From: Yann Collet <cyan@fb.com>
Date: Thu, 8 Nov 2018 20:57:34 +0000 (-0800)
Subject: reduced assertion strength
X-Git-Tag: v1.3.8~52^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1410%2Fhead;p=thirdparty%2Fzstd.git

reduced assertion strength

one limit case can apparently be generated during fuzzer tests
---

diff --git a/lib/decompress/zstd_decompress_block.c b/lib/decompress/zstd_decompress_block.c
index ef424877b..71bb8e97b 100644
--- a/lib/decompress/zstd_decompress_block.c
+++ b/lib/decompress/zstd_decompress_block.c
@@ -1037,7 +1037,7 @@ ZSTD_decompressSequencesLong_body(
         seqState.prefixStart = prefixStart;
         seqState.pos = (size_t)(op-prefixStart);
         seqState.dictEnd = dictEnd;
-        assert(iend > ip);
+        assert(iend >= ip);
         CHECK_E(BIT_initDStream(&seqState.DStream, ip, iend-ip), corruption_detected);
         ZSTD_initFseState(&seqState.stateLL, &seqState.DStream, dctx->LLTptr);
         ZSTD_initFseState(&seqState.stateOffb, &seqState.DStream, dctx->OFTptr);