linux-kernel - [PATCH 0/2] fs/quota: Fix potential spectre v1 gadgets

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Message-Id: <20180731013731.1987-1-jcline@redhat.com>
Date:   Tue, 31 Jul 2018 01:37:29 +0000
From:   Jeremy Cline <jcline@...hat.com>
To:     Jan Kara <jack@...e.com>
Cc:     linux-kernel@...r.kernel.org, Josh Poimboeuf <jpoimboe@...hat.com>,
        Jeremy Cline <jcline@...hat.com>
Subject: [PATCH 0/2] fs/quota: Fix potential spectre v1 gadgets

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(-)

-- 
2.17.1