From: Po Lu <luangruo@yahoo.com>
Date: Sat, 6 Jan 2024 07:24:58 +0000 (+0800)
Subject: Properly parse TTC tables with digital signatures
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=2f59052602e71fb818dd5d671be119793864e712;p=emacs.git

Properly parse TTC tables with digital signatures

* src/sfnt.c (sfnt_read_ttc_header): Don't inadvertently
overwrite first two offsets while reading the digital signature.
---

diff --git a/src/sfnt.c b/src/sfnt.c
index aa8b49a9ecd..36240f4cdff 100644
--- a/src/sfnt.c
+++ b/src/sfnt.c
@@ -6195,7 +6195,7 @@ sfnt_read_ttc_header (int fd)
   size = (SFNT_ENDOF (struct sfnt_ttc_header, ul_dsig_offset,
 		      uint32_t)
 	  - offsetof (struct sfnt_ttc_header, ul_dsig_tag));
-  rc = read (fd, &ttc->ul_dsig_offset, size);
+  rc = read (fd, &ttc->ul_dsig_tag, size);
   if (rc == -1 || rc < size)
     {
       xfree (ttc);
@@ -20631,8 +20631,8 @@ main (int argc, char **argv)
       return 1;
     }
 
-#define FANCY_PPEM 44
-#define EASY_PPEM  44
+#define FANCY_PPEM 14
+#define EASY_PPEM  14
 
   interpreter = NULL;
   head = sfnt_read_head_table (fd, font);