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SubjectRe: [PATCH v2] tun: bail out from tun_get_user() if the skb is empty
On Wed, Sep 27, 2017 at 3:26 PM, 'Eric Dumazet' via syzkaller
<syzkaller@googlegroups.com> wrote:
> On Wed, Sep 27, 2017 at 5:58 AM, Alexander Potapenko <glider@google.com> wrote:
>> On Wed, Sep 27, 2017 at 2:45 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
>>> On Wed, 2017-09-27 at 05:42 -0700, Eric Dumazet wrote:
>>>
>>>> Or something cleaner to avoid copy/paste and focus on proper
>>>> skb->data[0] access and meaning.
>> By the way I'm wondering if this is the only place where skb->data is
>> being accessed.
>> Isn't eth_type_trans() under IFF_TAP also touching it? Then we need to
>> check the size earlier.
>
> It is already checked.
Indeed, thanks.
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