[PATCH 2/5] font: Assign null_font to unknown_glyph

[Zhang Boyang <zhangboyang.id@gmail.com>]

Like glyphs in ascii_font_glyph[], assign null_font to
unknown_glyph->font in order to prevent grub_font_get_*() from
dereferencing NULL pointer.

Signed-off-by: Zhang Boyang <zhangboyang.id@gmail.com>
---
 grub-core/font/font.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/grub-core/font/font.c b/grub-core/font/font.c
index 19a47f873..674043d0d 100644
--- a/grub-core/font/font.c
+++ b/grub-core/font/font.c
@@ -177,6 +177,7 @@ grub_font_loader_init (void)
   unknown_glyph->offset_x = 0;
   unknown_glyph->offset_y = -3;
   unknown_glyph->device_width = 8;
+  unknown_glyph->font = &null_font;
   grub_memcpy (unknown_glyph->bitmap,
 	       unknown_glyph_bitmap, sizeof (unknown_glyph_bitmap));
 
-- 
2.30.2