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| author | weili <weili@chromium.org> | 2016-08-23 22:08:37 -0700 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2016-08-23 22:08:37 -0700 |
| commit | a470b5e5371d0674d06068ec38d0d3c3279e85e1 (patch) | |
| tree | e13f893084515082052e30c1cb8d94ec6303e38b /fpdfsdk/fpdfppo.cpp | |
| parent | 0dadcc6fdab7ad1f2ee95d763f31aad5d3534f93 (diff) | |
| download | pdfium-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
Diffstat (limited to 'fpdfsdk/fpdfppo.cpp')
| -rw-r--r-- | fpdfsdk/fpdfppo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fpdfsdk/fpdfppo.cpp b/fpdfsdk/fpdfppo.cpp index 97fd390cb3..85dba5e975 100644 --- a/fpdfsdk/fpdfppo.cpp +++ b/fpdfsdk/fpdfppo.cpp @@ -407,6 +407,6 @@ DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc, if (!pDstDict) return FALSE; - pDstDict->SetAt("ViewerPreferences", pSrcDict->Clone(TRUE)); + pDstDict->SetAt("ViewerPreferences", pSrcDict->CloneDirectObject()); return TRUE; } |