From: jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Sun, 11 Mar 2007 16:32:34 +0000 (+0000)
Subject: Fixed state machine hangup with invalid payload_len field.
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=1cdeff14aa038f53336f871f588e6b6a2d67a82d;p=debian%2Fgnuradio

Fixed state machine hangup with invalid payload_len field.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4737 221aa14e-8319-0410-a670-987f0aec2ac5
---

diff --git a/gnuradio-core/src/lib/general/gr_framer_sink_1.cc b/gnuradio-core/src/lib/general/gr_framer_sink_1.cc
index 1d939adb..be5209a7 100644
--- a/gnuradio-core/src/lib/general/gr_framer_sink_1.cc
+++ b/gnuradio-core/src/lib/general/gr_framer_sink_1.cc
@@ -57,6 +57,11 @@ gr_framer_sink_1::enter_have_header(int payload_len, int whitener_offset)
   if (VERBOSE)
     fprintf(stderr, "@ enter_have_header (payload_len = %d) (offset = %d)\n", payload_len, whitener_offset);
 
+  if (payload_len < 4) {	// should be at least the length of the CRC field
+    enter_search();
+    return;
+  }
+
   d_state = STATE_HAVE_HEADER;
   d_packetlen = payload_len;
   d_packet_whitener_offset = whitener_offset;