From 5347bfb6b8945d03f32e678c0b98122601833b3f Mon Sep 17 00:00:00 2001
From: Curve <fynnbwdt@gmail.com>
Date: Mon, 13 May 2024 01:07:26 +0200
Subject: [PATCH] refactor(hook): pad jump with nops

---
 src/hooks.hook.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/hooks.hook.cpp b/src/hooks.hook.cpp
index 38c03cc..fd54fd7 100644
--- a/src/hooks.hook.cpp
+++ b/src/hooks.hook.cpp
@@ -125,7 +125,15 @@ namespace lime
         const auto spring_board = near ? false : rtn->m_impl->create_springboard();
         const auto destination  = spring_board ? rtn->m_impl->spring_board->start() : target;
 
-        const auto jump = impl::make_jmp(source, destination, near || spring_board);
+        auto jump           = impl::make_jmp(source, destination, near || spring_board);
+        const auto prologue = rtn->m_impl->prologue.size();
+
+        if (jump.size() < prologue)
+        {
+            const auto remaining = prologue - jump.size();
+            std::vector<std::uint8_t> padding(remaining, 0x90);
+            std::ranges::move(padding, std::back_inserter(jump));
+        }
 
         if (!rtn->m_impl->source_page->protect(rwx))
         {