ANDROID: wakeup: Add the guard condition for len in pm_get_active_wakeup_sources
Check if the len is not greater than maximum to prevent buffer overflow.
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I575b0a72bb5448b68353408d71fa8b83420c9088
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index e899fda..16d307b 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -811,7 +811,7 @@
rcu_read_lock();
list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
- if (ws->active) {
+ if (ws->active && len < max) {
if (!active)
len += scnprintf(pending_wakeup_source, max,
"Pending Wakeup Sources: ");