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authorTom Sepez <tsepez@chromium.org>2018-10-17 17:57:51 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-10-17 17:57:51 +0000
commit5ae6c564d16ce8b625df3d1950abc822f9ecc987 (patch)
tree96bb64df3166e46db397e405789588bf8dc53842 /core/fpdfapi/parser/cpdf_data_avail.cpp
parent785a26dc649af80c593f899a606dff4dae7c48fd (diff)
downloadpdfium-5ae6c564d16ce8b625df3d1950abc822f9ecc987.tar.xz
Add CPDF_{Array,Dictionary}Locker to catch illegal iteration patterns.
Move begin/end methods onto locker object which tracks whether iterators are in existence. Change-Id: Ia869f313fce48d10a0d0180d0cc083eed6ea1584 Reviewed-on: https://pdfium-review.googlesource.com/c/44070 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fpdfapi/parser/cpdf_data_avail.cpp')
-rw-r--r--core/fpdfapi/parser/cpdf_data_avail.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index c046996498..b685214f6f 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -310,7 +310,8 @@ bool CPDF_DataAvail::CheckPage() {
}
CPDF_Array* pArray = ToArray(pObj.get());
if (pArray) {
- for (const auto& pArrayObj : *pArray) {
+ CPDF_ArrayLocker locker(pArray);
+ for (const auto& pArrayObj : locker) {
if (CPDF_Reference* pRef = ToReference(pArrayObj.get()))
UnavailObjList.push_back(pRef->GetRefObjNum());
}