From 0e6ee925f0e3b47ff3c2208d6bd1e9da9a460efd Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Wed, 16 Jul 2025 07:05:08 -0400
Subject: [PATCH] Meta+LibJS: Update simdutf to version 7.3.3

This contains a fix for handling invalid trailing padding characters.
---
 .../builtins/TypedArray/Uint8Array.fromBase64.js | 16 ++++++++++++++++
 vcpkg.json                                       |  2 +-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/Libraries/LibJS/Tests/builtins/TypedArray/Uint8Array.fromBase64.js b/Libraries/LibJS/Tests/builtins/TypedArray/Uint8Array.fromBase64.js
index ee9085b5607..febfa86527d 100644
--- a/Libraries/LibJS/Tests/builtins/TypedArray/Uint8Array.fromBase64.js
+++ b/Libraries/LibJS/Tests/builtins/TypedArray/Uint8Array.fromBase64.js
@@ -49,6 +49,22 @@ describe("errors", () => {
         expect(() => {
             Uint8Array.fromBase64("Zm9vaa=a", { lastChunkHandling: "strict" });
         }).toThrowWithMessage(SyntaxError, "Invalid base64 character");
+
+        expect(() => {
+            Uint8Array.fromBase64("A==");
+        }).toThrowWithMessage(SyntaxError, "Invalid trailing data");
+
+        expect(() => {
+            Uint8Array.fromBase64("A==", { lastChunkHandling: "loose" });
+        }).toThrowWithMessage(SyntaxError, "Invalid trailing data");
+
+        expect(() => {
+            Uint8Array.fromBase64("A==", { lastChunkHandling: "strict" });
+        }).toThrowWithMessage(SyntaxError, "Invalid trailing data");
+
+        expect(() => {
+            Uint8Array.fromBase64("A==", { lastChunkHandling: "stop-before-partial" });
+        }).toThrowWithMessage(SyntaxError, "Invalid trailing data");
     });
 
     test("invalid alphabet", () => {
diff --git a/vcpkg.json b/vcpkg.json
index f861362134e..dc8a71e1ab1 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -251,7 +251,7 @@
     },
     {
       "name": "simdutf",
-      "version": "7.3.0#0"
+      "version": "7.3.3#0"
     },
     {
       "name": "skia",