linux-kernel - Re: [PATCH] kobject: fix suppressing modalias in uevents delivered over netlink

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Message-ID: <20171219084819.GB15010@kroah.com>
Date:   Tue, 19 Dec 2017 09:48:19 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Tariq Toukan <tariqt@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Komali Katari <komali@...lsio.com>,
        "Luis R. Rodriguez" <mcgrof@...nel.org>,
        Casey Leedom <leedom@...lsio.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kobject: fix suppressing modalias in uevents delivered
 over netlink

On Wed, Dec 13, 2017 at 03:21:22PM -0800, Dmitry Torokhov wrote:
> The commit 4a336a23d619 ("kobject: copy env blob in one go") optimized
> constructing uevent data for delivery over netlink by using the raw
> environment buffer, instead of reconstructing it from individual
> environment pointers. Unfortunately in doing so it broke suppressing
> MODALIAS attribute for KOBJ_UNBIND events, as the code that suppressed this
> attribute only adjusted the environment pointers, but left the buffer
> itself alone. Let's fix it by making sure the offending attribute is
> obliterated form the buffer as well.
> 
> Reported-by: Tariq Toukan <tariqt@...lanox.com>
> Reported-by: Casey Leedom <leedom@...lsio.com>
> Fixes: 4a336a23d619 ("kobject: copy env blob in one go")
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
>  lib/kobject_uevent.c | 16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)

Ok, I'm lost here, is this patch still needed for 4.15-final?

And am I supposed to be taking it through my tree as the offending patch
didn't come from me?  :)

thanks,

greg k-h