Copied from Debian.

From: Carlos Garcia Campos <cgarcia@igalia.com>
Date: Mon, 19 Nov 2018 12:33:07 +0100
Subject: ft: Use FT_Done_MM_Var instead of free when available in
 cairo_ft_apply_variations

Fixes a crash when using freetype >= 2.9

[This is considered to be security-sensitive because WebKitGTK+ sets its
own memory allocator, which is not compatible with system free(), making
this a remotely triggerable denial of service or memory corruption.]

Origin: upstream, commit:90e85c2493fdfa3551f202ff10282463f1e36645
Bug: https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5
Bug-Debian: https://bugs.debian.org/916389
Bug-CVE: CVE-2018-19876
---
 src/cairo-ft-font.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cairo-ft-font.c b/src/cairo-ft-font.c
index 325dd61..981973f 100644
--- a/src/cairo-ft-font.c
+++ b/src/cairo-ft-font.c
@@ -2393,7 +2393,11 @@ skip:
 done:
         free (coords);
         free (current_coords);
+#if HAVE_FT_DONE_MM_VAR
+        FT_Done_MM_Var (face->glyph->library, ft_mm_var);
+#else
         free (ft_mm_var);
+#endif
     }
 }
 
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<tr><td><span title='2021-12-22 10:53:19 +0100'>2021-12-22</span></td><td><a href='/guix/commit/tests/keys/signing-key.pub?id=9ebc9ca070a21ba0aeb3f61202a8071bb250ccc8'>tests: Move keys into ./tests/keys/ and add a third ed25519 key.</a><span class='msg-avail'>...<span class='msg-tooltip'>The third key will be used in an upcoming commit.

Rename public keys to .pub.

* guix/tests/gnupg.scm (%ed25519-3-public-key-file): New variable.
(%ed25519-3-secret-key-file): New variable.
(%ed25519-2-public-key-file): Renamed from %ed25519bis-public-key-file.
(%ed25519-2-secret-key-file): Renamed from %ed25519bis-secret-key-file.
* tests/keys/ed25519-3.key: New file.
* tests/keys/ed25519-3.sec: New file.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Attila Lendvai</td></tr>