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authorMark Pulford <mark@kyne.com.au>2012-01-17 16:58:10 +0400
committerMark Pulford <mark@kyne.com.au>2012-03-04 12:24:35 +0400
commit8faf8490e518315a8eff17a76b019debe48104b4 (patch)
tree3ab249cd8b9ce70ada61425d2749e0c3b3196f60 /tests
parente3b3da50f10096de12bb6b47156dd2c94c373a19 (diff)
Fix Lua C function stack overflow during encoding
Ensure there are enough Lua stack slots available before descending into another table during encoding. This fixes a segfault when encoding deeply nested tables. This bug wasn't noticed earlier due to the previous limit of 20 nested tables.
Diffstat (limited to 'tests')
-rwxr-xr-xtests/test.lua9
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/test.lua b/tests/test.lua
index a827e6a..4c00453 100755
--- a/tests/test.lua
+++ b/tests/test.lua
@@ -67,6 +67,12 @@ function load_testdata()
data.table_cycle = {}
data.table_cycle[1] = data.table_cycle
+ local big = {}
+ for i = 1, 1100 do
+ big = { { 10, false, true, cjson.null }, "string", a = big }
+ end
+ data.deeply_nested_data = big
+
return data
end
@@ -185,6 +191,9 @@ local cjson_tests = {
false, { "Cannot serialise, excessive nesting (6)" } },
{ "Set encode_max_depth(1000)",
json.encode_max_depth, { 1000 }, true, { 1000 } },
+ { "Encode deeply nested data [throw error]",
+ json.encode, { testdata.deeply_nested_data },
+ false, { "Cannot serialise, excessive nesting (1001)" } },
-- Test encoding simple types
{ "Encode null",