From 99636bdd5ff56d752f523198902105663499f88b Mon Sep 17 00:00:00 2001
From: "Carsten Haitzler (Rasterman)" <raster@rasterman.com>
Date: Sat, 19 Sep 2020 23:03:20 +0100
Subject: [PATCH] ethumb - check inoput index from stdin

fix CID 1402646
---
 src/bin/ethumb_client/ethumbd_slave.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bin/ethumb_client/ethumbd_slave.c b/src/bin/ethumb_client/ethumbd_slave.c
index d7b7ff6680..984cc9bafa 100644
--- a/src/bin/ethumb_client/ethumbd_slave.c
+++ b/src/bin/ethumb_client/ethumbd_slave.c
@@ -667,6 +667,8 @@ _ec_op_setup(struct _Ethumbd_Child *ec)
    r = _ec_read_safe(stdin, &idx, sizeof(idx));
    if (!r)
      return 0;
+   if ((idx < 0) || (idx >= NETHUMBS))
+     return 0;
 
    r = _ec_read_safe(stdin, &type, sizeof(type));
    if (!r)