diff --git a/include/os/freebsd/zfs/sys/zfs_ctldir.h b/include/os/freebsd/zfs/sys/zfs_ctldir.h
index 14d75df33df0..f0a98a7def8d 100644
--- a/include/os/freebsd/zfs/sys/zfs_ctldir.h
+++ b/include/os/freebsd/zfs/sys/zfs_ctldir.h
@@ -40,7 +40,7 @@ extern "C" {
 	((zdp)->z_zfsvfs->z_ctldir != NULL))
 #define	zfs_show_ctldir(zdp)	\
 	(zfs_has_ctldir(zdp) && \
-	((zdp)->z_zfsvfs->z_show_ctldir))
+	((zdp)->z_zfsvfs->z_show_ctldir == ZFS_SNAPDIR_VISIBLE))
 
 void zfsctl_create(zfsvfs_t *);
 void zfsctl_destroy(zfsvfs_t *);
diff --git a/include/os/freebsd/zfs/sys/zfs_vfsops_os.h b/include/os/freebsd/zfs/sys/zfs_vfsops_os.h
index 3e54f3e846f7..c9619b0555cd 100644
--- a/include/os/freebsd/zfs/sys/zfs_vfsops_os.h
+++ b/include/os/freebsd/zfs/sys/zfs_vfsops_os.h
@@ -76,7 +76,7 @@ struct zfsvfs {
 	list_t		z_all_znodes;	/* all vnodes in the fs */
 	kmutex_t	z_znodes_lock;	/* lock for z_all_znodes */
 	struct zfsctl_root	*z_ctldir;	/* .zfs directory pointer */
-	boolean_t	z_show_ctldir;	/* expose .zfs in the root dir */
+	uint_t		z_show_ctldir;	/* how to expose .zfs in the root dir */
 	boolean_t	z_issnap;	/* true if this is a snapshot */
 	boolean_t	z_use_fuids;	/* version allows fuids */
 	boolean_t	z_replay;	/* set during ZIL replay */
diff --git a/include/os/linux/zfs/sys/zfs_ctldir.h b/include/os/linux/zfs/sys/zfs_ctldir.h
index ad16ab5e4444..8f18cda2952f 100644
--- a/include/os/linux/zfs/sys/zfs_ctldir.h
+++ b/include/os/linux/zfs/sys/zfs_ctldir.h
@@ -45,7 +45,7 @@
 	(ZTOZSB(zdp)->z_ctldir != NULL))
 #define	zfs_show_ctldir(zdp)	\
 	(zfs_has_ctldir(zdp) && \
-	(ZTOZSB(zdp)->z_show_ctldir))
+	(ZTOZSB(zdp)->z_show_ctldir == ZFS_SNAPDIR_VISIBLE))
 
 extern int zfs_expire_snapshot;
 
diff --git a/include/os/linux/zfs/sys/zfs_vfsops_os.h b/include/os/linux/zfs/sys/zfs_vfsops_os.h
index b4d5db21f5e5..7717e7479ab5 100644
--- a/include/os/linux/zfs/sys/zfs_vfsops_os.h
+++ b/include/os/linux/zfs/sys/zfs_vfsops_os.h
@@ -110,7 +110,7 @@ struct zfsvfs {
 	kmutex_t	z_znodes_lock;	/* lock for z_all_znodes */
 	arc_prune_t	*z_arc_prune;	/* called by ARC to prune caches */
 	struct inode	*z_ctldir;	/* .zfs directory inode */
-	boolean_t	z_show_ctldir;	/* expose .zfs in the root dir */
+	uint_t		z_show_ctldir;	/* how to expose .zfs in the root dir */
 	boolean_t	z_issnap;	/* true if this is a snapshot */
 	boolean_t	z_use_fuids;	/* version allows fuids */
 	boolean_t	z_replay;	/* set during ZIL replay */
diff --git a/include/sys/zfs_ioctl.h b/include/sys/zfs_ioctl.h
index 8b50168cfa0e..b0e9d34bb409 100644
--- a/include/sys/zfs_ioctl.h
+++ b/include/sys/zfs_ioctl.h
@@ -57,6 +57,7 @@ extern "C" {
  */
 #define	ZFS_SNAPDIR_HIDDEN		0
 #define	ZFS_SNAPDIR_VISIBLE		1
+#define	ZFS_SNAPDIR_DISABLED		2
 
 /*
  * Property values for snapdev
diff --git a/man/man4/zfs.4 b/man/man4/zfs.4
index 6840dc3171b9..5a47cbbe22c2 100644
--- a/man/man4/zfs.4
+++ b/man/man4/zfs.4
@@ -1570,6 +1570,15 @@ which have the
 .Em no_root_squash
 option set.
 .
+.It Sy zfs_snapshot_no_setuid Ns = Ns Sy 0 Ns | Ns 1 Pq int
+Whether to disable
+.Em setuid/setgid
+support for snapshot mounts triggered by access to the
+.Sy .zfs/snapshot
+directory by setting the
+.Em nosuid
+mount option.
+.
 .It Sy zfs_flags Ns = Ns Sy 0 Pq int
 Set additional debugging flags.
 The following flags may be bitwise-ored together:
diff --git a/man/man7/zfsconcepts.7 b/man/man7/zfsconcepts.7
index 1be3d961c3d7..1d2dff7e4865 100644
--- a/man/man7/zfsconcepts.7
+++ b/man/man7/zfsconcepts.7
@@ -71,7 +71,7 @@ File system snapshots can be accessed under the
 directory in the root of the file system.
 Snapshots are automatically mounted on demand and may be unmounted at regular
 intervals.
-The visibility of the
+The availability and visibility of the
 .Pa .zfs
 directory can be controlled by the
 .Sy snapdir
diff --git a/man/man7/zfsprops.7 b/man/man7/zfsprops.7
index 4ea91bb9008a..06e2797968ea 100644
--- a/man/man7/zfsprops.7
+++ b/man/man7/zfsprops.7
@@ -1848,11 +1848,11 @@ Controls whether the volume snapshot devices under
 are hidden or visible.
 The default value is
 .Sy hidden .
-.It Sy snapdir Ns = Ns Sy hidden Ns | Ns Sy visible
+.It Sy snapdir Ns = Ns Sy disabled Ns | Ns Sy hidden Ns | Ns Sy visible
 Controls whether the
 .Pa .zfs
-directory is hidden or visible in the root of the file system as discussed in
-the
+directory is disabled, hidden or visible in the root of the file system as
+discussed in the
 .Sx Snapshots
 section of
 .Xr zfsconcepts 7 .
diff --git a/module/os/freebsd/zfs/zfs_vnops_os.c b/module/os/freebsd/zfs/zfs_vnops_os.c
index 5dbca10a3ee3..548984548de2 100644
--- a/module/os/freebsd/zfs/zfs_vnops_os.c
+++ b/module/os/freebsd/zfs/zfs_vnops_os.c
@@ -774,6 +774,8 @@ zfs_lookup(vnode_t *dvp, const char *nm, vnode_t **vpp,
 	}
 	if (zfs_has_ctldir(zdp) && strcmp(nm, ZFS_CTLDIR_NAME) == 0) {
 		zfs_exit(zfsvfs, FTAG);
+		if (zfsvfs->z_show_ctldir == ZFS_SNAPDIR_DISABLED)
+			return (SET_ERROR(ENOENT));
 		if ((cnp->cn_flags & ISLASTCN) != 0 && nameiop != LOOKUP)
 			return (SET_ERROR(ENOTSUP));
 		error = zfsctl_root(zfsvfs, cnp->cn_lkflags, vpp);
diff --git a/module/os/linux/zfs/zfs_ctldir.c b/module/os/linux/zfs/zfs_ctldir.c
index a8b25b2bd8a5..8a42a075cd25 100644
--- a/module/os/linux/zfs/zfs_ctldir.c
+++ b/module/os/linux/zfs/zfs_ctldir.c
@@ -111,6 +111,7 @@ static krwlock_t zfs_snapshot_lock;
  */
 int zfs_expire_snapshot = ZFSCTL_EXPIRE_SNAPSHOT;
 static int zfs_admin_snapshot = 0;
+static int zfs_snapshot_no_setuid = 0;
 
 typedef struct {
 	char		*se_name;	/* full snapshot name */
@@ -807,7 +808,9 @@ zfsctl_root_lookup(struct inode *dip, const char *name, struct inode **ipp,
 	if ((error = zfs_enter(zfsvfs, FTAG)) != 0)
 		return (error);
 
-	if (strcmp(name, "..") == 0) {
+	if (zfsvfs->z_show_ctldir == ZFS_SNAPDIR_DISABLED) {
+		*ipp = NULL;
+	} else if (strcmp(name, "..") == 0) {
 		*ipp = dip->i_sb->s_root->d_inode;
 	} else if (strcmp(name, ZFS_SNAPDIR_NAME) == 0) {
 		*ipp = zfsctl_inode_lookup(zfsvfs, ZFSCTL_INO_SNAPDIR,
@@ -1097,9 +1100,9 @@ zfsctl_snapshot_mount(struct path *path, int flags)
 	zfsvfs_t *zfsvfs;
 	zfsvfs_t *snap_zfsvfs;
 	zfs_snapentry_t *se;
-	char *full_name, *full_path;
+	char *full_name, *full_path, *options;
 	char *argv[] = { "/usr/bin/env", "mount", "-i", "-t", "zfs", "-n",
-	    NULL, NULL, NULL };
+	    "-o", NULL, NULL, NULL, NULL };
 	char *envp[] = { NULL };
 	int error;
 	struct path spath;
@@ -1113,6 +1116,7 @@ zfsctl_snapshot_mount(struct path *path, int flags)
 
 	full_name = kmem_zalloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP);
 	full_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
+	options = kmem_zalloc(7, KM_SLEEP);
 
 	error = zfsctl_snapshot_name(zfsvfs, dname(dentry),
 	    ZFS_MAX_DATASET_NAME_LEN, full_name);
@@ -1128,6 +1132,9 @@ zfsctl_snapshot_mount(struct path *path, int flags)
 	    zfsvfs->z_vfs->vfs_mntpoint ? zfsvfs->z_vfs->vfs_mntpoint : "",
 	    dname(dentry));
 
+	snprintf(options, 7, "%s",
+	    zfs_snapshot_no_setuid ? "nosuid" : "suid");
+
 	/*
 	 * Multiple concurrent automounts of a snapshot are never allowed.
 	 * The snapshot may be manually mounted as many times as desired.
@@ -1150,8 +1157,9 @@ zfsctl_snapshot_mount(struct path *path, int flags)
 	 * value from call_usermodehelper() will be (exitcode << 8 + signal).
 	 */
 	dprintf("mount; name=%s path=%s\n", full_name, full_path);
-	argv[6] = full_name;
-	argv[7] = full_path;
+	argv[7] = options;
+	argv[8] = full_name;
+	argv[9] = full_path;
 	error = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
 	if (error) {
 		if (!(error & MOUNT_BUSY << 8)) {
@@ -1312,3 +1320,7 @@ MODULE_PARM_DESC(zfs_admin_snapshot, "Enable mkdir/rmdir/mv in .zfs/snapshot");
 
 module_param(zfs_expire_snapshot, int, 0644);
 MODULE_PARM_DESC(zfs_expire_snapshot, "Seconds to expire .zfs/snapshot");
+
+module_param(zfs_snapshot_no_setuid, int, 0644);
+MODULE_PARM_DESC(zfs_snapshot_no_setuid,
+	"Disable setuid/setgid for automounts in .zfs/snapshot");
diff --git a/module/os/linux/zfs/zfs_dir.c b/module/os/linux/zfs/zfs_dir.c
index 1eeabe53d23c..6e74f4208007 100644
--- a/module/os/linux/zfs/zfs_dir.c
+++ b/module/os/linux/zfs/zfs_dir.c
@@ -415,6 +415,9 @@ zfs_dirlook(znode_t *dzp, char *name, znode_t **zpp, int flags,
 			*zpp = zp;
 		rw_exit(&dzp->z_parent_lock);
 	} else if (zfs_has_ctldir(dzp) && strcmp(name, ZFS_CTLDIR_NAME) == 0) {
+		if (ZTOZSB(dzp)->z_show_ctldir == ZFS_SNAPDIR_DISABLED) {
+			return (SET_ERROR(ENOENT));
+		}
 		ip = zfsctl_root(dzp);
 		*zpp = ITOZ(ip);
 	} else {
diff --git a/module/os/linux/zfs/zfs_vfsops.c b/module/os/linux/zfs/zfs_vfsops.c
index a6d1202e424f..5becbeb87a03 100644
--- a/module/os/linux/zfs/zfs_vfsops.c
+++ b/module/os/linux/zfs/zfs_vfsops.c
@@ -1692,6 +1692,11 @@ zfs_vget(struct super_block *sb, struct inode **ipp, fid_t *fidp)
 	    (object == ZFSCTL_INO_ROOT || object == ZFSCTL_INO_SNAPDIR)) {
 		*ipp = zfsvfs->z_ctldir;
 		ASSERT(*ipp != NULL);
+
+		if (zfsvfs->z_show_ctldir == ZFS_SNAPDIR_DISABLED) {
+			return (SET_ERROR(ENOENT));
+		}
+
 		if (object == ZFSCTL_INO_SNAPDIR) {
 			VERIFY(zfsctl_root_lookup(*ipp, "snapshot", ipp,
 			    0, kcred, NULL, NULL) == 0);
diff --git a/module/os/linux/zfs/zpl_ctldir.c b/module/os/linux/zfs/zpl_ctldir.c
index 56a30be5110c..fe64bc710387 100644
--- a/module/os/linux/zfs/zpl_ctldir.c
+++ b/module/os/linux/zfs/zpl_ctldir.c
@@ -57,6 +57,10 @@ zpl_root_iterate(struct file *filp, struct dir_context *ctx)
 	zfsvfs_t *zfsvfs = ITOZSB(file_inode(filp));
 	int error = 0;
 
+	if (zfsvfs->z_show_ctldir == ZFS_SNAPDIR_DISABLED) {
+		return (SET_ERROR(ENOENT));
+	}
+
 	if ((error = zpl_enter(zfsvfs, FTAG)) != 0)
 		return (error);
 
diff --git a/module/zcommon/zfs_prop.c b/module/zcommon/zfs_prop.c
index 20cc0dffc27e..93d56fdd224a 100644
--- a/module/zcommon/zfs_prop.c
+++ b/module/zcommon/zfs_prop.c
@@ -238,6 +238,7 @@ zfs_prop_init(void)
 	static const zprop_index_t snapdir_table[] = {
 		{ "hidden",	ZFS_SNAPDIR_HIDDEN },
 		{ "visible",	ZFS_SNAPDIR_VISIBLE },
+		{ "disabled",	ZFS_SNAPDIR_DISABLED },
 		{ NULL }
 	};
 
@@ -436,7 +437,7 @@ zfs_prop_init(void)
 	    "COMPRESS", compress_table, sfeatures);
 	zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN,
 	    PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
-	    "hidden | visible", "SNAPDIR", snapdir_table, sfeatures);
+	    "disabled | hidden | visible", "SNAPDIR", snapdir_table, sfeatures);
 	zprop_register_index(ZFS_PROP_SNAPDEV, "snapdev", ZFS_SNAPDEV_HIDDEN,
 	    PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 	    "hidden | visible", "SNAPDEV", snapdev_table, sfeatures);
diff --git a/module/zfs/dsl_prop.c b/module/zfs/dsl_prop.c
index 99f931cd8632..5c5b2428c482 100644
--- a/module/zfs/dsl_prop.c
+++ b/module/zfs/dsl_prop.c
@@ -698,6 +698,10 @@ dsl_prop_set_iuv(objset_t *mos, uint64_t zapobj, const char *propname,
 		    *(uint64_t *)value == ZFS_REDUNDANT_METADATA_NONE)
 			iuv = B_TRUE;
 		break;
+	case ZFS_PROP_SNAPDIR:
+		if (*(uint64_t *)value == ZFS_SNAPDIR_DISABLED)
+			iuv = B_TRUE;
+		break;
 	default:
 		break;
 	}
diff --git a/tests/zfs-tests/include/properties.shlib b/tests/zfs-tests/include/properties.shlib
index 3dfb295a40df..5a39eb3f36f5 100644
--- a/tests/zfs-tests/include/properties.shlib
+++ b/tests/zfs-tests/include/properties.shlib
@@ -30,7 +30,7 @@ typeset -a logbias_prop_vals=('latency' 'throughput')
 typeset -a primarycache_prop_vals=('all' 'none' 'metadata')
 typeset -a redundant_metadata_prop_vals=('all' 'most' 'some' 'none')
 typeset -a secondarycache_prop_vals=('all' 'none' 'metadata')
-typeset -a snapdir_prop_vals=('hidden' 'visible')
+typeset -a snapdir_prop_vals=('disabled' 'hidden' 'visible')
 typeset -a sync_prop_vals=('standard' 'always' 'disabled')
 
 typeset -a fs_props=('compress' 'checksum' 'recsize'