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GLES: Validate shader cache filesize on preload.

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Unknown W. Brackets committed 2017-12-02 09:14:19 -08:00
1 parent 4731a2918c
commit e50ec2c350
1 file changed
+14 -1
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GPU/GLES/ShaderManagerGLES.cpp
+14 -1
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@@ -957,6 +957,7 @@ struct CacheHeader {
void ShaderManagerGLES::LoadAndPrecompile(const std::string &filename) {
File::IOFile f(filename, "rb");
u64 sz = f.GetSize();
if (!f.IsOpen()) {
return;
}
@@ -971,8 +972,20 @@ void ShaderManagerGLES::LoadAndPrecompile(const std::string &filename) {
double start = time_now_d();
// Sanity check the file contents
if (header.numFragmentShaders > 1000 || header.numVertexShaders > 1000 || header.numLinkedPrograms > 1000)
if (header.numFragmentShaders > 1000 || header.numVertexShaders > 1000 || header.numLinkedPrograms > 1000) {
ERROR_LOG(G3D, "Corrupt shader cache file header, aborting.");
return;
}
// Also make sure the size makes sense, in case there's corruption.
u64 expectedSize = sizeof(header);
expectedSize += header.numVertexShaders * sizeof(VShaderID);
expectedSize += header.numFragmentShaders * sizeof(FShaderID);
expectedSize += header.numLinkedPrograms * (sizeof(VShaderID) + sizeof(FShaderID));
if (sz != expectedSize) {
ERROR_LOG(G3D, "Shader cache file is too large, aborting.");
return;
}
for (int i = 0; i < header.numVertexShaders; i++) {
VShaderID id;