From d3d8c3ca1d8adaca6895d3392713837350a4f839 Mon Sep 17 00:00:00 2001
From: Federico Ficarelli <1379149+nazavode@users.noreply.github.com>
Date: Mon, 2 Mar 2026 12:27:05 +0100
Subject: [PATCH] Make sure Create_INChI always deallocates t_group

---
 INCHI-1-SRC/INCHI_BASE/src/ichimake.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/INCHI-1-SRC/INCHI_BASE/src/ichimake.c b/INCHI-1-SRC/INCHI_BASE/src/ichimake.c
index 0826571d..1ee605a1 100644
--- a/INCHI-1-SRC/INCHI_BASE/src/ichimake.c
+++ b/INCHI-1-SRC/INCHI_BASE/src/ichimake.c
@@ -4537,6 +4537,10 @@ int  Create_INChI(CANON_GLOBALS* pCG,
         /* free_t_group_info(t_group_info); */
         if (t_group_info) /* djb-rwth: fixing oss-fuzz issue #42537161/70475 */
         {
+            if (t_group_info->t_group)
+            {
+                inchi_free(t_group_info->t_group);
+            }
             if (t_group_info->nEndpointAtomNumber)
             {
                 inchi_free(t_group_info->nEndpointAtomNumber);