defrag: fix off by one

Ticket: 7067

This off by one could lead to an empty fragment being inserted
in the rb tree, which led to integer underflow

(cherry picked from commit 9203656496c4081260817cce018a0d8fd57869b5)

diff --git a/src/defrag.c b/src/defrag.c
index c5979b285d1b2246f4ba403fb7d708baea974f21..86d6101728d79ba1b13934b18da92d0692fe0194 100644 (file)
--- a/src/defrag.c
+++ b/src/defrag.c
@@ -852,7 +852,7 @@ DefragInsertFrag(ThreadVars *tv, DecodeThreadVars *dtv, DefragTracker *tracker,
         }
     }
 
-    if (ltrim > data_len) {
+    if (ltrim >= data_len) {
         /* Full packet has been trimmed due to the overlap policy. Overlap
          * already set. */
         goto done;