proc: make oom adjustment files user read-only
Make oom_adj and oom_score_adj user read-only.
Bug: 19636629
Change-Id: I055bb172d5b4d3d856e25918f3c5de8edf31e4a3
Signed-off-by: Rom Lemarchand <romlem@google.com>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8e65446..648ee62 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2911,8 +2911,9 @@
ONE("cgroup", S_IRUGO, proc_cgroup_show),
#endif
ONE("oom_score", S_IRUGO, proc_oom_score),
- REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations),
- REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
+ INF("oom_score", S_IRUGO, proc_oom_score),
+ REG("oom_adj", S_IRUSR, proc_oom_adj_operations),
+ REG("oom_score_adj", S_IRUSR, proc_oom_score_adj_operations),
#ifdef CONFIG_AUDITSYSCALL
REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations),
REG("sessionid", S_IRUGO, proc_sessionid_operations),
@@ -3300,8 +3301,8 @@
ONE("cgroup", S_IRUGO, proc_cgroup_show),
#endif
ONE("oom_score", S_IRUGO, proc_oom_score),
- REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations),
- REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
+ REG("oom_adj", S_IRUSR, proc_oom_adj_operations),
+ REG("oom_score_adj", S_IRUSR, proc_oom_score_adj_operations),
#ifdef CONFIG_AUDITSYSCALL
REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations),
REG("sessionid", S_IRUGO, proc_sessionid_operations),