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cgroups: censor kernel pointer in debug files 

As found in grsecurity, this avoids exposing a kernel pointer through
the cgroup debug entries.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Kees Cook 2017-02-25 01:56:48 -08:00 committed by Tejun Heo
parent 1d18c2747f
commit b6a6759daf
1 changed files with 1 additions and 1 deletions
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2
kernel/cgroup/cgroup-v1.c
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@ -1329,7 +1329,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
struct task_struct *task;
int count = 0;
seq_printf(seq, "css_set %p\n", cset);
seq_printf(seq, "css_set %pK\n", cset);
list_for_each_entry(task, &cset->tasks, cg_list) {
if (count++ > MAX_TASKS_SHOWN_PER_CSS)