Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.6 02/31] act_ipt: fix a bind refcnt leak | Date | Wed, 6 Jul 2016 18:18:52 -0700 |
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4.6-stable review patch. If anyone has any objections, please let me know.
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From: WANG Cong <xiyou.wangcong@gmail.com>
[ Upstream commit d15eccea69b96a5116169688dcc9baf6d1ce2751 ]
And avoid calling tcf_hash_check() twice.
Fixes: a57f19d30b2d ("net sched: ipt action fix late binding") Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/sched/act_ipt.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -121,10 +121,13 @@ static int __tcf_ipt_init(struct tc_acti } td = (struct xt_entry_target *)nla_data(tb[TCA_IPT_TARG]); - if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size) + if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size) { + if (exists) + tcf_hash_release(a, bind); return -EINVAL; + } - if (!tcf_hash_check(tn, index, a, bind)) { + if (!exists) { ret = tcf_hash_create(tn, index, est, a, sizeof(*ipt), bind, false); if (ret)
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