Core/Quest: Fix crash in GetQuestDialogStatus()

Fix possible NULL dereference in GetQuestDialogStatus()
Fixes #22516

1 files changed, 6 insertions, 4 deletions

diff --git a/src/server/game/Entities/Player/Player.cpp b/src/server/game/Entities/Player/Player.cpp
index 16584677921..6b6ccd358da 100644
--- a/src/server/game/Entities/Player/Player.cpp
+++ b/src/server/game/Entities/Player/Player.cpp
@@ -15925,16 +15925,18 @@ QuestGiverStatus Player::GetQuestDialogStatus(Object* questgiver)
     {
         case TYPEID_GAMEOBJECT:
         {
-            if (auto questStatus = questgiver->ToGameObject()->AI()->GetDialogStatus(this))
-                return *questStatus;
+            if (auto ai = questgiver->ToGameObject()->AI())
+                if (auto questStatus = ai->GetDialogStatus(this))
+                    return *questStatus;
             qr = sObjectMgr->GetGOQuestRelationBounds(questgiver->GetEntry());
             qir = sObjectMgr->GetGOQuestInvolvedRelationBounds(questgiver->GetEntry());
             break;
         }
         case TYPEID_UNIT:
         {
-            if (auto questStatus = questgiver->ToCreature()->AI()->GetDialogStatus(this))
-                return *questStatus;
+            if (auto ai = questgiver->ToCreature()->AI())
+                if (auto questStatus = ai->GetDialogStatus(this))
+                    return *questStatus;
             qr = sObjectMgr->GetCreatureQuestRelationBounds(questgiver->GetEntry());
             qir = sObjectMgr->GetCreatureQuestInvolvedRelationBounds(questgiver->GetEntry());
             break;