--- /dev/null
+From vegard.nossum@oracle.com Wed Feb 21 11:57:46 2024
+From: Vegard Nossum <vegard.nossum@oracle.com>
+Date: Mon, 5 Feb 2024 11:39:59 +0100
+Subject: Documentation/arch/ia64/features.rst: fix kernel-feat directive
+To: stable@vger.kernel.org
+Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Jonathan Corbet <corbet@lwn.net>, Jani Nikula <jani.nikula@intel.com>, Sasha Levin <sashal@kernel.org>, Mauro Carvalho Chehab <mchehab@kernel.org>, Vegard Nossum <vegard.nossum@oracle.com>, Justin Forbes <jforbes@fedoraproject.org>
+Message-ID: <20240205103959.281871-1-vegard.nossum@oracle.com>
+
+From: Vegard Nossum <vegard.nossum@oracle.com>
+
+My mainline commit c48a7c44a1d0 ("docs: kernel_feat.py: fix potential
+command injection") contains a bug which can manifests like this when
+building the documentation:
+
+ Sphinx parallel build error:
+ UnboundLocalError: local variable 'fname' referenced before assignment
+ make[2]: *** [Documentation/Makefile:102: htmldocs] Error 2
+
+However, this only appears when there exists a '.. kernel-feat::'
+directive that points to a non-existent file, which isn't the case in
+mainline.
+
+When this commit was backported to stable 6.6, it didn't change
+Documentation/arch/ia64/features.rst since ia64 was removed in 6.7 in
+commit cf8e8658100d ("arch: Remove Itanium (IA-64) architecture"). This
+lead to the build failure seen above -- but only in stable kernels.
+
+This patch fixes the backport and should only be applied to kernels where
+Documentation/arch/ia64/features.rst exists and commit c48a7c44a1d0 has
+also been applied.
+
+A second patch will follow to fix kernel_feat.py in mainline so that it
+doesn't error out when the '.. kernel-feat::' directive points to a
+nonexistent file.
+
+Link: https://lore.kernel.org/all/ZbkfGst991YHqJHK@fedora64.linuxtx.org/
+Fixes: e961f8c6966a ("docs: kernel_feat.py: fix potential command injection") # stable 6.6.15
+Reported-by: Justin Forbes <jforbes@fedoraproject.org>
+Reported-y: Salvatore Bonaccorso <carnil@debian.org>
+Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ Documentation/arch/ia64/features.rst | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/Documentation/arch/ia64/features.rst
++++ b/Documentation/arch/ia64/features.rst
+@@ -1,3 +1,3 @@
+ .. SPDX-License-Identifier: GPL-2.0
+
+-.. kernel-feat:: $srctree/Documentation/features ia64
++.. kernel-feat:: features ia64