Help! Calling hooked function with string arg crashes game

[fshn06]

Game: Growtopia
Native c++ game , armeabi-v7a

I am hooking the SendPacket symbol, everything is fine until I call SendPacket

SendPacket(int type, std::string& text, ENetPeer* peer)

void oSendPacket(int, std::string&, ENetPeer*);
void hkSendPacket(int type, std::string& text, ENetPeer* peer) {
    oSendPacket(type, text, peer);
}

std::string packet = "action|log\nmsg|test";
oSendPacket(3, packet, GetPeer());

All other hooks without string param have no issues

Crash Report

 

[mIsmanXP]

Are you sure that SendPacket accept std::string?

 

[fshn06]

Are you sure that SendPacket accept std::string?

Yes, heres symbol from radare2

[0x005f4e50]> iE~SendPacket


5863  0x007ae948 0x007ae948 GLOBAL FUNC   108         _Z10SendPacket15eNetMessageTypeRKSsP9_ENetPeer                                                                                                                                                                                                               SendPacket(eNetMessageType, std::string const&, _ENetPeer*)

 

[fshn06]

bump

 

[mIsmanXP]

Try changing the function signature
SendPacket(int type, std::string* text, ENetPeer* peer)

And then you call it like
std::string packet = "action|log\nmsg|test"; oSendPacket(3, &packet, GetPeer());

 

[fshn06]

Try changing the function signature
SendPacket(int type, std::string* text, ENetPeer* peer)

And then you call it like
std::string packet = "action|log\nmsg|test"; oSendPacket(3, &packet, GetPeer());

tried and it still has this same crash

null pointer dereference