From 022e6d81e73261fbcab63337105b261fad721442 Mon Sep 17 00:00:00 2001
From: senhuang42 <senhuang96@fb.com>
Date: Tue, 10 Nov 2020 13:48:02 -0500
Subject: [PATCH] Fix literals length calculation

---
 lib/compress/zstd_compress.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index a0b6b425..c19b243c 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -4587,6 +4587,7 @@ static size_t ZSTD_copySequencesToSeqStore(seqStore_t* seqStore, const ZSTD_sequ
                 break;
             } else {
                 /* Spanned range ends in the match section */
+                litLength = seqRange->startPosInSequence > litLength ? 0 : litLength - seqRange->startPosInSequence;
                 matchLength = seqLength - litLength;
             }