From: Sasha Levin <sashal@kernel.org>
To: gregkh@linuxfoundation.org
Cc: ntsironis@arrikto.com, snitzer@redhat.com, stable@vger.kernel.org
Subject: Re: FAILED: patch "[PATCH] dm clone: Add missing casts to prevent overflows and data" failed to apply to 5.4-stable tree
Date: Wed, 15 Apr 2020 21:08:21 -0400 [thread overview]
Message-ID: <20200416010821.GQ1068@sasha-vm> (raw)
In-Reply-To: <15869486198643@kroah.com>
On Wed, Apr 15, 2020 at 01:03:39PM +0200, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 5.4-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 9fc06ff56845cc5ccafec52f545fc2e08d22f849 Mon Sep 17 00:00:00 2001
>From: Nikos Tsironis <ntsironis@arrikto.com>
>Date: Fri, 27 Mar 2020 16:01:10 +0200
>Subject: [PATCH] dm clone: Add missing casts to prevent overflows and data
> corruption
>
>Add missing casts when converting from regions to sectors.
>
>In case BITS_PER_LONG == 32, the lack of the appropriate casts can lead
>to overflows and miscalculation of the device sector.
>
>As a result, we could end up discarding and/or copying the wrong parts
>of the device, thus corrupting the device's data.
>
>Fixes: 7431b7835f55 ("dm: add clone target")
>Cc: stable@vger.kernel.org # v5.4+
>Signed-off-by: Nikos Tsironis <ntsironis@arrikto.com>
>Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Looks like addressing the other dm patches made this one apply/build as
well.
--
Thanks,
Sasha
prev parent reply other threads:[~2020-04-16 1:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 11:03 FAILED: patch "[PATCH] dm clone: Add missing casts to prevent overflows and data" failed to apply to 5.4-stable tree gregkh
2020-04-16 1:08 ` Sasha Levin [this message]
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