Add json fuzzer with seed files from #1123 and test suite

...as well as some cases generated in CI from earlier attempts at
fixing this.

1 files changed, 62 insertions, 0 deletions

diff --git a/fuzz/json_fuzzer_seed_corpus/393aefa985090be2e48f69f7a0305ecbce89ad26 b/fuzz/json_fuzzer_seed_corpus/393aefa985090be2e48f69f7a0305ecbce89ad26
new file mode 100644
index 00000000..cef9c554
--- /dev/null
+++ b/fuzz/json_fuzzer_seed_corpus/393aefa985090be2e48f69f7a0305ecbce89ad26
@@ -0,0 +1,62 @@
+{
+  "qpdf": [
+    {
+      "jsonversion": 2,
+      "pdfversion": "1.3",
+      "maxobjectid": 6
+    },
+    {
+      "obj:1 0 R": {
+        "value": {
+          "/Pages": "2 0 R",
+          "/Type": "/Catalog"
+        }
+      },
+      "obj:2 0 R": {
+        "value": {
+          "/Count": 1,
+          "/Kids": [
+            "3 0 R"
+          ],
+          "/Type": "/Pages"
+        },
+        "stream": {
+          "data": "QlQKICAvRjEgMjQgVGYKICA3MiA3MjAgVGQKICAoUG90YXRvKSBUagpFVAo=",
+          "dict": {}
+        }
+      },
+      "obj:3 0 R": {
+        "potato": {
+          "salad": "ignored-so-no-string-error",
+          "nested": [1, 2, {"x": "y"}]
+        }
+      },
+      "obj:4 0 R": {
+        "stream": {
+          "potato": "u:salad"
+        }
+      },
+      "obj:5 0 R": {
+        "stream": {
+          "dic„": {"/A": "/B"},
+          "data": "QlQKICAvRjEgMjQgVGYKICA3MiA3MjAgVGQKICAoUG90YXRvKSBUagpFVAo=",
+          "datafile": "abc"
+        }
+      },
+      "obj:6 0 R": {
+        "value": {
+          "/BaseFont": "/Helvetica",
+          "/Encoding": "/WinAnsiEncoding",
+          "/Subtype": "/Type0",
+          "/Type": "/Font"
+        }
+      },
+      "trailer": {
+        "potato": {
+          "/Root": "1 0 R",
+          "/Size": 7
+        }
+      }
+    }
+  ]
+}