From 6e625c574d5a1e4ed239d03cc498bb77677951cb Mon Sep 17 00:00:00 2001
From: jasio <wbcyclist@gmail.com>
Date: Wed, 29 Nov 2023 17:03:12 +0800
Subject: [PATCH] fix: Crash when UINavigationController without
 rootViewController (#3455)

When a UINavigationController is not initialized with initWithRootViewController, it leads to a crash

Co-authored-by: Dhiogo Brustolin <dhiogorb@gmail.com>
---
 CHANGELOG.md                         | 7 +++++++
 Sources/Sentry/SentryUIApplication.m | 5 ++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec371f7d6f2..ff6cfab1e44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## Unreleased
+
+
+### Fixes 
+
+- Crash when UINavigationController doesn't have rootViewController (#3455)
+
 ## 8.17.0
 
 ### Features
diff --git a/Sources/Sentry/SentryUIApplication.m b/Sources/Sentry/SentryUIApplication.m
index 92dd459185a..7c330efc23d 100644
--- a/Sources/Sentry/SentryUIApplication.m
+++ b/Sources/Sentry/SentryUIApplication.m
@@ -204,7 +204,10 @@ - (BOOL)isContainerViewController:(UIViewController *)viewController
     (UIViewController *)containerVC
 {
     if ([containerVC isKindOfClass:UINavigationController.class]) {
-        return @[ [(UINavigationController *)containerVC topViewController] ];
+        if ([(UINavigationController *)containerVC topViewController]) {
+            return @[ [(UINavigationController *)containerVC topViewController] ];
+        }
+        return nil;
     }
     if ([containerVC isKindOfClass:UITabBarController.class]) {
         UITabBarController *tbController = (UITabBarController *)containerVC;