diff --git a/fs/fsopen.c b/fs/fsopen.c
index ae19e5136598..9d5a7a22b529 100644
--- a/fs/fsopen.c
+++ b/fs/fsopen.c
@@ -190,6 +190,9 @@ SYSCALL_DEFINE3(fspick, int, dfd, const char __user *, path, unsigned int, flags
 	ret = -EINVAL;
 	if (target.mnt->mnt_root != target.dentry)
 		goto err_path;
+	/* kernel-internal superblocks are nobody's to reconfigure */
+	if (target.dentry->d_sb->s_flags & SB_NOUSER)
+		goto err_path;
 
 	fc = fs_context_for_reconfigure(target.dentry, 0, 0);
 	if (IS_ERR(fc)) {