From 5852b85eaa174dfb87ce7a03b9f70e2bffac4ca4 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 29 Jun 2022 15:44:27 +0200
Subject: [PATCH] update common submodule for CVE-2022-2211 fix

$ git shortlog 9e990f3e4530..35467027f657

Laszlo Ersek (1):
      options: fix buffer overflow in get_keys() [CVE-2022-2211]

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit 795d5dfcef77fc54fec4d237bda28571454a6d4e)
---
 common | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Submodule common be09523d..1174b443:
diff --git a/common/options/keys.c b/common/options/keys.c
index 798315c..d27a712 100644
--- a/common/options/keys.c
+++ b/common/options/keys.c
@@ -128,17 +128,23 @@ read_first_line_from_file (const char *filename)
 char **
 get_keys (struct key_store *ks, const char *device, const char *uuid)
 {
-  size_t i, j, len;
+  size_t i, j, nmemb;
   char **r;
   char *s;
 
   /* We know the returned list must have at least one element and not
    * more than ks->nr_keys.
    */
-  len = 1;
-  if (ks)
-    len = MIN (1, ks->nr_keys);
-  r = calloc (len+1, sizeof (char *));
+  nmemb = 1;
+  if (ks && ks->nr_keys > nmemb)
+    nmemb = ks->nr_keys;
+
+  /* make room for the terminating NULL */
+  if (nmemb == (size_t)-1)
+    error (EXIT_FAILURE, 0, _("size_t overflow"));
+  nmemb++;
+
+  r = calloc (nmemb, sizeof (char *));
   if (r == NULL)
     error (EXIT_FAILURE, errno, "calloc");
 
-- 
2.31.1