Merge "Fix permission of zram writeback and idle file" into main am: 640e32478f

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3370238

Change-Id: I662f6ebf85c8b21f6fab46c1a23bef78c6cca187
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 8ffac20..6771c5f 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -1128,9 +1128,9 @@
 
     # System server manages zram writeback
     chown root system /sys/block/zram0/idle
-    chmod 0664 /sys/block/zram0/idle
+    chmod 0220 /sys/block/zram0/idle
     chown root system /sys/block/zram0/writeback
-    chmod 0664 /sys/block/zram0/writeback
+    chmod 0220 /sys/block/zram0/writeback
 
     # to access F2FS sysfs on dm-<num> directly
     mkdir /dev/sys/fs/by-name 0755 system system