diff options
| -rw-r--r-- | fs/namespace.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index c53a0ee748c6..f44e5448c8a0 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -5401,6 +5401,8 @@ SYSCALL_DEFINE4(listmount, const struct mnt_id_req __user *, req, scoped_guard(rwsem_read, &namespace_sem) ret = do_listmount(ns, kreq.mnt_id, kreq.param, kmnt_ids, nr_mnt_ids, (flags & LISTMOUNT_REVERSE)); + if (ret <= 0) + return ret; if (copy_to_user(mnt_ids, kmnt_ids, ret * sizeof(*mnt_ids))) return -EFAULT; |