import system_tests
class IntegerOverflowInWebpImageReadMetadata(
metaclass=system_tests.CaseMeta):
"""
Regression test for the bug described in:
https://github.com/Exiv2/exiv2/issues/791
Due to an integer overflow bug (#791), this test triggers a 4GB
memory allocation. So the test will fail with a std::bad_alloc
exception if less than 4GB is available. On Linux, you can use
`ulimit -v 4000000` to reduce the available memory to slightly
less than 4GB.
"""
url = "https://github.com/Exiv2/exiv2/issues/791"
filename = system_tests.path(
"$data_path/issue_791_poc1.webp"
)
commands = ["$exiv2 $filename"]
stdout = [""]
stderr = ["""Exiv2 exception in print action for file $filename:
$kerCorruptedMetadata
"""
]
retval = [1]