfontfreetype.cpp b/indra/llrender/llfontfreetype.cpp
index 84c782e958..7ab4e93da5 100755
--- a/indra/llrender/llfontfreetype.cpp
+++ b/indra/llrender/llfontfreetype.cpp
@@ -448,7 +448,11 @@ LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, l
 	
 	LLImageGL *image_gl = mFontBitmapCachep->getImageGL(bitmap_num);
 	LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_num);
-	image_gl->setSubImage(image_raw, 0, 0, image_gl->getWidth(), image_gl->getHeight());
+	
+	if (image_gl)
+	{
+		image_gl->setSubImage(image_raw, 0, 0, image_gl->getWidth(), image_gl->getHeight());
+	}
 
 	return gi;
 }
@@ -560,13 +564,18 @@ void LLFontFreetype::setSubImageLuminanceAlpha(U32 x, U32 y, U32 bitmap_num, U32
 {
 	LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_num);
 
+	if (!image_raw)
+	{
+		return;
+	}
+
 	llassert(!mIsFallback);
-	llassert(image_raw && (image_raw->getComponents() == 2));
+	llassert(image_raw->getComponents() == 2);
 
 	
 	U8 *target = image_raw->getData();
 
-	if (!data)
+	if (!data || !target)
 	{
 		return;
 	}
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index ab875141c5..315cc57e51 100755
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -1251,6 +1251,11 @@ BOOL LLImageGL::createGLTexture(S32 discard_level, const LLImageRaw* imageraw, S
 		return FALSE;
 	}
 
+	if (!imageraw->getData())
+	{
+		return FALSE;
+	}
+
 	mGLTextureCreated = false ;
 	llassert(gGLManager.mInited);
 	stop_glerror();