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authorTom Sepez <tsepez@chromium.org>2018-04-11 19:56:43 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-04-11 19:56:43 +0000
commit4796acb896dabefe6d9a2dbe6d8a61ff7e086dfd (patch)
tree34a2f08eb2945c0f6bf52fa55937a42d5648625f /fpdfsdk/cpdfsdk_formfillenvironment.cpp
parent5b1fd5c7f172e32aed4fc47bf57a17c63c13e03c (diff)
downloadpdfium-4796acb896dabefe6d9a2dbe6d8a61ff7e086dfd.tar.xz
Make cxfa_fmlexer.cpp resilient to null strings
As currently written, the calculation of m_end will underflow when passed a {nullptr, 0} pair as input, and m_end becomes essentially unbounded. Change-Id: Id3249b201c446555d9aa4fa04e6a3c94a357cd99 Reviewed-on: https://pdfium-review.googlesource.com/30230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'fpdfsdk/cpdfsdk_formfillenvironment.cpp')
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