[Bugme-new] [Bug 13550] New: NULL pointer dereference in br_nf_pre_routing_finish+0x2a

[bugzilla-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=13550

           Summary: NULL pointer dereference in
                    br_nf_pre_routing_finish+0x2a
           Product: Networking
           Version: 2.5
    Kernel Version: 2.6.29.3-60
          Platform: All
        OS/Version: Linux
              Tree: Fedora
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Netfilter/Iptables
        AssignedTo: networking_netfilter-iptables at kernel-bugs.osdl.org
        ReportedBy: pp at ee.oulu.fi
        Regression: No


Created an attachment (id=21937)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=21937)
Oops dump from serial console

Bridging with kvm-based virtual machines has resulted in the attached null
pointer dereference for quite some time (fc9/2.6.27 or so), crash happens
within a few hours-day. 
Bridge interfaces are being tcpdumped all the time, which may be related.

Forward rules are simple:

:FORWARD ACCEPT [0:0]
-I FORWARD -m physdev --physdev-is-bridged -j ACCEPT 
-A FORWARD -j REJECT --reject-with icmp-host-prohibited

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