From f1de371eb4d823cc803b9c052debc006299b64be Mon Sep 17 00:00:00 2001
From: Yann Collet <cyan@fb.com>
Date: Sun, 5 Feb 2023 15:57:58 -0800
Subject: [PATCH] fix oss-fuzz case 55714

happening only when enabling Legacy Format v0.3 and in 32-bit mode
(note: support for format 0.3 is disabled by default)
---
 lib/legacy/zstd_v03.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/legacy/zstd_v03.c b/lib/legacy/zstd_v03.c
index 5b1fd7175c..8ec2e7350b 100644
--- a/lib/legacy/zstd_v03.c
+++ b/lib/legacy/zstd_v03.c
@@ -2711,7 +2711,7 @@ static size_t ZSTD_execSequence(BYTE* op,
     if (litEnd > litLimit) return ERROR(corruption_detected);   /* overRead beyond lit buffer */
 
     /* copy Literals */
-    ZSTD_wildcopy(op, *litPtr, sequence.litLength);   /* note : oLitEnd <= oend-8 : no risk of overwrite beyond oend */
+    ZSTD_memmove(op, *litPtr, sequence.litLength);   /* note : used to be wildCopy, changed to fix a bug in 32-bit mode (oss-fuzz case 55714) */
     op = oLitEnd;
     *litPtr = litEnd;   /* update for next sequence */