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| author | Johannes Berg | 2013-10-25 11:16:58 +0200 |
|---|---|---|
| committer | Johannes Berg | 2013-11-25 16:50:07 +0100 |
| commit | 7fa322c878d70e38675f50e17acdce7fa3f5ac8c (patch) | |
| tree | 2e25ac0a6badf54e809a708d54146d1b8144d9ca | |
| parent | 9fe271af7d4de96471c5aaee2f4d0d1576050497 (diff) | |
nl80211: check nla_nest_start() return value
Coverity pointed out that we might dereference NULL later
if nla_nest_start() returns a failure. This isn't really
true since we'd bomb out before, but we should check the
return value directly, so do that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/wireless/nl80211.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index f1370ed9f498..e20c27ff0f14 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -11094,6 +11094,8 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, struct nlattr *reasons; reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); + if (!reasons) + goto free_msg; if (wakeup->disconnect && nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) |