From cebd4392f2b7c795e60ddcd879602969948ed123 Mon Sep 17 00:00:00 2001
From: John Reiser <jreiser@BitWagon.com>
Date: Fri, 5 Jul 2024 19:06:14 -0700
Subject: [PATCH] Fix checksum error de-compressing ELF with large .p_align and
 small blocksize

https://github.com/upx/upx/issues/836
	modified:   p_unix.cpp
---
 src/p_unix.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/p_unix.cpp b/src/p_unix.cpp
index 608bde53..b65190b6 100644
--- a/src/p_unix.cpp
+++ b/src/p_unix.cpp
@@ -396,7 +396,7 @@ void PackUnix::packExtent(
             ph.c_len = ph.u_len;
             memcpy(obuf, ibuf, ph.c_len);
             // must update checksum of compressed data
-            ph.c_adler = upx_adler32(ibuf, ph.u_len, init_c_adler);
+            ph.c_adler = upx_adler32(ibuf, ph.u_len, ph.c_adler);
         }
 
         // write block sizes