diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | kernel/cgroup/cgroup.c | 5 |
2 files changed, 5 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index bf6650f41b04..1f40c1135bae 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5246,6 +5246,7 @@ F: block/blk-throttle.c F: include/linux/blk-cgroup.h CONTROL GROUP - CPUSET +M: Waiman Long <longman@redhat.com> M: Zefan Li <lizefan.x@bytedance.com> L: cgroups@vger.kernel.org S: Maintained diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index e4bb5d57f4d1..5f2090d051ac 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -6049,6 +6049,9 @@ struct cgroup *cgroup_get_from_id(u64 id) if (!kn) goto out; + if (kernfs_type(kn) != KERNFS_DIR) + goto put; + rcu_read_lock(); cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv); @@ -6056,7 +6059,7 @@ struct cgroup *cgroup_get_from_id(u64 id) cgrp = NULL; rcu_read_unlock(); - +put: kernfs_put(kn); out: return cgrp; |