netdev - Re: [PATCH] NFC: fix attrs checks in netlink interface

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Message-ID: <20180604042900.GB31498@zurbaran.ger.intel.com>
Date:   Mon, 4 Jun 2018 06:29:00 +0200
From:   Samuel Ortiz <sameo@...ux.intel.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dmitry Vyukov <dvyukov@...gle.com>,
        Kostya Serebryany <kcc@...gle.com>
Subject: Re: [PATCH] NFC: fix attrs checks in netlink interface

Hi Andrey,

On Thu, Apr 12, 2018 at 06:56:56PM +0200, Andrey Konovalov wrote:
> nfc_genl_deactivate_target() relies on the NFC_ATTR_TARGET_INDEX
> attribute being present, but doesn't check whether it is actually
> provided by the user. Same goes for nfc_genl_fw_download() and
> NFC_ATTR_FIRMWARE_NAME.
> 
> This patch adds appropriate checks.
> 
> Found with syzkaller.
> 
> Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
> ---
>  net/nfc/netlink.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
Thanks, applied to nfc-next.

Cheers,
Samuel.