linux-kernel - Re: [PATCH v2 1/2] nfp: flower: Fix a potential leak in nfp_tunnel_add_shared

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Message-ID: <20220217075940.GA4665@corigine.com>
Date:   Thu, 17 Feb 2022 08:59:41 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        "David S. Miller" <davem@...emloft.net>,
        John Hurley <john.hurley@...ronome.com>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        oss-drivers@...igine.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2 1/2] nfp: flower: Fix a potential leak in
 nfp_tunnel_add_shared_mac()

On Fri, Feb 11, 2022 at 04:53:56PM -0800, Jakub Kicinski wrote:
> On Thu, 10 Feb 2022 23:34:52 +0100 Christophe JAILLET wrote:
> > ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX)
> > inclusive.
> > So NFP_MAX_MAC_INDEX (0xff) is a valid id.
> > 
> > In order for the error handling path to work correctly, the 'invalid'
> > value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range,
> > inclusive.
> > 
> > So set it to -1.
> > 
> > Fixes: 20cce8865098 ("nfp: flower: enable MAC address sharing for offloadable devs")
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> 
> This patch is a fix and the other one is refactoring. They can't be
> in the same series because they need to go to different trees. Please
> repost the former with [PATCH net] and ~one week later the latter with
> [PATCH net-next].

Thanks Jakub.

Christophe, please let me know if you'd like me to handle reposting
the patches as described by Jakub.