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-rw-r--r--source/pdf/pdf-function.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/source/pdf/pdf-function.c b/source/pdf/pdf-function.c
index 1207b191..b319dd97 100644
--- a/source/pdf/pdf-function.c
+++ b/source/pdf/pdf-function.c
@@ -1220,7 +1220,8 @@ load_stitching_func(fz_context *ctx, pdf_document *doc, pdf_function *func, pdf_
fz_try(ctx)
{
- pdf_mark_obj(ctx, obj);
+ if (pdf_mark_obj(ctx, obj))
+ fz_throw(ctx, FZ_ERROR_GENERIC, "recursive function");
k = pdf_array_len(ctx, obj);
func->u.st.funcs = fz_malloc_array(ctx, k, sizeof(fz_function*));