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bound marker string length in aruco readDictionary

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This commit is contained in:
Uwez Khan
2026-07-16 19:44:15 +05:30
parent 2e778c52c1
commit b5fe8dfef3
2 changed files with 44 additions and 0 deletions
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modules/objdetect/test/test_arucodetection.cpp
+40
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@@ -1409,6 +1409,46 @@ TEST(CV_ArucoMultiDict, serialization)
}
TEST(CV_ArucoDictionary, readDictionary_oversized_marker)
{
// A marker string longer than markersize*markersize must be rejected instead of
// being written past the markersize x markersize buffer in readDictionary.
std::string serialized;
{
FileStorage fs_out(".json", FileStorage::WRITE + FileStorage::MEMORY);
ASSERT_TRUE(fs_out.isOpened());
fs_out << "nmarkers" << 1;
fs_out << "markersize" << 5;
fs_out << "marker_0" << std::string(2000, '1');
serialized = fs_out.releaseAndGetString();
}
FileStorage fs_in(serialized, FileStorage::READ + FileStorage::MEMORY);
ASSERT_TRUE(fs_in.isOpened());
aruco::Dictionary dict;
bool ok = true;
ASSERT_NO_THROW(ok = dict.readDictionary(fs_in.root()));
EXPECT_FALSE(ok);
}
TEST(CV_ArucoDictionary, readDictionary_roundtrip)
{
aruco::Dictionary dict = aruco::getPredefinedDictionary(aruco::DICT_5X5_50);
std::string serialized;
{
FileStorage fs_out(".json", FileStorage::WRITE + FileStorage::MEMORY);
ASSERT_TRUE(fs_out.isOpened());
dict.writeDictionary(fs_out);
serialized = fs_out.releaseAndGetString();
}
FileStorage fs_in(serialized, FileStorage::READ + FileStorage::MEMORY);
ASSERT_TRUE(fs_in.isOpened());
aruco::Dictionary loaded;
ASSERT_TRUE(loaded.readDictionary(fs_in.root()));
EXPECT_EQ(dict, loaded);
}
struct ArucoThreading: public testing::TestWithParam<aruco::CornerRefineMethod>
{
struct NumThreadsSetter {