From ce423e919f3e2377bb8d371b59f4d3eac64ff2f7 Mon Sep 17 00:00:00 2001
From: Thomas Arp <357770+welcor@users.noreply.github.com>
Date: Sun, 19 Apr 2026 01:37:10 +0200
Subject: [PATCH] Fix for code scanning alert no. 74: Potential use after free
 (#164)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
---
 .github/workflows/build.yml  | 2 +-
 .github/workflows/codeql.yml | 2 --
 src/dg_triggers.c            | 5 +++--
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 717fe7a..d6a5106 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,7 @@ name: C/C++ CI
 on:
   push:
     branches: [ "master" ]
-  pull_request:
+  pull_request_target:
     branches: [ "master" ]
 
 jobs:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index a53695a..b2f17cd 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -14,8 +14,6 @@ name: "CodeQL Advanced"
 on:
   push:
     branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
   schedule:
     - cron: '42 10 * * 4'
 
diff --git a/src/dg_triggers.c b/src/dg_triggers.c
index 7cea1ad..a569d58 100644
--- a/src/dg_triggers.c
+++ b/src/dg_triggers.c
@@ -147,7 +147,7 @@ void greet_memory_mtrigger(char_data *actor)
 {
   trig_data *t;
   char_data *ch;
-  struct script_memory *mem;
+  struct script_memory *mem, *next_mem;
   char buf[MAX_INPUT_LENGTH];
   int command_performed = 0;
 
@@ -159,7 +159,8 @@ void greet_memory_mtrigger(char_data *actor)
         AFF_FLAGGED(ch, AFF_CHARM))
       continue;
     /* find memory line with command only */
-    for (mem = SCRIPT_MEM(ch); mem && SCRIPT_MEM(ch); mem=mem->next) {
+    for (mem = SCRIPT_MEM(ch); mem && SCRIPT_MEM(ch); mem = next_mem) {
+      next_mem = mem->next;
       if (char_script_id(actor)!=mem->id) continue;
       if (mem->cmd) {
         command_interpreter(ch, mem->cmd); /* no script */