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authorRyan Harrison <rharrison@chromium.org>2017-08-31 11:57:14 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-31 17:06:29 +0000
commitbc0ca1ec9b157ab8773c9043725c7422f7c1a57c (patch)
treec1e46db02a10e3377d597265dcf125b980c277b0 /core/fxcrt/cfx_datetime.cpp
parentdf064df7a08e008b3c8e4d56bb0b75da9f014147 (diff)
downloadpdfium-bc0ca1ec9b157ab8773c9043725c7422f7c1a57c.tar.xz
Prevent duplicate parses of same data, in the same recursive descent
When parsing if there is a loop in the data being parsed, the recursions will just keep cycling until it exhausts memory and crashes. This CL introduces a parsed set, which a reference to is passed down the descent. If the data being parsed at a specific stage of the descent is already in the parsed set, then the parse returns at that point. BUG=chromium:759224 Change-Id: I1dca73d81020099dec03fd49aaa44cdcdf38e17e Reviewed-on: https://pdfium-review.googlesource.com/12470 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Diffstat (limited to 'core/fxcrt/cfx_datetime.cpp')
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