These messages are explicitly filtered out by the in-kernel name service (ns.c). Filter them out even earlier to save some CPU cycles. Signed-off-by: Denis Kenzior <denkenz@xxxxxxxxx> Reviewed-by: Marcel Holtmann <marcel@xxxxxxxxxxxx> Reviewed-by: Andy Gross <agross@xxxxxxxxxx> --- net/qrtr/af_qrtr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c index b2f9c25ba8f8..95c9679725ee 100644 --- a/net/qrtr/af_qrtr.c +++ b/net/qrtr/af_qrtr.c @@ -560,6 +560,11 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len) if (!size || len != ALIGN(size, 4) + hdrlen) goto err; + /* Don't allow remote lookups */ + if (cb->type == QRTR_TYPE_NEW_LOOKUP || + cb->type == QRTR_TYPE_DEL_LOOKUP) + goto err; + if ((cb->type == QRTR_TYPE_NEW_SERVER || cb->type == QRTR_TYPE_RESUME_TX) && size < sizeof(struct qrtr_ctrl_pkt)) -- 2.45.2
