diff options
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 5fd8b021785a..d886ae255e40 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -4352,6 +4352,11 @@ SYSCALL_DEFINE3(fsmount, int, fs_fd, unsigned int, flags, ret = PTR_ERR(newmount.mnt); goto err_unlock; } + if (newmount.mnt->mnt_sb->s_flags & SB_NOUSER) { + mntput(newmount.mnt); + ret = -EINVAL; + goto err_unlock; + } newmount.dentry = dget(fc->root); newmount.mnt->mnt_flags = mnt_flags; |