netdev - RE: [PATCH net-next] net: enetc: fix array underflow in error handling code

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Date:   Fri, 9 Apr 2021 12:46:09 +0000
From:   Claudiu Manoil <claudiu.manoil@....com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
CC:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: RE: [PATCH net-next] net: enetc: fix array underflow in error
 handling code

>-----Original Message-----
>From: Dan Carpenter <dan.carpenter@...cle.com>
[...]
>Subject: [PATCH net-next] net: enetc: fix array underflow in error handling
>code
>
>This loop will try to unmap enetc_unmap_tx_buff[-1] and crash.
>
>Fixes: 9d2b68cc108d ("net: enetc: add support for XDP_REDIRECT")
>Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Reviewed-by: Claudiu Manoil <claudiu.manoil@....com>