tree 1e71dbfb446e487711b8cba2e250fc9709d737d0
parent c33fb8a5029e86a633b3946d0be4497549f2692d
author Alban Crequy <alban.crequy@collabora.co.uk> 1408360820 +0100
committer chrmhoffmann <chrmhoffmann@gmail.com> 1586074841 +0200

cgroup: reject cgroup names with ' '

commit 71b1fb5c4473a5b1e601d41b109bdfe001ec82e0 upstream.

/proc/<pid>/cgroup contains one cgroup path on each line. If cgroup names are
allowed to contain "\n", applications cannot parse /proc/<pid>/cgroup safely.

Signed-off-by: Alban Crequy <alban.crequy@collabora.co.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
[lizf: Backported to 3.4:
 - adjust context
 - s/name/dentry->d_name.name/]
Signed-off-by: Zefan Li <lizefan@huawei.com>