From: Elliot Gorokhovsky <embg@fb.com>
Date: Thu, 9 Jun 2022 15:39:30 +0000 (-0400)
Subject: Bugfix for huge dictionaries
X-Git-Tag: v1.5.4^2~204^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31bd6402c63a33e81513de6511c6447c63456625;p=thirdparty%2Fzstd.git

Bugfix for huge dictionaries
---

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index e43bbec44..6fe46f5b7 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -4219,7 +4219,7 @@ static size_t ZSTD_loadDictionaryContent(ZSTD_matchState_t* ms,
          * Dictionaries right at the edge will immediately trigger overflow
          * correction, but I don't want to insert extra constraints here.
          */
-        U32 const maxDictSize = ZSTD_CURRENT_MAX - 1;
+        U32 const maxDictSize = ZSTD_CURRENT_MAX - ZSTD_WINDOW_START_INDEX;
         /* We must have cleared our windows when our source is this large. */
         assert(ZSTD_window_isEmpty(ms->window));
         if (loadLdmDict)