From d5bf436d3acd2bb4124ba44b5bca3193e68909ce Mon Sep 17 00:00:00 2001
From: Alex Lorenz <arphaman@gmail.com>
Date: Sat, 14 Oct 2017 01:18:30 +0000
Subject: [Lex] Avoid out-of-bounds dereference in SkipLineComment

Credit to OSS-Fuzz for discovery:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3145

rdar://34526482

llvm-svn: 315785
---
 clang/unittests/Lex/LexerTest.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'clang/unittests/Lex/LexerTest.cpp')

diff --git a/clang/unittests/Lex/LexerTest.cpp b/clang/unittests/Lex/LexerTest.cpp
index 35eee12..894f8c7 100644
--- a/clang/unittests/Lex/LexerTest.cpp
+++ b/clang/unittests/Lex/LexerTest.cpp
@@ -473,4 +473,9 @@ TEST_F(LexerTest, GetBeginningOfTokenWithEscapedNewLine) {
   }
 }
 
+TEST_F(LexerTest, AvoidPastEndOfStringDereference) {
+  std::vector<Token> LexedTokens = Lex("  //  \\\n");
+  EXPECT_TRUE(LexedTokens.empty());
+}
+
 } // anonymous namespace
-- 
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