diff --git a/mcrypt-CVE-2012-4426.patch b/mcrypt-CVE-2012-4426.patch
new file mode 100644
index 0000000..747f428
--- mcrypt-2.6.8/src/errors.c
+++ mcrypt-2.6.8/src/errors.c
@@ -25,24 +25,24 @@
 
 void err_quit(char *errmsg)
 {
-	fprintf(stderr, errmsg);
+	fprintf(stderr, "%s", errmsg);
 	exit(-1);
 }
 
 void err_warn(char *errmsg)
 {
 	if (quiet <= 1)
-		fprintf(stderr, errmsg);
+		fprintf(stderr, "%s", errmsg);
 }
 
 void err_info(char *errmsg)
 {
 	if (quiet == 0)
-		fprintf(stderr, errmsg);
+		fprintf(stderr, "%s", errmsg);
 }
 
 void err_crit(char *errmsg)
 {
 	if (quiet <= 2)
-		fprintf(stderr, errmsg);
+		fprintf(stderr, "%s", errmsg);
 }

---
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<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
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<div class='path'>path: <a href='/guix/log/?id=610d01418f88b2cb87630d8fddd84763307e3c2c'>root</a>/<a href='/guix/log/doc?id=610d01418f88b2cb87630d8fddd84763307e3c2c'>doc</a>/<a href='/guix/log/doc/package-hello.json?id=610d01418f88b2cb87630d8fddd84763307e3c2c'>package-hello.json</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/doc/package-hello.json?id=610d01418f88b2cb87630d8fddd84763307e3c2c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-04-16 23:41:52 +0200'>2020-04-16</span></td><td><a href='/guix/commit/doc/package-hello.json?id=c9f321e52a99dea93fcc099372ea0167150b9aac'>doc: Document building and installing from JSON files.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi (Invoking guix package): Augment pargraphs for
"--install-from-file".
(Invoking guix build): Document building from JSON files.
* doc/package-hello.json: New file.
* doc/local.mk (EXTRA_DIST): Add it.
</span></span></td><td>Ricardo Wurmus</td></tr>