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authordsinclair <dsinclair@chromium.org>2016-08-11 07:50:08 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-11 07:50:08 -0700
commit22eeccb34f91f9932f7cec295bcaf641ba249e3a (patch)
tree9775d10c30ff05cabd4d8238a037d3865588ec94 /core/fpdfapi/fpdf_parser
parentb4d1b576bccb5ca6cebe29288af014bd0f512af1 (diff)
downloadpdfium-22eeccb34f91f9932f7cec295bcaf641ba249e3a.tar.xz
Guard against undefined shift.
This Cl fixes the CFDE_XMLSyntaxParser::ParseTextChar() to handle entities where the value goes negative. Currently this could cause an undefined-shift as due to the (ch << 4) calls. Instead, detect if the value has gone negative and return a space character. BUG=chromium:603489 Review-Url: https://codereview.chromium.org/2223823003
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