netdev - Re: [PATCH 0/3] xfrm/compat: syzbot-found fixes

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Message-ID: <20201102082123.GC8805@gauss3.secunet.de>
Date:   Mon, 2 Nov 2020 09:21:23 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Dmitry Safonov <dima@...sta.com>
CC:     <linux-kernel@...r.kernel.org>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Hillf Danton <hdanton@...a.com>, <netdev@...r.kernel.org>,
        <syzbot+a7e701c8385bd8543074@...kaller.appspotmail.com>,
        <syzbot+c43831072e7df506a646@...kaller.appspotmail.com>
Subject: Re: [PATCH 0/3] xfrm/compat: syzbot-found fixes

On Fri, Oct 30, 2020 at 02:25:57AM +0000, Dmitry Safonov wrote:
> WARN_ON() for XFRMA_UNSPEC translation which likely no-one except
> syzkaller uses; properly zerofy tail-padding for 64-bit attribute;
> don't use __GFP_ZERO as the memory is initialized during translation.
> 
> Cc: Steffen Klassert <steffen.klassert@...unet.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: Hillf Danton <hdanton@...a.com>
> Cc: netdev@...r.kernel.org
> 
> Thanks,
>          Dmitry
> 
> Dmitry Safonov (3):
>   xfrm/compat: Translate by copying XFRMA_UNSPEC attribute
>   xfrm/compat: memset(0) 64-bit padding at right place
>   xfrm/compat: Don't allocate memory with __GFP_ZERO

Can you please add 'Fixes' tags to all the patches.

Thanks!