third_party/exiv2
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Detect integer-overflow and throw in that case

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This commit is contained in:
Luis Díaz Más 2022-04-04 09:18:02 +02:00
parent 3ee193f12f
commit bd68c14de5
1 changed files with 2 additions and 1 deletions
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src/exif.cpp
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@ -14,6 +14,7 @@
#include "config.h"
#include "error.hpp"
#include "metadatum.hpp"
#include "safe_op.hpp"
#include "tags.hpp"
#include "tags_int.hpp"
#include "tiffcomposite_int.hpp" // for Tag::root
@ -741,7 +742,7 @@ Exiv2::DataBuf JpegThumbnail::copy(const Exiv2::ExifData& exifData) const {
int64_t sumToLong(const Exiv2::Exifdatum& md) {
int64_t sum = 0;
for (size_t i = 0; i < md.count(); ++i) {
sum += md.toInt64(i);
sum = Safe::add(sum, md.toInt64(i));
}
return sum;
}