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Commit b6a6759d authored by Kees Cook's avatar Kees Cook Committed by Tejun Heo
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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: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 1d18c274

kernel/cgroup/cgroup-v1.c

+1 −1
Original line number Diff line number Diff line
@@ -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)