Re: memory leak in net/sched/ipt.c?

From: Herbert Xu
Date: Wed Mar 23 2005 - 06:33:34 EST


Yichen Xie <yxie@xxxxxxxxxxxxxxx> wrote:
> Is the memory block allocated on line 315 leaked every time tcp_ipt_dump
> is called?

It seems to be. This patch should free it.

Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

BTW, please report networking bugs to netdev@xxxxxxxxxxxx

Thanks,
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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--
===== net/sched/ipt.c 1.14 vs edited =====
--- 1.14/net/sched/ipt.c 2005-02-07 16:39:40 +11:00
+++ edited/net/sched/ipt.c 2005-03-23 22:28:13 +11:00
@@ -284,10 +284,12 @@
tm.lastuse = jiffies_to_clock_t(jiffies - p->tm.lastuse);
tm.expires = jiffies_to_clock_t(p->tm.expires);
RTA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm);
+ kfree(t);
return skb->len;

rtattr_failure:
skb_trim(skb, b - skb->data);
+ kfree(t);
return -1;
}

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