diff --git a/sys-kernel/uek-sources/Manifest b/sys-kernel/uek-sources/Manifest
index 6d8d7aceba..1d5582ce06 100644
--- a/sys-kernel/uek-sources/Manifest
+++ b/sys-kernel/uek-sources/Manifest
@@ -20,6 +20,7 @@ DIST linux-uek-5.15.0-105.125.4.tar.gz 201689155 BLAKE2B 33be4a5270cd793a6a5a4fc
 DIST linux-uek-5.15.0-201.135.2.tar.gz 202625389 BLAKE2B 4f3e138f5f3bbcbaec7d333bfb24a8837549fc122161e9ccc73596e24a85944028c17b1dd75a870e2438e5f8ff801e569a414c12e3ce29acf44cf714f3eddbdb SHA512 2713ea09727e11048de13bbb8f82b69be273c94d04a6a01655bc3887c0039bbd09574efcf1176599f1879262a5dae64ba2a863f1e1465aff6f7c7adafb6a908d
 DIST linux-uek-5.15.0-201.135.4.tar.gz 202681240 BLAKE2B cae67d293a646389bbd4128fdbb87a32ec4f41474afbf684e4c0c05f5580f07a889512945474a33687a4d08c85635dd925975ded65cadad7bef8b83ab3be61ca SHA512 365b19b82341c6eedce78022e34ef8790e1badd1705130b302470f49ec40d1cc33222f6cf4ee8d72f3dd904a15a9780cc7fb582f24a973b0fe92fb99b24316f0
 DIST linux-uek-5.15.0-202.135.1.tar.gz 202776673 BLAKE2B 7c323345c33cead6782cfc0bfd9dcab58a8d2eb45ad69d0c080382bac8f3405747b0a932d0b2269e67065e6fd304cece4c05d692eb00c151ebbb71977a6783eb SHA512 803e453be3d48237def51af998e76e04e1c439d0c8a2095f083e8f1ceceaedd62d98f19fca29d73eb2f0ac51a210c9fddec8efbc60ab63a349c02041ca11392d
+DIST linux-uek-5.15.0-203.135.1.tar.gz 202796594 BLAKE2B 2462f19405085e542adb9a162e06d4790020da1c028a86d6813abfa63e3204e79e444281245bf6fe9a4a211af89aa7f28ef12699460a8c035e40708a00193298 SHA512 b10f31a468d0dd34630294c3ece3b9291fb373d91dc34a9197b2e4407bc211cc5d1149fb32440b82f2f9e5ad4cc1049855c81ec6d488d457969a38b96313115d
 DIST linux-uek-5.15.0-5.70.1.tar.gz 200233058 BLAKE2B 92d639ab0c859013ac8518ad52232cd99a43c696f09b72d36bde2f4992ee6344c7ca1b0147d8ebc5ce101181dc238d24d7a59c6bc082a38067426ad88632fd60 SHA512 e99c363aa0b64489b775b70979001ff2db2743682ec5f18457db407d0dc2707ed02a251efe86071862e2fc4704abe610c0e1543409819ac6018e6a14db42aefe
 DIST linux-uek-5.15.0-6.80.3.tar.gz 200414049 BLAKE2B 191a96349e45fcb70297f37b4f725caee2a27bc6a26f0f18c324e3795754a8c01b6c680ebd3230003e536cd7517f943180b0f82a9c3c0368b13cb35b5ba34be2 SHA512 e60bbf41de17e59b6ad10c7799117031ac80ca9ab1bd4bbcf880ec8c6f3bc2ab1bfecae7578ff348debc9b6c10823683f9b1877bddadb22c29ced46bed30e688
 DIST linux-uek-5.15.0-8.91.3.tar.gz 201202473 BLAKE2B c6a86811a7048d5f8a5d21a0bc5e3772ea0dc3b4b7b954ad45844b666500278c3bea50a2117cd55f66e4d8301b8cd052f0123235451366254b7b5cdc3aa07ea9 SHA512 a76c36f64c9a7acffde3a5e94b7b223a1bb9ae2a48d6914b9ad287e3dd04f276547a053ed2afd10b1d2ff4fa5f5fd3e94ae266ff31d05c4f4242bb2789eccec0
diff --git a/sys-kernel/uek-sources/uek-sources-5.15.0.203.135.1.ebuild b/sys-kernel/uek-sources/uek-sources-5.15.0.203.135.1.ebuild
new file mode 100644
index 0000000000..72b4497400
--- /dev/null
+++ b/sys-kernel/uek-sources/uek-sources-5.15.0.203.135.1.ebuild
@@ -0,0 +1,65 @@
+# Copyright 2021-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+KERNEL_VERSION=$(ver_cut 1-3)
+KERNEL_TRUNK=$(ver_cut 1-2)
+UEK_PATCH_VERSION=$(ver_cut 4-6)
+UEK_VERSION="${KERNEL_VERSION}-${UEK_PATCH_VERSION}"
+
+ETYPE="sources"
+
+K_GENPATCHES_VER="155"
+K_SECURITY_UNSUPPORTED="1"
+CKV="${KERNEL_VERSION}_p${UEK_PATCH_VERSION}"
+
+inherit kernel-2
+detect_version
+detect_arch
+
+DESCRIPTION="Unbreakable Enterprise Kernel (UEK) sources built from Oracle"
+HOMEPAGE="https://github.com/oracle/linux-uek"
+SRC_URI="
+	https://github.com/oracle/linux-uek/archive/refs/tags/v${UEK_VERSION}.tar.gz
+		-> linux-uek-${UEK_VERSION}.tar.gz
+	mirror://gentoo/genpatches-${KERNEL_TRUNK}-${K_GENPATCHES_VER}.base.tar.xz
+	mirror://gentoo/genpatches-${KERNEL_TRUNK}-${K_GENPATCHES_VER}.experimental.tar.xz
+	mirror://gentoo/genpatches-${KERNEL_TRUNK}-${K_GENPATCHES_VER}.extras.tar.xz
+"
+S="${WORKDIR}/linux-uek-${UEK_VERSION}"
+
+LICENSE="GPL-2"
+KEYWORDS="~amd64"
+IUSE="+gentoo experimental"
+
+PATCHES=(
+	"${FILESDIR}"/uek-sources-5.4.17.2136.303.2-O3.patch
+)
+
+src_unpack() {
+	default
+
+	# remove all backup files
+	find . -iname "*~" -print -exec rm {} \; 2>/dev/null
+
+	unpack_set_extraversion
+	unpack_fix_install_path
+
+	env_setup_xmakeopts
+}
+
+src_prepare() {
+	use gentoo && PATCHES+=(
+		"${WORKDIR}"/1500_XATTR_USER_PREFIX.patch
+		"${WORKDIR}"/1510_fs-enable-link-security-restrictions-by-default.patch
+		"${WORKDIR}"/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
+		"${WORKDIR}"/2920_sign-file-patch-for-libressl.patch
+		"${WORKDIR}"/3000_Support-printing-firmware-info.patch
+		"${WORKDIR}"/4567_distro-Gentoo-Kconfig.patch
+	)
+	use experimental && PATCHES+=(
+		"${WORKDIR}"/5010_enable-cpu-optimizations-universal.patch
+	)
+	default
+}