[trafficserver] branch 9.2.x updated: Fix use-after-free issue (#10399)

[zw...@apache.org]

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zwoop pushed a commit to branch 9.2.x
in repository https://gitbox.apache.org/repos/asf/trafficserver.git


The following commit(s) were added to refs/heads/9.2.x by this push:
     new 2f8bd20e22 Fix use-after-free issue (#10399)
2f8bd20e22 is described below

commit 2f8bd20e222eeaa7b72a559f8f95d4b22bc89dd9
Author: Susan Hinrichs <sh...@aviatrix.com>
AuthorDate: Thu Sep 14 11:58:11 2023 -0500

    Fix use-after-free issue (#10399)
    
    (cherry picked from commit 4fc1aac56961e8b76c353c317f58ea1687a5fc3b)
    
     Conflicts:
            proxy/http/HttpSM.cc
---
 proxy/http/HttpSM.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index 6b3ef19a28..ab269fbbdf 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -7346,7 +7346,11 @@ HttpSM::kill_this()
       server_txn->transaction_done();
       server_txn = nullptr;
     }
+
     if (ua_txn) {
+      if (ua_txn->get_server_session() != nullptr) {
+        ua_txn->attach_server_session(nullptr);
+      }
       ua_txn->transaction_done();
     }