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| author | JUN FANG <jun_fang@foxitsoftware.com> | 2015-04-23 10:12:19 -0700 |
|---|---|---|
| committer | JUN FANG <jun_fang@foxitsoftware.com> | 2015-04-23 10:20:51 -0700 |
| commit | f99882e726d4a78e1b8fecad8b478276fbdf9c86 (patch) | |
| tree | b2926f3e3b56f522f206a9276f6c97d271fe5ee9 /core/src/fpdfapi | |
| parent | b208774174e102da9f218d89bf8a3af7a0e37f09 (diff) | |
| download | pdfium-f99882e726d4a78e1b8fecad8b478276fbdf9c86.tar.xz | |
Merge to XFA: Fix segmentation fault 'denial of service condition'
BUG=467392
R=thestig@chromium.org, tsepez@chromium.org
Review URL: https://codereview.chromium.org/1064713008
Diffstat (limited to 'core/src/fpdfapi')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp index 18f06d6a14..c70e94c984 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp @@ -7,6 +7,9 @@ #include "../../../include/fpdfapi/fpdf_parser.h" #include "../../../include/fxcrt/fx_string.h" +//static +int CPDF_Object::s_nCurRefDepth = 0; + void CPDF_Object::Release() { if (m_ObjNum) { @@ -107,6 +110,10 @@ FX_FLOAT CPDF_Object::GetNumber16() const } int CPDF_Object::GetInteger() const { + CFX_AutoRestorer<int> restorer(&s_nCurRefDepth); + if (++s_nCurRefDepth > OBJECT_REF_MAX_DEPTH) { + return 0; + } switch (m_Type) { case PDFOBJ_BOOLEAN: return ((CPDF_Boolean*)this)->m_bValue; |