From 085e81feed1011d7aa7253ee42604226f787a466 Mon Sep 17 00:00:00 2001
From: SpyCheese <mikle98@yandex.ru>
Date: Wed, 15 Jan 2025 15:37:54 +0300
Subject: [PATCH] Fix out-of-bound access in tl_jni_object.cpp

---
 tl/tl/tl_jni_object.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tl/tl/tl_jni_object.cpp b/tl/tl/tl_jni_object.cpp
index e7e69789c..26a94d627 100644
--- a/tl/tl/tl_jni_object.cpp
+++ b/tl/tl/tl_jni_object.cpp
@@ -115,8 +115,9 @@ static size_t get_utf8_from_utf16_length(const jchar *p, jsize len) {
   for (jsize i = 0; i < len; i++) {
     unsigned int cur = p[i];
     if ((cur & 0xF800) == 0xD800) {
+      ++i;
       if (i < len) {
-        unsigned int next = p[++i];
+        unsigned int next = p[i];
         if ((next & 0xFC00) == 0xDC00 && (cur & 0x400) == 0) {
           result += 4;
           continue;