diff --git a/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/Manifest b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/Manifest
index fedaa62edb..c9c5d912ab 100644
--- a/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/Manifest
+++ b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/Manifest
@@ -1,4 +1,6 @@
 DIST mdadm-4.4.tar.gz 619823 BLAKE2B d368681d94e31db2127a1114ad21b76647ee4b62f701705a93ca8482a58ec10d9cd58c5394bb346da0c58339f759fa6168441250a504931e43c0943b74ceef85 SHA512 08682b27f41a230f188d3b61e22e95ff8808b36c8fc2cba1dff443d39a72b35ba2eaf29ed64c7e5583c177fe6b71df983ec9a80a4128d8f07d58b7435d4700f6
 DIST mdadm-4.5.tar.gz 623840 BLAKE2B 6cfa80514b4d51c2e8c5e3275ec3dce1a59c509fd83dbc41d395e47ed59c19df30b0382cf6dc5f3c6faf973296e341bc5e461303b3a0f6ce58da887ef0e8a418 SHA512 2b13cca2ffb8d3d4a80120016f3f646c61afa42c8c074502aaa7b1cd1fa908614f2080e575ab03d21f6fb954bc7663706622bba787af653c51ba3f8f741e8e6f
+DIST mdadm-4.6.tar.gz 625532 BLAKE2B 5a2c523670cc659397b0d36f1026f944e630d422e16d3830bb5d94a03ac84118d99553f7f7d555e3f8cd445908cb2519725bc56d9516de24dd837ecdea0be3bc SHA512 d11eefdffedefecea0786f7ec034305339b7d93d75916eb9501726de0a296dc668c8d0091d1c130805a5d47122ad6d944e46bd723430c15414a360c35d8b06be
 DIST mdadm_4.4-3.debian.tar.xz 88948 BLAKE2B 48d2af9477b420f1bbaffebbeaf2389038f8f58846264fcda5f25d72c64c5543a2cd73eb3fba4c7dc834810e3367f571628bdcc43989724f773fc3789514c765 SHA512 8be55fb40e21ad4026339e8e03df1c4889b66f36d4c41627dd60528dc424e5faa10cb20e8e3fbe737eb9af4705eed10bd4e7017353e773ac73cbeaaa3670d2ff
 DIST mdadm_4.5-5.debian.tar.xz 92056 BLAKE2B da078b4d7f718ff57ad67cc8aaf572cab3e0bf434eb91fb581f71d41d6087f8c807731d1336e35e6cdc3e6dbbdfd1f8f62138b5a60e6de969d04c143b72cfbf9 SHA512 53e31549b3140ad049d76b57a5f5c8de2b46fdaebdac001ceb29e5aaade00e6dae681928eb9bd4572068506a420397e824d43e757a6c628fb21b111a2732e0e5
+DIST mdadm_4.6-1.debian.tar.xz 89472 BLAKE2B f56e2c5f9203b8c5538e15ae6c9d87d26a47efb224eb20204f504c3ebe7c71684a798477b3e38f6cf16d2c66761d0b2d88268557134fcab7c37180bc63e9812b SHA512 8e035346a5cf050d6a8819d93f8f9aac6a3f1477b151e5bef446f05918ed639e7259ced76359aeb2aa309ee738f5170cdb52e5f6ecb8f51d79b1c92bb2b4db42
diff --git a/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.5-r1.ebuild b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.5-r1.ebuild
index 1ee495c90b..7911df8b5b 100644
--- a/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.5-r1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.5-r1.ebuild
@@ -14,7 +14,7 @@ SRC_URI+=" mirror://debian/pool/main/m/mdadm/${PN}_${DEB_PF}.debian.tar.xz"
 LICENSE="GPL-2"
 SLOT="0"
 if [[ ${PV} != *_rc* ]] ; then
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86"
+	KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ppc ppc64 ~riscv ~sparc x86"
 fi
 IUSE="static systemd +udev corosync"
 REQUIRED_USE="static? ( !udev )"
diff --git a/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.6-r1.ebuild b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.6-r1.ebuild
new file mode 100644
index 0000000000..e34c42a6ab
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/sys-fs/mdadm/mdadm-4.6-r1.ebuild
@@ -0,0 +1,118 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic systemd toolchain-funcs udev
+
+DEB_PF="4.6-1"
+DESCRIPTION="Tool for running RAID systems - replacement for the raidtools"
+HOMEPAGE="https://github.com/md-raid-utilities/mdadm https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/"
+SRC_URI="https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/snapshot/${P}.tar.gz"
+SRC_URI+=" mirror://debian/pool/main/m/mdadm/${PN}_${DEB_PF}.debian.tar.xz"
+
+LICENSE="GPL-2"
+SLOT="0"
+if [[ ${PV} != *_rc* ]] ; then
+	KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ppc ppc64 ~riscv ~s390 ~sparc x86"
+fi
+IUSE="static systemd +udev corosync"
+REQUIRED_USE="static? ( !udev )"
+
+BDEPEND="virtual/pkgconfig"
+DEPEND="
+	udev? ( virtual/libudev:= )
+	corosync? ( sys-cluster/corosync )
+"
+RDEPEND="
+	${DEPEND}
+	>=sys-apps/util-linux-2.16
+"
+
+# The tests edit values in /proc and run tests on software raid devices.
+# Thus, they shouldn't be run on systems with active software RAID devices.
+RESTRICT="test"
+
+PATCHES=(
+	"${WORKDIR}/debian/patches/debian"
+)
+
+mdadm_emake() {
+	# We should probably make libdlm into USE flags (bug #573782)
+	local args=(
+		PKG_CONFIG="$(tc-getPKG_CONFIG)"
+		CC="$(tc-getCC)"
+		CWFLAGS="-Wall -fPIE"
+		CXFLAGS="${CFLAGS}"
+		LDFLAGS="${LDFLAGS}"
+		UDEVDIR="$(get_udevdir)"
+		SYSTEMD_DIR="$(systemd_get_systemunitdir)"
+		COROSYNC="$(usev !corosync '-DNO_COROSYNC')"
+		DLM="-DNO_DLM"
+
+		# bug #732276
+		STRIP=
+
+		"$@"
+	)
+
+	emake "${args[@]}"
+}
+
+src_compile() {
+	use static && append-ldflags -static
+
+	# CPPFLAGS won't work for this
+	use udev || append-cflags -DNO_LIBUDEV
+
+	# bug 907082
+	use elibc_musl && append-cppflags -D_LARGEFILE64_SOURCE
+
+	mdadm_emake all
+}
+
+src_test() {
+	mdadm_emake test
+
+	sh ./test || die
+}
+
+src_install() {
+	mdadm_emake DESTDIR="${D}" install install-systemd
+
+	einstalldocs
+
+	insinto /etc
+	newins documentation/mdadm.conf-example mdadm.conf
+	newinitd "${FILESDIR}"/mdadm.rc mdadm
+	newconfd "${FILESDIR}"/mdadm.confd mdadm
+	newinitd "${FILESDIR}"/mdraid.rc mdraid
+	newconfd "${FILESDIR}"/mdraid.confd mdraid
+
+	# From the Debian patchset
+	into /usr
+	dodoc "${WORKDIR}"/debian/local/doc/README.checkarray
+	dosbin "${WORKDIR}"/debian/local/bin/checkarray
+	insinto /etc/default
+	newins "${FILESDIR}"/etc-default-mdadm mdadm
+
+	exeinto /etc/cron.weekly
+	newexe "${FILESDIR}"/mdadm.weekly mdadm
+}
+
+pkg_postinst() {
+	udev_reload
+
+	if ! systemd_is_booted; then
+		if [[ -z ${REPLACING_VERSIONS} ]] ; then
+			# Only inform people the first time they install.
+			elog "If you're not relying on kernel auto-detect of your RAID"
+			elog "devices, you need to add 'mdraid' to your 'boot' runlevel:"
+			elog "	rc-update add mdraid boot"
+		fi
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}