Fixed some crashes (1.4.12b4)

MusicBot/src/MusicPlayer.cpp

@@ -78,11 +78,16 @@ void manager::loadProviders(const std::string& path) {
     }
 
     deque<fs::path> paths;
-    for(const auto& entry : fs::directory_iterator(dir)){
+    error_code error_code{};
+    for(const auto& entry : fs::directory_iterator(dir, error_code)){
         if(!entry.path().has_extension()) continue;
         if(entry.path().extension().string() == ".so")
             paths.push_back(entry.path());
     }
+    if(error_code) {
+        log::log(log::err, "Failed to scan the target directory (" + dir.string() + "): " + error_code.message());
+        return;
+    }
     std::sort(paths.begin(), paths.end(), [](const fs::path& a, const fs::path& b){ return a.filename().string() < b.filename().string(); });
 
     int index = 0;

server/environment/resources

@@ -1 +0,0 @@
-../repro/env/resources/

server/src/client/voice/VoiceClientConnection.cpp

@@ -369,6 +369,13 @@ bool VoiceClientConnection::next_reassembled_command(unique_lock<std::recursive_
         std::string error{};
 
         auto decompressed_size = compression::qlz_decompressed_size(payload.data_ptr(), payload.length());
+        if(decompressed_size == 0) {
+            logTrace(this->client->getServerId(), "{} Failed to calculate decompressed size for received command. Dropping packet.", CLIENT_STR_LOG_PREFIX_(this->client));
+            return false;
+        } else if(decompressed_size > 20 * 1024 * 1024) { /* max 20MB */
+            logTrace(this->client->getServerId(), "{} Command packet has a too large compressed size. Dropping packet.", CLIENT_STR_LOG_PREFIX_(this->client));
+            return false;
+        }
         auto buffer = buffer::allocate_buffer(decompressed_size);
         if(!compression::qlz_decompress_payload(payload.data_ptr(), buffer.data_ptr(), &decompressed_size)) {
             logTrace(this->client->getServerId(), "{} Failed to decompress received command. Dropping packet.", CLIENT_STR_LOG_PREFIX_(this->client));