linux-kernel - Re: [PATCH v4 1/2] block: Fix a buffer overrun in bio_integrity

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Message-ID: <yq1ehknbyeu.fsf@sermon.lab.mkp.net>
Date:	Wed, 24 Oct 2012 12:57:45 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Kent Overstreet <koverstreet@...gle.com>,
	linux-bcache@...r.kernel.org, linux-kernel@...r.kernel.org,
	dm-devel@...hat.com, axboe@...nel.dk
Subject: Re: [PATCH v4 1/2] block: Fix a buffer overrun in bio_integrity_split()

>>>>> "Tejun" == Tejun Heo <tj@...nel.org> writes:

Tejun> If Martin is happy with it, I'm not gonna push it but putting the
Tejun> respective storage member after one containing vararray at the
Tejun> end is a legit way to allocate the area statically. As long as
Tejun> the storage field is marked as such and not accessed directly, it
Tejun> doesn't matter whether there's padding inbetween or not. 

The embedded array is still at the end. Kent just added an explicit
pointer for use in the bio_pair corner case.

-- 
Martin K. Petersen	Oracle Linux Engineering
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