grub2/0297-font-Remove-grub_font_dup_glyph.patch
Robbie Harwood f2a26f5bbb Font CVE fixes
Resolves: CVE-2022-2601
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
2022-11-03 19:34:00 +00:00

42 lines
1.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zhang Boyang <zhangboyang.id@gmail.com>
Date: Fri, 5 Aug 2022 02:13:29 +0800
Subject: [PATCH] font: Remove grub_font_dup_glyph()
Remove grub_font_dup_glyph() since nobody is using it since 2013, and
I'm too lazy to fix the integer overflow problem in it.
Signed-off-by: Zhang Boyang <zhangboyang.id@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
(cherry picked from commit 25ad31c19c331aaa2dbd9bd2b2e2655de5766a9d)
(cherry picked from commit ad950e1e033318bb50222ed268a6dcfb97389035)
---
grub-core/font/font.c | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/grub-core/font/font.c b/grub-core/font/font.c
index 1fa181d4ca..a115a63b0c 100644
--- a/grub-core/font/font.c
+++ b/grub-core/font/font.c
@@ -1055,20 +1055,6 @@ grub_font_get_glyph_with_fallback (grub_font_t font, grub_uint32_t code)
return best_glyph;
}
-#if 0
-static struct grub_font_glyph *
-grub_font_dup_glyph (struct grub_font_glyph *glyph)
-{
- static struct grub_font_glyph *ret;
- ret = grub_malloc (sizeof (*ret) + (glyph->width * glyph->height + 7) / 8);
- if (!ret)
- return NULL;
- grub_memcpy (ret, glyph, sizeof (*ret)
- + (glyph->width * glyph->height + 7) / 8);
- return ret;
-}
-#endif
-
/* FIXME: suboptimal. */
static void
grub_font_blit_glyph (struct grub_font_glyph *target,