From: Florin Coras <fcoras@cisco.com>
Date: Tue, 10 Jan 2023 00:00:10 +0000 (-0800)
Subject: session: avoid trying to send incomplete dgram
X-Git-Tag: v23.06-rc0~41
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=c21775bd5c64ae99556761df01b7a06690de3df9;p=vpp.git

session: avoid trying to send incomplete dgram

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Ibebe9e4ab7331c3ae66c9502e910368acaba51ec
---

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index f819ee6847d..fd57f08aed7 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -1253,8 +1253,9 @@ session_tx_set_dequeue_params (vlib_main_t * vm, session_tx_context_t * ctx,
 				 (u8 *) & hdr);
 		  ASSERT (hdr.data_length > hdr.data_offset);
 		  dgram_len = hdr.data_length - hdr.data_offset;
-		  if (len + dgram_len > ctx->max_dequeue
-		      || first_dgram_len != dgram_len)
+		  if (offset + sizeof (hdr) + hdr.data_length >
+			ctx->max_dequeue ||
+		      first_dgram_len != dgram_len)
 		    break;
 		  len += dgram_len;
 		  offset += sizeof (hdr) + hdr.data_length;