From 4dd613cb51c1d77ac2998f760325ed5b93f4ebf0 Mon Sep 17 00:00:00 2001
From: kcwu <kcwu@chromium.org>
Date: Fri, 23 Sep 2016 09:26:51 -0700
Subject: Bail out on bad width and height in CCodec_FaxDecoder::CreateDecoder

BUG=648935,649436

Review-Url: https://codereview.chromium.org/2360283004
---
 testing/libfuzzer/pdf_codec_fax_fuzzer.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'testing/libfuzzer/pdf_codec_fax_fuzzer.cc')

diff --git a/testing/libfuzzer/pdf_codec_fax_fuzzer.cc b/testing/libfuzzer/pdf_codec_fax_fuzzer.cc
index 1a04c31aa0..60e2c9ff19 100644
--- a/testing/libfuzzer/pdf_codec_fax_fuzzer.cc
+++ b/testing/libfuzzer/pdf_codec_fax_fuzzer.cc
@@ -34,9 +34,11 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
                                          EndOfLine, ByteAlign, BlackIs1,
                                          Columns, Rows));
 
-  int line = 0;
-  while (decoder->GetScanline(line))
-    line++;
+  if (decoder) {
+    int line = 0;
+    while (decoder->GetScanline(line))
+      line++;
+  }
 
   return 0;
 }
-- 
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