diff --git a/Dockerfile b/Dockerfile
index 12c8ae7..74dbf61 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 # syntax=docker/dockerfile:1
 
-ARG ALPINE_VERSION=3.20
+ARG ALPINE_VERSION=3.21
 ARG S6_VERSION=2.2.0.3
 
-ARG SAMBA_VERSION=4.19.9
+ARG SAMBA_VERSION=4.20.6
 ARG WSDD2_VERSION=b676d8ac8f1aef792cb0761fb68a0a589ded3207
 
 FROM --platform=${BUILDPLATFORM} crazymax/alpine-s6:${ALPINE_VERSION}-${S6_VERSION} AS wsdd2-src
@@ -13,9 +13,11 @@ ADD "https://github.com/Netgear/wsdd2.git#${WSDD2_VERSION}" .
 
 # TODO: do cross-compilation in this stage to build wsdd2
 FROM crazymax/alpine-s6:${ALPINE_VERSION}-${S6_VERSION} AS wsdd2
-RUN apk --update --no-cache add linux-headers gcc make musl-dev
+RUN apk --update --no-cache add linux-headers gcc make musl-dev patch
 WORKDIR /src
 COPY --from=wsdd2-src /src /src
+COPY patches/wsdd2 /tmp/wsdd2-patches
+RUN patch -p1 < /tmp/wsdd2-patches/0001-fix-msghdr-initialization.patch
 RUN make DESTDIR=/dist install
 
 FROM crazymax/alpine-s6:${ALPINE_VERSION}-${S6_VERSION}
@@ -24,7 +26,7 @@ RUN apk --update --no-cache add \
     bash \
     coreutils \
     jq \
-    samba=${SAMBA_VERSION}-r0 \
+    samba=${SAMBA_VERSION}-r1 \
     shadow \
     tzdata \
     yq \
diff --git a/patches/wsdd2/0001-fix-msghdr-initialization.patch b/patches/wsdd2/0001-fix-msghdr-initialization.patch
new file mode 100644
index 0000000..ca3d435
--- /dev/null
+++ b/patches/wsdd2/0001-fix-msghdr-initialization.patch
@@ -0,0 +1,31 @@
+From 0098d86d2998cff056ec19e734e17bf99d5314ae Mon Sep 17 00:00:00 2001
+From: CrazyMax <1951866+crazy-max@users.noreply.github.com>
+Date: Fri, 27 Dec 2024 15:40:27 +0100
+Subject: [PATCH] fix msghdr initialization
+
+---
+ wsdd2.c | 10 +++++++++-
+ 1 file changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/wsdd2.c b/wsdd2.c
+index 4f91f6e..1590561 100644
+--- a/wsdd2.c
++++ b/wsdd2.c
+@@ -543,7 +543,15 @@ static int netlink_recv(struct endpoint *ep)
+ 	char buf[PAGE_SIZE];
+ 	struct sockaddr_nl sa;
+ 	struct iovec iov = { buf, sizeof buf };
+-	struct msghdr msg = { &sa, sizeof sa, &iov, 1, NULL, 0, 0 };
++	struct msghdr msg;
++	memset(&msg, 0, sizeof(msg));
++	msg.msg_name = &sa;
++	msg.msg_namelen = sizeof(sa);
++	msg.msg_iov = &iov;
++	msg.msg_iovlen = 1;
++	msg.msg_control = NULL;
++	msg.msg_controllen = 0;
++	msg.msg_flags = 0;
+ 	ssize_t msglen = recvmsg(ep->sock, &msg, 0);
+
+ 	DEBUG(2, W, "%s: %zd bytes", __func__, msglen);
+--