diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c
index d146c5360d..db159660ff 100644
--- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c
@@ -1303,7 +1303,7 @@ static int client_receive_message(
                 if (cmsg->cmsg_level == SOL_SOCKET &&
                     cmsg->cmsg_type == SO_TIMESTAMP &&
                     cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))
-                        triple_timestamp_from_realtime(&t, timeval_load((struct timeval*) CMSG_DATA(cmsg)));
+                        triple_timestamp_from_realtime(&t, timeval_load((struct timeval*) (void *) CMSG_DATA(cmsg)));
         }
 
         if (client->transaction_id != (message->transaction_id & htobe32(0x00ffffff)))
diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c
index 88f830aa8e..5dcd2eb2d0 100644
--- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c
+++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c
@@ -621,7 +621,7 @@ static int dhcp6_lease_parse_message(
                                 return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL),
                                                               "Received information refresh time option with an invalid length (%zu).", optlen);
 
-                        irt = unaligned_read_be32((be32_t *) optval) * USEC_PER_SEC;
+                        irt = unaligned_read_be32(optval) * USEC_PER_SEC;
                         break;
                 }
         }
diff --git a/src/libnm-systemd-shared/src/basic/fd-util.c b/src/libnm-systemd-shared/src/basic/fd-util.c
index f73f095e30..61a5bb78cb 100644
--- a/src/libnm-systemd-shared/src/basic/fd-util.c
+++ b/src/libnm-systemd-shared/src/basic/fd-util.c
@@ -479,7 +479,7 @@ void cmsg_close_all(struct msghdr *mh) {
 
         CMSG_FOREACH(cmsg, mh)
                 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS)
-                        close_many((int*) CMSG_DATA(cmsg), (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int));
+                        close_many((int*) ((void*) CMSG_DATA(cmsg)), (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int));
 }
 
 bool fdname_is_valid(const char *s) {
diff --git a/src/libnm-systemd-shared/src/basic/hashmap.c b/src/libnm-systemd-shared/src/basic/hashmap.c
index adea63acb7..d0b950e0d0 100644
--- a/src/libnm-systemd-shared/src/basic/hashmap.c
+++ b/src/libnm-systemd-shared/src/basic/hashmap.c
@@ -374,7 +374,7 @@ static void get_hash_key(uint8_t hash_key[HASH_KEY_SIZE], bool reuse_is_ok) {
 }
 
 static struct hashmap_base_entry* bucket_at(HashmapBase *h, unsigned idx) {
-        return (struct hashmap_base_entry*)
+        return (struct hashmap_base_entry*) (void *)
                 ((uint8_t*) storage_ptr(h) + idx * hashmap_type_info[h->type].entry_size);
 }
 
diff --git a/src/libnm-systemd-shared/src/fundamental/sha256.c b/src/libnm-systemd-shared/src/fundamental/sha256.c
index ae5b6c25f4..b4c36ab384 100644
--- a/src/libnm-systemd-shared/src/fundamental/sha256.c
+++ b/src/libnm-systemd-shared/src/fundamental/sha256.c
@@ -133,7 +133,7 @@ uint8_t *sha256_finish_ctx(struct sha256_ctx *ctx, uint8_t resbuf[static SHA256_
                 if (UNALIGNED_P(resbuf))
                         memcpy(resbuf + i * sizeof(uint32_t), (uint32_t[]) { SWAP(ctx->H[i]) }, sizeof(uint32_t));
                 else
-                        ((uint32_t *) resbuf)[i] = SWAP(ctx->H[i]);
+                        ((uint32_t *) (void *) resbuf)[i] = SWAP(ctx->H[i]);
 
         return resbuf;
 }