hds: fix out of bounds access (cid #1224531)

diff --git a/modules/stream_filter/hds/hds.c b/modules/stream_filter/hds/hds.c
index a8e6c89e93612691736b4c29ec3560901b7ee5a3..2c0750afdb73468c91105f0a58ac36749f30a418 100644 (file)
--- a/modules/stream_filter/hds/hds.c
+++ b/modules/stream_filter/hds/hds.c
@@ -618,7 +618,7 @@ static void whitespace_substr( char** start,
         return;
 
     while( is_whitespace(*(*end - 1) ) ) {
-        end--;
+        (*end)--;
     }
 }