From: Nathan Moinvaziri <nathan@nathanm.com>
Date: Sat, 9 Apr 2022 14:22:01 +0000 (-0700)
Subject: Fixed off-by-one error when benchmarking compare256 resulting in heap-buffer-overflow.
X-Git-Tag: 2.1.0-beta1~275
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1dce534adb2ba7f136ebe89ad405fa4fd465702e;p=thirdparty%2Fzlib-ng.git

Fixed off-by-one error when benchmarking compare256 resulting in heap-buffer-overflow.
---

diff --git a/test/benchmarks/benchmark_compare256.cc b/test/benchmarks/benchmark_compare256.cc
index e690e8ef..cc1ee5c1 100644
--- a/test/benchmarks/benchmark_compare256.cc
+++ b/test/benchmarks/benchmark_compare256.cc
@@ -32,7 +32,7 @@ public:
     }
 
     void Bench(benchmark::State& state, compare256_func compare256) {
-        int32_t match_len = (int32_t)state.range(0);
+        int32_t match_len = (int32_t)state.range(0) - 1;
         uint32_t len;
 
         str2[match_len] = 0;