[dvipdfmx] [PATCH] Embedding of CFF based fonts without Private dictionary
Marcel Fabian Krüger
tex at 2krueger.de
Fri Oct 29 01:52:22 CEST 2021
Hi,
some time ago, a dvipdfmx bug got reported on TeX StackExchange
(https://tex.stackexchange.com/questions/610371/fonts-without-bold-italic-xelatex):
When embedding a CFF based OpenType font which does not contain a
Private dictionary, dvipdfmx segfaults due to a dereferenced NULL
pointer.
I'm suggesting the patch below to fix this.
Best regards,
Marcel
---
texk/dvipdfm-x/cidtype0.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/texk/dvipdfm-x/cidtype0.c b/texk/dvipdfm-x/cidtype0.c
index fd00dd7bd..86a90af28 100644
--- a/texk/dvipdfm-x/cidtype0.c
+++ b/texk/dvipdfm-x/cidtype0.c
@@ -1401,7 +1401,11 @@ CIDFont_type0_t1cdofont (pdf_font *font)
cff_add_string(cffont, "Identity", 1);
cff_dict_update(cffont->topdict, cffont);
- cff_dict_update(cffont->private[0], cffont);
+
+ if (cffont->private && cffont->private[0]) {
+ cff_dict_update(cffont->private[0], cffont);
+ }
+
cff_update_string(cffont);
/* CFF code need to be rewrote... */
--
2.33.1
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