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cfg80211: fix possible memory leak in cfg80211_iter_combinations()

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'limits' is malloced in cfg80211_iter_combinations() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Fixes: 0c317a02ca ("cfg80211: support virtual interfaces with different beacon intervals")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Wei Yongjun 2016-10-17 15:25:16 +00:00 • committed by Johannes Berg
commit 320c975f18
1 changed files with 3 additions and 1 deletions
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4
net/wireless/util.c
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@ -1676,8 +1676,10 @@ int cfg80211_iter_combinations(struct wiphy *wiphy,
if (params->beacon_int_gcd) {
if (c->beacon_int_min_gcd &&
params->beacon_int_gcd < c->beacon_int_min_gcd)
params->beacon_int_gcd < c->beacon_int_min_gcd) {
kfree(limits);
return -EINVAL;
}
if (!c->beacon_int_min_gcd &&
params->beacon_int_different)
goto cont;