diff --git a/patches/v8/.patches b/patches/v8/.patches
index 280a34b936037..dd5b93a8df77d 100644
--- a/patches/v8/.patches
+++ b/patches/v8/.patches
@@ -1,2 +1,3 @@
 chore_allow_customizing_microtask_policy_per_context.patch
 deps_add_v8_object_setinternalfieldfornodecore.patch
+cherry-pick-f320600cd1f4.patch
diff --git a/patches/v8/cherry-pick-f320600cd1f4.patch b/patches/v8/cherry-pick-f320600cd1f4.patch
new file mode 100644
index 0000000000000..1a92bfcbdd65c
--- /dev/null
+++ b/patches/v8/cherry-pick-f320600cd1f4.patch
@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shu-yu Guo <syg@chromium.org>
+Date: Thu, 9 May 2024 12:03:28 -0700
+Subject: Only normalize JSObject targets in SetOrCopyDataProperties
+
+Bug: 339458194
+Change-Id: I4d6eebdd921971fa28d7c474535d978900ba633f
+Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5527397
+Reviewed-by: Rezvan Mahdavi Hezaveh <rezvan@chromium.org>
+Commit-Queue: Shu-yu Guo <syg@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#93811}
+
+diff --git a/src/objects/js-objects.cc b/src/objects/js-objects.cc
+index 6c99451fab8bf7d5b08735dd9a4863b5978596d3..fa13ac023ebd7ea7cbb52b9e6924af1b21146676 100644
+--- a/src/objects/js-objects.cc
++++ b/src/objects/js-objects.cc
+@@ -434,9 +434,7 @@ Maybe<bool> JSReceiver::SetOrCopyDataProperties(
+       Nothing<bool>());
+ 
+   if (!from->HasFastProperties() && target->HasFastProperties() &&
+-      !IsJSGlobalProxy(*target)) {
+-    // JSProxy is always in slow-mode.
+-    DCHECK(!IsJSProxy(*target));
++      IsJSObject(*target) && !IsJSGlobalProxy(*target)) {
+     // Convert to slow properties if we're guaranteed to overflow the number of
+     // descriptors.
+     int source_length;