diff --git a/migration/fd.c b/migration/fd.c
index 39a52e5c90..c07030f715 100644
--- a/migration/fd.c
+++ b/migration/fd.c
@@ -22,6 +22,7 @@
 #include "migration.h"
 #include "monitor/monitor.h"
 #include "io/channel-file.h"
+#include "io/channel-socket.h"
 #include "io/channel-util.h"
 #include "options.h"
 #include "trace.h"
@@ -95,6 +96,13 @@ void fd_start_incoming_migration(const char *fdname, Error **errp)
     }
 
     if (migrate_multifd()) {
+        if (fd_is_socket(fd)) {
+            error_setg(errp,
+                       "Multifd migration to a socket FD is not supported");
+            object_unref(ioc);
+            return;
+        }
+
         file_create_incoming_channels(ioc, errp);
     } else {
         qio_channel_set_name(ioc, "migration-fd-incoming");
diff --git a/migration/file.c b/migration/file.c
index ddde0ca818..b6e8ba13f2 100644
--- a/migration/file.c
+++ b/migration/file.c
@@ -15,6 +15,7 @@
 #include "file.h"
 #include "migration.h"
 #include "io/channel-file.h"
+#include "io/channel-socket.h"
 #include "io/channel-util.h"
 #include "options.h"
 #include "trace.h"
@@ -58,6 +59,12 @@ bool file_send_channel_create(gpointer opaque, Error **errp)
     int fd = fd_args_get_fd();
 
     if (fd && fd != -1) {
+        if (fd_is_socket(fd)) {
+            error_setg(errp,
+                       "Multifd migration to a socket FD is not supported");
+            goto out;
+        }
+
         ioc = qio_channel_file_new_dupfd(fd, errp);
     } else {
         ioc = qio_channel_file_new_path(outgoing_args.fname, flags, 0, errp);
diff --git a/migration/migration.c b/migration/migration.c
index 644e073b7d..f60bd371e3 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -166,9 +166,9 @@ static bool transport_supports_seeking(MigrationAddress *addr)
     }
 
     /*
-     * At this point, the user might not yet have passed the file
-     * descriptor to QEMU, so we cannot know for sure whether it
-     * refers to a plain file or a socket. Let it through anyway.
+     * At this point QEMU has not yet fetched the fd passed in by the
+     * user, so we cannot know for sure whether it refers to a plain
+     * file or a socket. Let it through anyway and check at fd.c.
      */
     if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) {
         return addr->u.socket.type == SOCKET_ADDRESS_TYPE_FD;