From: Hannes Reinecke <hare@suse.de>
To: "Yang, Bo" <Bo.Yang@lsi.com>
Cc: SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: megaraid_sas locks down frame count to 8
Date: Mon, 14 Jun 2010 16:30:49 +0200 [thread overview]
Message-ID: <4C163D19.2030905@suse.de> (raw)
Hi all,
we have this bit in drivers/scsi/megaraid/megaraid_sas.c:799
if (frame_count > 7)
frame_count = 8;
which is supposed to report the number of frames required
to handle the passed in sg list.
This results in a nice memory scribble if we pass in a
large enough sg list, as the sg list contents will then
written in the memory area for the next frame.
Any comments here?
If it were me I would just remove that check, but
then LSI might have a valid reason for doing so.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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reply other threads:[~2010-06-14 14:30 UTC|newest]
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