nl80211: fix potential leak in AP start
commit9951ebfcdf
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 <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200221104142.835aba4cdd14.I1923b55ba9989c57e13978f91f40bfdc45e60cbd@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -4795,8 +4795,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
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err = nl80211_parse_he_obss_pd(
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info->attrs[NL80211_ATTR_HE_OBSS_PD],
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¶ms.he_obss_pd);
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if (err)
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return err;
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goto out;
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}
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nl80211_calculate_ap_params(¶ms);
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@ -4818,6 +4817,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
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}
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wdev_unlock(wdev);
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out:
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kfree(params.acl);
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return err;
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