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author | Ruchi Kandoi <kandoiruchi@google.com> | 2015-11-10 10:53:55 -0800 |
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committer | Ruchi Kandoi <kandoiruchi@google.com> | 2015-11-10 19:05:35 +0000 |
commit | 24dc742abc1fa4f953b42750ec08e3ec4586de42 (patch) | |
tree | cbefd80b3e2ff0e6d4da8cf3c62ac836dee970be | |
parent | 4f4f7cc39a76fb84ca54631caa9d06dfc12b489d (diff) |
wakeup: Add the guard condition for len in pm_get_active_wakeup_sourcesv3.18/topic/aosp
Check if the len is not greater than maximum to prevent buffer overflow.
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I575b0a72bb5448b68353408d71fa8b83420c9088
-rw-r--r-- | drivers/base/power/wakeup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index f1cf53abd32b..e730f64cffcb 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c @@ -677,7 +677,7 @@ void pm_get_active_wakeup_sources(char *pending_wakeup_source, size_t max) 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: "); |