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authordsinclair <dsinclair@chromium.org>2016-08-03 10:08:13 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-03 10:08:13 -0700
commite85f971fe9ba628e46bcb0709d5da4368c15d0b0 (patch)
treeef0bd0cecbd4b7be0fcd9031be002ffc10fd7fb7 /core/fdrm
parent0d8c2d120efe62d79d083f25b43aa814d0f24646 (diff)
downloadpdfium-e85f971fe9ba628e46bcb0709d5da4368c15d0b0.tar.xz
Fix FMCallExpression undefined shift behaviour.
When determining which params should be an object and which are a value it is possible to overflow the int on the shift comparision (if there are more then 32 arguments). This never happens in practise as it's a controlled list of method calls which we pass objects for. Cap the check at 32 for the shifting so it doesn't overflow. We can revisit and extend the value later if we ever have an internal formcalc method that needs an object in a position greater then 32. BUG=chromium:603490 Review-Url: https://codereview.chromium.org/2206253002
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