Messages in this thread | | | Subject | Re: [PATCH v4 1/2] netfilter: Terminate rule eval if protocol=IPv6 and ipv6 module is disabled | From | Leonardo Bras <> | Date | Tue, 03 Sep 2019 13:46:50 -0300 |
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On Fri, 2019-08-30 at 22:58 +0200, Florian Westphal wrote: > Leonardo Bras <leonardo@linux.ibm.com> wrote: > > If IPv6 is disabled on boot (ipv6.disable=1), but nft_fib_inet ends up > > dealing with a IPv6 packet, it causes a kernel panic in > > fib6_node_lookup_1(), crashing in bad_page_fault. > > > > The panic is caused by trying to deference a very low address (0x38 > > in ppc64le), due to ipv6.fib6_main_tbl = NULL. > > BUG: Kernel NULL pointer dereference at 0x00000038 > > > > The kernel panic was reproduced in a host that disabled IPv6 on boot and > > have to process guest packets (coming from a bridge) using it's ip6tables. > > > > Terminate rule evaluation when packet protocol is IPv6 but the ipv6 module > > is not loaded. > > > > Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com> > > Acked-by: Florian Westphal <fw@strlen.de> >
Hello Pablo,
Any trouble with this patch? I could see the other* one got applied, but not this one. *(The other did not get acked, so i released it alone as v5)
Is there any fix I need to do in this one?
Best regards, Leonardo Bras [unhandled content-type:application/pgp-signature] | |