// -- Check for messages
case SYS_GETMSG:
CHECK_NUM_NULLOK(Regs->Arg1, sizeof(Uint));
- //NOTE: Uncertain due to length being unknown
- // (Proc_GetMessage should check itself)
- CHECK_NUM_NULLOK(Regs->Arg2, sizeof(Uint)*4);
+ if( Regs->Arg2 && Regs->Arg2 != -1 && !MM_IsUser(Regs->Arg2) )
+ {
+ err = -EINVAL; ret = -1; break;
+ }
// *Source, *Data
ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
break;