Memory safety fixes

Common/VR/PPSSPPVR.cpp

@@ -319,7 +319,7 @@ void UpdateVRInput(bool haptics, float dp_xscale, float dp_yscale) {
 		VR_SetConfig(VR_CONFIG_CANVAS_6DOF, g_Config.bEnable6DoF);
 
 		//inform engine about the status
-		TouchInput touch;
+		TouchInput touch{};
 		touch.id = mouseController;
 		touch.x = x * dp_xscale;
 		touch.y = (height - y - 1) * dp_yscale;

Core/FileSystems/BlockDevices.cpp

@@ -530,7 +530,7 @@ bool NPDRMDemoBlockDevice::ReadBlock(int blockNumber, u8 *outPtr, bool uncached)
 
 	if (table_[block].size < blockSize_) {
 		int lzsize = lzrc_decompress(blockBuf_, 0x00100000, readBuf, table_[block].size);
-		if(lzsize!=blockSize_){
+		if(lzsize != blockSize_){
 			ERROR_LOG(Log::Loader, "LZRC decompress error! lzsize=%d\n", lzsize);
 			NotifyReadError();
 			return false;

Core/FileSystems/tlzrc.cpp

@@ -215,14 +215,17 @@ int lzrc_decompress(void *out, int out_len, void *in, int in_len)
 
 	if(rc.lc&0x80){
 		/* plain text */
-		memcpy(rc.output, rc.input+5, rc.code);
-		return rc.code; 
+		int copySize = rc.code;
+		if (copySize > out_len) {
+			copySize = out_len;
+		}
+		memcpy(rc.output, rc.input+5, copySize);
+		return copySize;
 	}
 
 	rc_state = 0;
 	last_byte = 0;
 
-
 	while (1) {
 		round += 1;
 		match_step = 0;