From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Jeremy Cline <jcline@redhat.com>
Cc: Jan Kara <jack@suse.com>,
linux-kernel@vger.kernel.org, Andreas Dilger <adilger@dilger.ca>
Subject: Re: [PATCH 0/2] fs/quota: Fix potential spectre v1 gadgets
Date: Tue, 31 Jul 2018 13:43:44 -0500 [thread overview]
Message-ID: <20180731184344.yspy7sjbec74d5w6@treble> (raw)
In-Reply-To: <20180731013731.1987-1-jcline@redhat.com>
On Tue, Jul 31, 2018 at 01:37:29AM +0000, Jeremy Cline wrote:
> Hi folks,
>
> This series unifies XQM_MAXQUOTAS with MAXQUOTAS, which were both being
> used to perform bounds checks on arrays, and then sanitizes 'type' so it
> can't be used in speculative out-of-bounds array access.
>
> Jeremy Cline (2):
> fs/quota: Replace XQM_MAXQUOTAS usage with MAXQUOTAS
> fs/quota: Fix spectre gadget in do_quotactl
>
> fs/quota/quota.c | 14 +++++++-------
> include/linux/quota.h | 8 +-------
> include/uapi/linux/dqblk_xfs.h | 5 -----
> 3 files changed, 8 insertions(+), 19 deletions(-)
Looks good to me, though this might hinge on the discussion with
Andreas:
https://lkml.kernel.org/r/E3E7B6AF-3819-4998-9B12-DACB4EBC14F1@dilger.ca
--
Josh
next prev parent reply other threads:[~2018-07-31 18:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-31 1:37 [PATCH 0/2] fs/quota: Fix potential spectre v1 gadgets Jeremy Cline
2018-07-31 1:37 ` [PATCH 1/2] fs/quota: Replace XQM_MAXQUOTAS usage with MAXQUOTAS Jeremy Cline
2018-08-22 16:05 ` Jan Kara
2018-08-22 16:17 ` Jan Kara
2018-07-31 1:37 ` [PATCH 2/2] fs/quota: Fix spectre gadget in do_quotactl Jeremy Cline
2018-08-22 16:08 ` Jan Kara
2018-07-31 18:43 ` Josh Poimboeuf [this message]
2018-08-22 16:12 ` [PATCH 0/2] fs/quota: Fix potential spectre v1 gadgets Jan Kara
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