netdev - Re: [PATCH net] af_key: fix kernel-infoleak vs XFRMA_ALG

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Message-ID: <ZAcghyIW77Zo0taS@gauss3.secunet.de>
Date:   Tue, 7 Mar 2023 12:31:19 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Eric Dumazet <edumazet@...gle.com>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Sabrina Dubroca <sd@...asysnail.net>, <netdev@...r.kernel.org>,
        <eric.dumazet@...il.com>, syzbot <syzkaller@...glegroups.com>
Subject: Re: [PATCH net] af_key: fix kernel-infoleak vs XFRMA_ALG_COMP

On Tue, Mar 07, 2023 at 12:28:47PM +0100, Eric Dumazet wrote:
> On Tue, Mar 7, 2023 at 11:43 AM Herbert Xu <herbert@...dor.apana.org.au> wrote:
> >
> > On Tue, Mar 07, 2023 at 10:02:31AM +0000, Eric Dumazet wrote:
> > > When copy_to_user_state_extra() copies to netlink skb
> > > x->calg content, it expects calg was fully initialized.
> > >
> > > We must make sure all unused bytes are cleared at
> > > allocation side.
> >
> > This has already been fixed:
> >
> > https://lore.kernel.org/all/Y+RH4Fv8yj0g535y@gondor.apana.org.au/
> 
> Ah, I thought this was for a different issue.
> 
> I do not see this patch in net tree yet ?

It is still in the ipsec tree. It will go upstream
this week.

Thanks!