From 03f498a5ed4bfaa8f2b399f590a5ac08f81b4026 Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Mon, 15 Feb 2021 20:17:05 +1100
Subject: [PATCH] Fix potential race condition on checksum.len

---
 rzip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rzip.c b/rzip.c
index 732d498..526d02e 100644
--- a/rzip.c
+++ b/rzip.c
@@ -718,8 +718,8 @@ static inline void hash_search(rzip_control *control, struct rzip_state *st,
 				failure("Failed to malloc ckbuf in hash_search\n");
 			control->do_mcpy(control, control->checksum.buf, cksum_limit, control->checksum.len);
 			control->checksum.cksum = &st->cksum;
-			cksum_update(control);
 			cksum_limit += control->checksum.len;
+			cksum_update(control);
 		}
 	}