netdev - Re: [PATCH net] ipv6: fix panic when forwarding a pkt with no in6 dev

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Message-ID: <636075e9-8902-6909-1a7d-8dfdc395d67d@kernel.org>
Date:   Sun, 10 Apr 2022 19:11:31 -0600
From:   David Ahern <dsahern@...nel.org>
To:     Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        Eric Dumazet <edumazet@...gle.com>,
        kongweibin <kongweibin2@...wei.com>
Cc:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Pavel Begunkov <asml.silence@...il.com>,
        Vasily Averin <vvs@...tuozzo.com>,
        Martin KaFai Lau <kafai@...com>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>, rose.chen@...wei.com,
        liaichun@...wei.com, stable@...r.kernel.org
Subject: Re: [PATCH net] ipv6: fix panic when forwarding a pkt with no in6 dev

On 4/8/22 8:03 AM, Nicolas Dichtel wrote:
> kongweibin reported a kernel panic in ip6_forward() when input interface
> has no in6 dev associated.
> 
> The following tc commands were used to reproduce this panic:
> tc qdisc del dev vxlan100 root
> tc qdisc add dev vxlan100 root netem corrupt 5%
> 
> CC: stable@...r.kernel.org
> Fixes: ccd27f05ae7b ("ipv6: fix 'disable_policy' for fwd packets")
> Reported-by: kongweibin <kongweibin2@...wei.com>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> ---
> 

Reviewed-by: David Ahern <dsahern@...nel.org>