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-rw-r--r--src/vnet/session/application_interface.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h
index b410c638155..d09432d0b52 100644
--- a/src/vnet/session/application_interface.h
+++ b/src/vnet/session/application_interface.h
@@ -694,8 +694,13 @@ app_recv_dgram_raw (svm_fifo_t * f, u8 * buf, u32 len,
svm_fifo_peek (f, 0, sizeof (ph), (u8 *) & ph);
ASSERT (ph.data_length >= ph.data_offset);
- svm_fifo_peek (f, sizeof (ph), sizeof (*at), (u8 *) at);
+ /* Check if we have the full dgram */
+ if (max_deq < (ph.data_length + SESSION_CONN_HDR_LEN)
+ && len >= ph.data_length)
+ return 0;
+
+ svm_fifo_peek (f, sizeof (ph), sizeof (*at), (u8 *) at);
len = clib_min (len, ph.data_length - ph.data_offset);
rv = svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN, len, buf);
if (peek)