netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Patrick McHardy <kaber@trash.net>
To: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "David S. Miller" <davem@davemloft.net>, NETDEV <netdev@vger.kernel.org>
Subject: Re: v3 [PATCH net-next 5/7] ipv4: Check return of dev_set_allmulti
Date: Mon, 07 Jul 2008 13:22:04 +0200	[thread overview]
Message-ID: <4871FC5C.9030106@trash.net> (raw)
In-Reply-To: <48718172.8070404@cn.fujitsu.com>

Wang Chen wrote:
>  	case VIFF_TUNNEL:
>  		dev = ipmr_new_tunnel(vifc);
>  		if (!dev)
>  			return -ENOBUFS;
> +		err = dev_set_allmulti(dev, 1);
> +		if (err) {
> +			dev_close(dev);
> +			return err;
> +		}

ipmr_new_tunnel creates a new tunnel device that you're not removing.

>  		break;
>  	case 0:
>  		dev = ip_dev_find(&init_net, vifc->vifc_lcl_addr.s_addr);
>  		if (!dev)
>  			return -EADDRNOTAVAIL;
>  		dev_put(dev);
> +		err = dev_set_allmulti(dev, 1);
> +		if (err)
> +			return err;

Also looks like a use after free, but again, one that is
already present without your patch.

  reply	other threads:[~2008-07-07 11:22 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-07  2:31 v3 [PATCH net-next 0/7] Check return of dev_set_promiscuity/allmulti Wang Chen
2008-07-07  2:33 ` v3 [PATCH net-next 1/7] af_packet: " Wang Chen
2008-07-07  2:34 ` v3 [PATCH net-next 2/7] bonding: " Wang Chen
2008-07-07  2:35 ` v3 [PATCH net-next 3/7] bridge: Check return of dev_set_promiscuity Wang Chen
2008-07-07  2:36 ` v3 [PATCH net-next 4/7] ipv6: Check return of dev_set_allmulti Wang Chen
2008-07-07 11:20   ` Patrick McHardy
2008-07-07 13:17     ` Wang Chen
2008-07-07 13:26       ` Patrick McHardy
2008-07-07 14:45         ` Wang Chen
2008-07-07  2:37 ` v3 [PATCH net-next 5/7] ipv4: " Wang Chen
2008-07-07 11:22   ` Patrick McHardy [this message]
2008-07-08  9:34     ` Wang Chen
2008-07-14  1:14       ` Wang Chen
2008-07-08  9:41     ` Wang Chen
2008-07-14  1:05       ` Wang Chen
2008-07-07  2:38 ` v3 [PATCH net-next 6/7] macvlan: " Wang Chen
2008-07-07  2:38 ` v3 [PATCH net-next 7/7] 8021q: Check return of dev_set_promiscuity/allmulti Wang Chen
  -- strict thread matches above, loose matches on Subject: below --
2008-07-01  3:19 [PATCH net-next 0/7] " Wang Chen
2008-07-01  3:27 ` v2 [PATCH net-next 5/7] ipv4: Check return of dev_set_allmulti Wang Chen
2008-07-01  9:40   ` Patrick McHardy
2008-07-02  8:24     ` v3 " Wang Chen
2008-07-02 12:55       ` Patrick McHardy

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4871FC5C.9030106@trash.net \
    --to=kaber@trash.net \
    --cc=davem@davemloft.net \
    --cc=netdev@vger.kernel.org \
    --cc=wangchen@cn.fujitsu.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).