From 72e26ea4839206a379f46e49e84e5203294b9fbb Mon Sep 17 00:00:00 2001
From: Alex Hultman <alexhultman@gmail.com>
Date: Sat, 24 Oct 2020 08:28:35 +0200
Subject: [PATCH] Update PerMessageDeflate.cpp

---
 fuzzing/PerMessageDeflate.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fuzzing/PerMessageDeflate.cpp b/fuzzing/PerMessageDeflate.cpp
index 8b34a4a..5beac54 100644
--- a/fuzzing/PerMessageDeflate.cpp
+++ b/fuzzing/PerMessageDeflate.cpp
@@ -48,7 +48,9 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
             auto inflation = staticData.inflationStream.inflate(&staticData.zlibContext, std::string_view((char *) data, size), 256);
 
             /* Trigger ASAN flaws if length is more than 256 */
-            b.set(inflation->length());
+            if (inflation.has_value()) {
+                b.set(inflation->length());
+            }
         });
 
         makeChunked(makePadded(data, size), size, [&staticData](const uint8_t *data, size_t size) {