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authorweili <weili@chromium.org>2016-08-23 22:08:37 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-23 22:08:37 -0700
commita470b5e5371d0674d06068ec38d0d3c3279e85e1 (patch)
treee13f893084515082052e30c1cb8d94ec6303e38b /core/fpdfapi/fpdf_render
parent0dadcc6fdab7ad1f2ee95d763f31aad5d3534f93 (diff)
downloadpdfium-a470b5e5371d0674d06068ec38d0d3c3279e85e1.tar.xz
Fix stack overflow in object Clone() functions
For some complex objects such as CPDF_Dictionary, CPDF_Array, CPDF_Stream, and CPDF_Reference, Clone() could be executed with infinite recursion to cause the stack overflow. Fix this by checking already cloned objects to avoid recursion. BUG=pdfium:513 Review-Url: https://codereview.chromium.org/2250533002
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