From: David Miller <davem@davemloft.net>
To: ms@dev.tdt.de
Cc: andrew.hendry@gmail.com, khc@pm.waw.pl, isdn@linux-pingi.de,
edumazet@google.com, linux-x25@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] wan/hdlc_x25: fix skb handling
Date: Thu, 04 Apr 2019 17:32:40 -0700 (PDT) [thread overview]
Message-ID: <20190404.173240.1338878948110207179.davem@davemloft.net> (raw)
In-Reply-To: <20190403050118.12785-2-ms@dev.tdt.de>
From: Martin Schiller <ms@dev.tdt.de>
Date: Wed, 3 Apr 2019 07:01:16 +0200
> /* X.25 to LAPB */
> switch (skb->data[0]) {
> case X25_IFACE_DATA: /* Data to be transmitted */
> - skb_pull(skb, 1);
> - if ((result = lapb_data_request(dev, skb)) != LAPB_OK)
> - dev_kfree_skb(skb);
> - return NETDEV_TX_OK;
> + skbn = skb_copy(skb, GFP_ATOMIC);
> + skb_pull(skbn, 1);
> + skb_reset_network_header(skbn);
> + if ((result = lapb_data_request(dev, skbn)) != LAPB_OK)
> + dev_kfree_skb(skbn);
This leaks 'skb'.
No way I'm applying this stuff.
next prev parent reply other threads:[~2019-04-05 0:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 5:01 [PATCH 1/4] net/x25: call skb_reset_network_header where needed Martin Schiller
2019-04-03 5:01 ` [PATCH 2/4] wan/hdlc_x25: fix skb handling Martin Schiller
2019-04-05 0:32 ` David Miller [this message]
2019-04-05 6:56 ` Martin Schiller
2019-04-05 19:15 ` David Miller
2019-04-08 6:07 ` Martin Schiller
2019-04-03 5:01 ` [PATCH 3/4] isdn/i4l/isdn_x25iface: call skb_reset_network_header Martin Schiller
2019-04-03 5:01 ` [PATCH 4/4] isdn/i4l: Call notifiers before and after changing device type Martin Schiller
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