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nl80211: fix potential leak in AP start

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commit 9951ebfcdf2b97dbb28a5d930458424341e61aa2 upstream.

If nl80211_parse_he_obss_pd() fails, we leak the previously
allocated ACL memory. Free it in this case.

Fixes: 796e90f42b ("cfg80211: add support for parsing OBBS_PD attributes")
Signed-off-by: Johannes Berg <[email protected]>
Link: https://lore.kernel.org/r/20200221104142.835aba4cdd14.I1923b55ba9989c57e13978f91f40bfdc45e60cbd@changeid
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johannes Berg 2020-02-21 10:41:43 +01:00 • committed by Greg Kroah-Hartman
commit 813757b782
1 changed files with 2 additions and 2 deletions
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4
net/wireless/nl80211.c
View file

@ -4795,8 +4795,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
err = nl80211_parse_he_obss_pd(
info->attrs[NL80211_ATTR_HE_OBSS_PD],
&params.he_obss_pd);
if (err)
return err;
goto out;
}
nl80211_calculate_ap_params(&params);
@ -4818,6 +4817,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
}
wdev_unlock(wdev);
out:
kfree(params.acl);
return err;