Program: 22012
Project: 22012
Buggy source:
private final String checkContentProviderPermissionLocked(ProviderInfo cpi,ProcessRecord r,int mode){
  final int callingPid=(r != null) ? r.pid : Binder.getCallingPid();
  final int callingUid=(r != null) ? r.info.uid : Binder.getCallingUid();
  if (checkComponentPermission(cpi.readPermission,callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED && mode == ParcelFileDescriptor.MODE_READ_ONLY || mode == -1) {
    return null;
  }
  if (checkComponentPermission(cpi.writePermission,callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
    return null;
  }
  PathPermission[] pps=cpi.pathPermissions;
  if (pps != null) {
    int i=pps.length;
    while (i > 0) {
      i--;
      PathPermission pp=pps[i];
      if (checkComponentPermission(pp.getReadPermission(),callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED && mode == ParcelFileDescriptor.MODE_READ_ONLY || mode == -1) {
        return null;
      }
      if (checkComponentPermission(pp.getWritePermission(),callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
        return null;
      }
    }
  }
  String msg="String_Node_Str" + cpi.name + "String_Node_Str"+ (r != null ? r : "String_Node_Str")+ "String_Node_Str"+ callingPid+ "String_Node_Str"+ callingUid+ "String_Node_Str"+ cpi.readPermission+ "String_Node_Str"+ cpi.writePermission;
  Slog.w(TAG,msg);
  return msg;
}

Fixed version (ground truth):
private final String checkContentProviderPermissionLocked(ProviderInfo cpi,ProcessRecord r){
  final int callingPid=(r != null) ? r.pid : Binder.getCallingPid();
  final int callingUid=(r != null) ? r.info.uid : Binder.getCallingUid();
  if (checkComponentPermission(cpi.readPermission,callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
    return null;
  }
  if (checkComponentPermission(cpi.writePermission,callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
    return null;
  }
  PathPermission[] pps=cpi.pathPermissions;
  if (pps != null) {
    int i=pps.length;
    while (i > 0) {
      i--;
      PathPermission pp=pps[i];
      if (checkComponentPermission(pp.getReadPermission(),callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
        return null;
      }
      if (checkComponentPermission(pp.getWritePermission(),callingPid,callingUid,cpi.exported ? -1 : cpi.applicationInfo.uid) == PackageManager.PERMISSION_GRANTED) {
        return null;
      }
    }
  }
  HashMap<Uri,UriPermission> perms=mGrantedUriPermissions.get(callingUid);
  if (perms != null) {
    for (    Map.Entry<Uri,UriPermission> uri : perms.entrySet()) {
      if (uri.getKey().getAuthority().equals(cpi.authority)) {
        return null;
      }
    }
  }
  String msg="String_Node_Str" + cpi.name + "String_Node_Str"+ (r != null ? r : "String_Node_Str")+ "String_Node_Str"+ callingPid+ "String_Node_Str"+ callingUid+ "String_Node_Str"+ cpi.readPermission+ "String_Node_Str"+ cpi.writePermission;
  Slog.w(TAG,msg);
  return msg;
}