From: W. Felix Handte <w@felixhandte.com>
Date: Wed, 14 Aug 2019 15:35:53 +0000 (-0400)
Subject: Only the CCtx Itself Needs to be Cleared during Static CCtx Init
X-Git-Tag: v1.4.4~1^2~57^2~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58b69ab15c9088a7c8afbc01431f3e33add54ed5;p=thirdparty%2Fzstd.git

Only the CCtx Itself Needs to be Cleared during Static CCtx Init
---

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index 78a579450..a8bf0d927 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -281,7 +281,7 @@ ZSTD_CCtx* ZSTD_initStaticCCtx(void *workspace, size_t workspaceSize)
     ZSTD_CCtx* const cctx = (ZSTD_CCtx*) workspace;
     if (workspaceSize <= sizeof(ZSTD_CCtx)) return NULL;  /* minimum size */
     if ((size_t)workspace & 7) return NULL;  /* must be 8-aligned */
-    memset(workspace, 0, workspaceSize);   /* may be a bit generous, could memset be smaller ? */ /* TODO(felixh): investigate */
+    memset(cctx, 0, sizeof(ZSTD_CCtx));
     cctx->staticSize = workspaceSize;
     ZSTD_workspace_init(&cctx->workspace, (void*)(cctx+1), workspaceSize - sizeof(ZSTD_CCtx));