From: Andrew Morton <akpm@linux-foundation.org>
To: netdev@vger.kernel.org
Cc: bugzilla-daemon@bugzilla.kernel.org,
bugme-daemon@bugzilla.kernel.org, hannes@stressinduktion.org
Subject: Re: [Bugme-new] [Bug 14330] New: Kernel
Date: Tue, 13 Oct 2009 19:48:06 -0700 [thread overview]
Message-ID: <20091013194806.e1403ca9.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-14330-10286@http.bugzilla.kernel.org/>
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Tue, 6 Oct 2009 00:16:31 GMT bugzilla-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=14330
>
> URL: NULL pointer dereference with arp_notify and no ip
> address
> Summary: Kernel
> Product: Networking
> Version: 2.5
> Kernel Version: 2.6.30.8-64.fc11.x86_64
> Platform: All
> OS/Version: Linux
> Tree: Fedora
> Status: NEW
> Severity: normal
> Priority: P1
> Component: IPV4
> AssignedTo: shemminger@linux-foundation.org
> ReportedBy: hannes@stressinduktion.org
> Regression: No
>
>
> A NULL pointer dereference happens if arp_notify is enabled, no ip address is
> set
> and the mac address changes on an interface.
>
> Steps to reproduce:
> sysctl -w net.ipv4.conf.all.arp_notify=1
> ip a f dev eth0
> ip l s eth0 a 02:00:00:00:00:00
>
> It seems that in function inetdev_event (net/ipv4/devinet.c:1081) the
> dereference of in_dev->ifa_list->ifa_address blows up because in_dev->ifa_list
> is NULL.
next parent reply other threads:[~2009-10-14 2:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-14330-10286@http.bugzilla.kernel.org/>
2009-10-14 2:48 ` Andrew Morton [this message]
2009-10-14 3:43 ` [Bugme-new] [Bug 14330] New: Kernel David Miller
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