netdev - Re: [PATCH net] net: bridge: fix a null pointer dereference in br

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Date:   Mon, 5 Jun 2017 22:28:03 -0700
From:   Roopa Prabhu <roopa@...ulusnetworks.com>
To:     Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "stephen@...workplumber.org" <stephen@...workplumber.org>,
        garsilva@...eddedor.com, bridge@...ts.linux-foundation.org
Subject: Re: [PATCH net] net: bridge: fix a null pointer dereference in br_afspec

On Mon, Jun 5, 2017 at 3:26 PM, Nikolay Aleksandrov
<nikolay@...ulusnetworks.com> wrote:
> We might call br_afspec() with p == NULL which is a valid use case if
> the action is on the bridge device itself, but the bridge tunnel code
> dereferences the p pointer without checking, so check if p is null
> first.
>
> Reported-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
> Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
> Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>

Acked-by: Roopa Prabhu <roopa@...ulusnetworks.com>

Thanks Nikolay.