netfilter: nfnetlink_acct: return -EINVAL if object name is empty
If user-space tries to create accounting object with an empty name, then return -EINVAL. Reported-by: Michael Zintakis <michael.zintakis@googlemail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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@ -49,6 +49,8 @@ nfnl_acct_new(struct sock *nfnl, struct sk_buff *skb,
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return -EINVAL;
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return -EINVAL;
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acct_name = nla_data(tb[NFACCT_NAME]);
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acct_name = nla_data(tb[NFACCT_NAME]);
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if (strlen(acct_name) == 0)
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return -EINVAL;
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list_for_each_entry(nfacct, &nfnl_acct_list, head) {
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list_for_each_entry(nfacct, &nfnl_acct_list, head) {
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if (strncmp(nfacct->name, acct_name, NFACCT_NAME_MAX) != 0)
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if (strncmp(nfacct->name, acct_name, NFACCT_NAME_MAX) != 0)
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