diff --git a/packages/flutter/lib/src/widgets/scroll_context.dart b/packages/flutter/lib/src/widgets/scroll_context.dart
index c83dd11243..19406f0c92 100644
--- a/packages/flutter/lib/src/widgets/scroll_context.dart
+++ b/packages/flutter/lib/src/widgets/scroll_context.dart
@@ -42,6 +42,10 @@ abstract class ScrollContext {
   /// The direction in which the widget scrolls.
   AxisDirection get axisDirection;
 
+  /// The [FlutterView.devicePixelRatio] of the view that the [Scrollable] this
+  /// [ScrollContext] is associated with is drawn into.
+  double get devicePixelRatio;
+
   /// Whether the contents of the widget should ignore [PointerEvent] inputs.
   ///
   /// Setting this value to true prevents the use from interacting with the
diff --git a/packages/flutter/lib/src/widgets/scroll_position.dart b/packages/flutter/lib/src/widgets/scroll_position.dart
index ceedeff737..075b32cfca 100644
--- a/packages/flutter/lib/src/widgets/scroll_position.dart
+++ b/packages/flutter/lib/src/widgets/scroll_position.dart
@@ -12,7 +12,6 @@ import 'package:flutter/scheduler.dart';
 
 import 'basic.dart';
 import 'framework.dart';
-import 'media_query.dart';
 import 'notification_listener.dart';
 import 'page_storage.dart';
 import 'scroll_activity.dart';
@@ -20,7 +19,6 @@ import 'scroll_context.dart';
 import 'scroll_metrics.dart';
 import 'scroll_notification.dart';
 import 'scroll_physics.dart';
-import 'view.dart';
 
 export 'scroll_activity.dart' show ScrollHoldController;
 
@@ -241,7 +239,7 @@ abstract class ScrollPosition extends ViewportOffset with ScrollMetrics {
   }
 
   @override
-  double get devicePixelRatio => MediaQuery.maybeDevicePixelRatioOf(context.storageContext) ?? View.of(context.storageContext).devicePixelRatio;
+  double get devicePixelRatio => context.devicePixelRatio;
 
   /// Update the scroll position ([pixels]) to a given pixel value.
   ///
diff --git a/packages/flutter/lib/src/widgets/scrollable.dart b/packages/flutter/lib/src/widgets/scrollable.dart
index 3b96584198..994071efcc 100644
--- a/packages/flutter/lib/src/widgets/scrollable.dart
+++ b/packages/flutter/lib/src/widgets/scrollable.dart
@@ -28,6 +28,7 @@ import 'scrollable_helpers.dart';
 import 'selectable_region.dart';
 import 'selection_container.dart';
 import 'ticker_provider.dart';
+import 'view.dart';
 import 'viewport.dart';
 
 export 'package:flutter/physics.dart' show Tolerance;
@@ -530,6 +531,10 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
   @override
   TickerProvider get vsync => this;
 
+  @override
+  double get devicePixelRatio => _devicePixelRatio;
+  late double _devicePixelRatio;
+
   @override
   BuildContext? get notificationContext => _gestureDetectorKey.currentContext;
 
@@ -596,6 +601,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
   @override
   void didChangeDependencies() {
     _mediaQueryGestureSettings = MediaQuery.maybeGestureSettingsOf(context);
+    _devicePixelRatio = MediaQuery.maybeDevicePixelRatioOf(context) ?? View.of(context).devicePixelRatio;
     _updatePosition();
     super.didChangeDependencies();
   }
@@ -980,7 +986,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
-    properties.add(DiagnosticsProperty<ScrollPosition>('position', position));
+    properties.add(DiagnosticsProperty<ScrollPosition>('position', _position));
     properties.add(DiagnosticsProperty<ScrollPhysics>('effective physics', _physics));
   }
 }
diff --git a/packages/flutter/test/widgets/nested_scroll_view_test.dart b/packages/flutter/test/widgets/nested_scroll_view_test.dart
index c062cba1fd..c418746510 100644
--- a/packages/flutter/test/widgets/nested_scroll_view_test.dart
+++ b/packages/flutter/test/widgets/nested_scroll_view_test.dart
@@ -2871,6 +2871,43 @@ void main() {
     expect(appBarHeight(tester), expandedAppBarHeight);
     expect(tester.getSize(expandedTitleClip).height, expandedAppBarHeight - collapsedAppBarHeight);
   });
+
+  testWidgets('NestedScrollView does not crash when inner scrollable changes while scrolling', (WidgetTester tester) async {
+    // Regression test for https://github.com/flutter/flutter/issues/126454.
+    Widget buildApp({required bool nested}) {
+      final Widget innerScrollable = ListView(
+        children: const <Widget>[SizedBox(height: 1000)],
+      );
+      return MaterialApp(
+        home: Scaffold(
+          body: NestedScrollView(
+            headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
+              return <Widget>[
+                SliverAppBar(
+                  title: const Text('Books'),
+                  pinned: true,
+                  expandedHeight: 150.0,
+                  forceElevated: innerBoxIsScrolled,
+                ),
+              ];
+            },
+            body: nested ? Container(child: innerScrollable) : innerScrollable,
+          ),
+        ),
+      );
+    }
+
+    await tester.pumpWidget(buildApp(nested: false));
+
+    // Start a scroll.
+    final TestGesture scrollDrag = await tester.startGesture(tester.getCenter(find.byType(ListView)));
+    await tester.pump();
+    await scrollDrag.moveBy(const Offset(0, 50));
+    await tester.pump();
+
+    // Restructuring inner scrollable while scroll is in progress shouldn't crash.
+    await tester.pumpWidget(buildApp(nested: true));
+  });
 }
 
 double appBarHeight(WidgetTester tester) => tester.getSize(find.byType(AppBar, skipOffstage: false)).height;