[trafficserver] branch master updated: Add null check to fix error tunnel crash

[shinrich]

This is an automated email from the ASF dual-hosted git repository.

shinrich pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/trafficserver.git


The following commit(s) were added to refs/heads/master by this push:
     new 6b634b2  Add null check to fix error tunnel crash
6b634b2 is described below

commit 6b634b2c5af6467a9db0aa6f536b19c70a80ccae
Author: Susan Hinrichs <shinr...@verizonmedia.com>
AuthorDate: Mon Mar 9 13:52:03 2020 +0000

    Add null check to fix error tunnel crash
---
 proxy/http/HttpTunnel.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxy/http/HttpTunnel.cc b/proxy/http/HttpTunnel.cc
index 56c1a38..4e69d2a 100644
--- a/proxy/http/HttpTunnel.cc
+++ b/proxy/http/HttpTunnel.cc
@@ -1473,7 +1473,7 @@ HttpTunnel::finish_all_internal(HttpTunnelProducer *p, 
bool chain)
 
   if (action == TCA_PASSTHRU_CHUNKED_CONTENT) {
     // if the only chunked data was in the initial read, make sure we don't 
consume too much
-    if (p->bytes_read == 0) {
+    if (p->bytes_read == 0 && p->buffer_start != nullptr) {
       int num_read = p->buffer_start->read_avail() - 
p->chunked_handler.chunked_reader->read_avail();
       if (num_read < p->init_bytes_done) {
         p->init_bytes_done = num_read;