From cecf92e5b836dacc97fd074b4af449c4bcf4af23 Mon Sep 17 00:00:00 2001
From: NefariousTechSupport
 <64808609+NefariousTechSupport@users.noreply.github.com>
Date: Sun, 20 Apr 2025 08:12:19 +0100
Subject: [PATCH] Copy debug self elf properly (#17070)

In 7de2869a5364ca5d48ea0a2212621adc0e20bc2f this was changed to be a bit more safe, however it was reading from offset 0 instead of where the real elf started, meaning every debug self would just fail to load immediately.
---
 rpcs3/Crypto/unself.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/rpcs3/Crypto/unself.cpp b/rpcs3/Crypto/unself.cpp
index db038bc368..3c187400cb 100644
--- a/rpcs3/Crypto/unself.cpp
+++ b/rpcs3/Crypto/unself.cpp
@@ -1336,8 +1336,8 @@ static fs::file CheckDebugSelf(const fs::file& s)
 		// Get the real elf offset.
 		s.seek(0x10);
 
-		// Start at the real elf offset.
-		s.seek(key_version == 0x80 ? +s.read<be_t<u64>>() : +s.read<le_t<u64>>());
+		// Read the real elf offset.
+		usz read_pos = key_version == 0x80 ? +s.read<be_t<u64>>() : +s.read<le_t<u64>>();
 
 		// Write the real ELF file back.
 		fs::file e = fs::make_stream<std::vector<u8>>();
@@ -1345,7 +1345,6 @@ static fs::file CheckDebugSelf(const fs::file& s)
 		// Copy the data.
 		std::vector<u8> buf(std::min<usz>(s.size(), 4096));
 
-		usz read_pos = 0;
 		while (const u64 size = s.read_at(read_pos, buf.data(), buf.size()))
 		{
 			e.write(buf.data(), size);