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YAMLParser: Fix invalid reads when encountering incorrectly quoted scalar.
author
Benjamin Kramer
<benny.kra@googlemail.com>
Wed, 26 Sep 2012 15:52:15 +0000
(15:52 +0000)
committer
Benjamin Kramer
<benny.kra@googlemail.com>
Wed, 26 Sep 2012 15:52:15 +0000
(15:52 +0000)
Fixes PR12632.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164701
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Support/YAMLParser.cpp
patch
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diff --git
a/lib/Support/YAMLParser.cpp
b/lib/Support/YAMLParser.cpp
index 7c353c89bb842a86089ef716a7edcdcb426db05a..34df636a72a06a12e4534223b7ef4eae679a6b46 100644
(file)
--- a/
lib/Support/YAMLParser.cpp
+++ b/
lib/Support/YAMLParser.cpp
@@
-903,6
+903,7
@@
bool Scanner::consume(uint32_t Expected) {
void Scanner::skip(uint32_t Distance) {
Current += Distance;
Column += Distance;
+ assert(Current <= End && "Skipped past the end");
}
bool Scanner::isBlankOrBreak(StringRef::iterator Position) {
@@
-1239,6
+1240,12
@@
bool Scanner::scanFlowScalar(bool IsDoubleQuoted) {
}
}
}
+
+ if (Current == End) {
+ setError("Expected quote at end of scalar", Current);
+ return false;
+ }
+
skip(1); // Skip ending quote.
Token T;
T.Kind = Token::TK_Scalar;