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| author | Ryan Harrison <rharrison@chromium.org> | 2017-07-31 14:19:03 -0400 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-07-31 18:36:00 +0000 |
| commit | b73680c6b57d3848de6e1a2355b4650601031e12 (patch) | |
| tree | eca55b8541cf73411abeeb3140baa8873433a830 /xfa/fxfa | |
| parent | 95e5ac2a9c5a1c5e29ddd6407c2200b840c91a50 (diff) | |
| download | pdfium-b73680c6b57d3848de6e1a2355b4650601031e12.tar.xz | |
Remove null derefence case caught by fuzzers
This change also removes some variable shadowing that was going on
here.
BUG=chromium:750013
Change-Id: I7314166af3ecd55ea5e1105afbe171443b1b22ae
Reviewed-on: https://pdfium-review.googlesource.com/9630
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Diffstat (limited to 'xfa/fxfa')
| -rw-r--r-- | xfa/fxfa/fm2js/cxfa_fmparser.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/xfa/fxfa/fm2js/cxfa_fmparser.cpp b/xfa/fxfa/fm2js/cxfa_fmparser.cpp index 150fa5aeda..4cd9a747a9 100644 --- a/xfa/fxfa/fm2js/cxfa_fmparser.cpp +++ b/xfa/fxfa/fm2js/cxfa_fmparser.cpp @@ -657,9 +657,11 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression( std::vector<std::unique_ptr<CXFA_FMSimpleExpression>> expressions; if (m_token->m_type != TOKrparen) { while (m_token->m_type != TOKrparen) { - if (std::unique_ptr<CXFA_FMSimpleExpression> expr = - ParseSimpleExpression()) - expressions.push_back(std::move(expr)); + std::unique_ptr<CXFA_FMSimpleExpression> simple_expr = + ParseSimpleExpression(); + if (!simple_expr) + return nullptr; + expressions.push_back(std::move(simple_expr)); if (m_token->m_type == TOKcomma) { if (!NextToken()) return nullptr; |