[DragonFlyBSD - Bug #2847] rtadvd: improper padding of DNSSL option

bugtracker-admin at leaf.dragonflybsd.org bugtracker-admin at leaf.dragonflybsd.org
Wed Oct 21 02:09:24 PDT 2015


Issue #2847 has been updated by sepherosa.


Patch pushed.

On Tue, Oct 20, 2015 at 7:10 AM,
<bugtracker-admin at leaf.dragonflybsd.org> wrote:
> Issue #2847 has been reported by cmusser.
>
> ----------------------------------------
> Bug #2847: rtadvd: improper padding of DNSSL option
> http://bugs.dragonflybsd.org/issues/2847
>
> * Author: cmusser
> * Status: New
> * Priority: Normal
> * Assignee:
> * Category: Networking
> * Target version: 4.2.x
> ----------------------------------------
> The rtadvd program, recently refreshed from FreeBSD, mishandles DNSSL
> options, which need to be padded to an eight byte boundary. The code
> correctly calculates the padding length, then fails to increment the
> pointer used to write the packet data by this amount. As a result, all
> subsequent option data gets written into the wrong place, making the
> rest of the packet junk.
>
> The attached patch (for the master branch) fixes this.
>
> ---Files--------------------------------
> rtadvd_config.c.diff (795 Bytes)
>
>
> --
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-- 
Tomorrow Will Never Die

----------------------------------------
Bug #2847: rtadvd: improper padding of DNSSL option
http://bugs.dragonflybsd.org/issues/2847#change-12717

* Author: cmusser
* Status: New
* Priority: Normal
* Assignee: 
* Category: Networking
* Target version: 4.2.x
----------------------------------------
The rtadvd program, recently refreshed from FreeBSD, mishandles DNSSL
options, which need to be padded to an eight byte boundary. The code
correctly calculates the padding length, then fails to increment the
pointer used to write the packet data by this amount. As a result, all
subsequent option data gets written into the wrong place, making the
rest of the packet junk.

The attached patch (for the master branch) fixes this.

---Files--------------------------------
rtadvd_config.c.diff (795 Bytes)


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