diff --git a/dbus-1.12.20-CVE-2022-42011.patch b/dbus-1.12.20-CVE-2022-42011.patch
new file mode 100644
index 0000000..d0a5510
--- /dev/null
+++ b/dbus-1.12.20-CVE-2022-42011.patch
@@ -0,0 +1,57 @@
+From 3b8a7aff228770f4f7b478db606b10cceacea875 Mon Sep 17 00:00:00 2001
+From: Simon McVittie <smcv@collabora.com>
+Date: Mon, 12 Sep 2022 13:14:18 +0100
+Subject: [PATCH] dbus-marshal-validate: Validate length of arrays of
+ fixed-length items
+
+This fast-path previously did not check that the array was made up
+of an integer number of items. This could lead to assertion failures
+and out-of-bounds accesses during subsequent message processing (which
+assumes that the message has already been validated), particularly after
+the addition of _dbus_header_remove_unknown_fields(), which makes it
+more likely that dbus-daemon will apply non-trivial edits to messages.
+
+Thanks: Evgeny Vereshchagin
+Fixes: e61f13cf "Bug 18064 - more efficient validation for fixed-size type arrays"
+Resolves: https://gitlab.freedesktop.org/dbus/dbus/-/issues/413
+Resolves: CVE-2022-42011
+Signed-off-by: Simon McVittie <smcv@collabora.com>
+(cherry picked from commit 079bbf16186e87fb0157adf8951f19864bc2ed69)
+(cherry picked from commit b9e6a7523085a2cfceaffca7ba1ab4251f12a984)
+---
+ dbus/dbus-marshal-validate.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/dbus/dbus-marshal-validate.c b/dbus/dbus-marshal-validate.c
+index ae68414dd..7d0d6cf72 100644
+--- a/dbus/dbus-marshal-validate.c
++++ b/dbus/dbus-marshal-validate.c
+@@ -503,13 +503,24 @@ validate_body_helper (DBusTypeReader       *reader,
+                  */ 
+                 if (dbus_type_is_fixed (array_elem_type))
+                   {
++                    /* Note that fixed-size types all have sizes equal to
++                     * their alignments, so this is really the item size. */
++                    alignment = _dbus_type_get_alignment (array_elem_type);
++                    _dbus_assert (alignment == 1 || alignment == 2 ||
++                                  alignment == 4 || alignment == 8);
++
++                    /* Because the alignment is a power of 2, this is
++                     * equivalent to: (claimed_len % alignment) != 0,
++                     * but avoids slower integer division */
++                    if ((claimed_len & (alignment - 1)) != 0)
++                      return DBUS_INVALID_ARRAY_LENGTH_INCORRECT;
++
+                     /* bools need to be handled differently, because they can
+                      * have an invalid value
+                      */
+                     if (array_elem_type == DBUS_TYPE_BOOLEAN)
+                       {
+                         dbus_uint32_t v;
+-                        alignment = _dbus_type_get_alignment (array_elem_type);
+ 
+                         while (p < array_end)
+                           {
+-- 
+GitLab
+
diff --git a/dbus.spec b/dbus.spec
index dd7bc67..104d6ea 100644
--- a/dbus.spec
+++ b/dbus.spec
@@ -45,6 +45,8 @@ Source8: dbus-systemd-sysusers.conf
 Patch0: 0001-tools-Use-Python3-for-GetAllMatchRules.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=2133647
 Patch1: dbus-1.12.20-CVE-2022-42010.patch
+# https://bugzilla.redhat.com/show_bug.cgi?id=2133641
+Patch2: dbus-1.12.20-CVE-2022-42011.patch
 
 BuildRequires: autoconf-archive
 BuildRequires: libtool
@@ -452,6 +454,7 @@ systemctl --no-reload --global preset dbus-daemon.service &>/dev/null || :
 %changelog
 * Tue Oct 18 2022 David King <amigadave@amigadave.com> - 1:1.12.20-7
 - Fix CVE-2022-42010 (#2133647)
+- Fix CVE-2022-42011 (#2133641)
 
 * Wed Aug 17 2022 David King <amigadave@amigadave.com> - 1:1.12.20-6
 - Override upstream sysusers.d confguration (#2118226)