From 3278270cbeff3a09d30f83f184c5292822d795e3 Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Fri, 30 Jul 2021 16:36:15 +0100
Subject: [PATCH] Regression test for
 https://github.com/Exiv2/exiv2/issues/1812

---
 test/data/issue_1812_poc.jp2             | Bin 0 -> 80 bytes
 tests/bugfixes/github/test_issue_1812.py |  25 +++++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 test/data/issue_1812_poc.jp2
 create mode 100644 tests/bugfixes/github/test_issue_1812.py

diff --git a/test/data/issue_1812_poc.jp2 b/test/data/issue_1812_poc.jp2
new file mode 100644
index 0000000000000000000000000000000000000000..af82b32c32cf13d30f26618d6bf22685fc0236f8
GIT binary patch
literal 80
zcmZQzVBpCLP*C9IYUlb71f`{!DP9HXA(?4ut`(VSx^`XxMujt{Onkh4&AzJhr>C!U
VdNBveH&I|<V9?DfFalC=GXNAH9=rem

literal 0
HcmV?d00001

diff --git a/tests/bugfixes/github/test_issue_1812.py b/tests/bugfixes/github/test_issue_1812.py
new file mode 100644
index 00000000..0385199a
--- /dev/null
+++ b/tests/bugfixes/github/test_issue_1812.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, path, check_no_ASAN_UBSAN_errors
+
+
+class OutOfMemoryInJp2ImageReadMetadata(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/issues/1812
+
+    Due to a missing bounds check, 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/1812"
+
+    filename = path("$data_path/issue_1812_poc.jp2")
+    commands = ["$exiv2 $filename"]
+    stdout = [""]
+    stderr = [
+        """$exiv2_exception_message $filename:
+$kerInputDataReadFailed
+"""]
+    retval = [1]