diff options
| author | Amulya Y <ayarlagadda@nvidia.com> | 2018-04-05 14:30:07 -0700 |
|---|---|---|
| committer | Winnie Hsu <whsu@nvidia.com> | 2018-04-19 10:57:28 -0700 |
| commit | ba7727c3c66d5bd035ed8df69c74a613a6a7f9da (patch) | |
| tree | a744b40ad3bd1548f9d618e6d325f555402ede66 /kernel | |
| parent | 9616bef14596d892b6f9c1292c15fe4758c51873 (diff) | |
cgroup: Correct the address format specifier
The format specifier %p can leak kernel addresses
while not valuing the kptr_restrict system
settings.The fix is designed to use %pK instead
of %p, which also evaluates whether
kptr_restrict is set.
Bug 1823317
Bug 1935735
Change-Id: I19dc309e7f5341663add987f5d0b47ee32e1be50
Signed-off-by: Gagan Grover <ggrover@nvidia.com>
Signed-off-by: Amulya Yarlagadda <ayarlagadda@nvidia.com>
Reviewed-on: http://git-master/r/1260110
(cherry picked from commit d018ef6518a7527562bedae1eab86838cfcc0570)
Reviewed-on: https://git-master.nvidia.com/r/1690299
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: Winnie Hsu <whsu@nvidia.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cgroup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 05b36e7b9e6b..1e2c3588b990 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -5449,7 +5449,7 @@ static int cgroup_css_links_read(struct cgroup *cont, struct css_set *cg = link->cg; struct task_struct *task; int count = 0; - seq_printf(seq, "css_set %p\n", cg); + seq_printf(seq, "css_set %pK\n", cg); list_for_each_entry(task, &cg->tasks, cg_list) { if (count++ > MAX_TASKS_SHOWN_PER_CSS) { seq_puts(seq, " ...\n"); |