linux-kernel - Re: [PATCH][next] net/mlx5e: Fix potential null pointer dereference

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Date:   Mon, 28 Sep 2020 16:22:33 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Roi Dayan <roid@...lanox.com>, Vlad Buslov <vladbu@...dia.com>,
        Ariel Levkovich <lariel@...lanox.com>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] net/mlx5e: Fix potential null pointer dereference

On Fri, 2020-09-25 at 11:49 -0500, Gustavo A. R. Silva wrote:
> Calls to kzalloc() and kvzalloc() should be null-checked
> in order to avoid any potential failures. In this case,
> a potential null pointer dereference.
> 
> Fix this by adding null checks for _parse_attr_ and _flow_
> right after allocation.
> 
> Addresses-Coverity-ID: 1497154 ("Dereference before null check")
> Fixes: c620b772152b ("net/mlx5: Refactor tc flow attributes
> structure")
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> ---
> 

Applied to net-next-mlx5.
Thanks.