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From: Dan Williams <dan.j.williams@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Dan Carpenter <dan.carpenter@oracle.com>
Subject: Re: [PATCH 0/7] Various Spectre-v1 fixes
Date: Mon, 23 Apr 2018 06:50:36 -0700
Message-ID: <CAPcyv4hEufFemihN8-pRC1sUqSzC9vbK8_s28Vyacd_e7-muow@mail.gmail.com> (raw)
In-Reply-To: <20180423093321.GV4064@hirez.programming.kicks-ass.net>

On Mon, Apr 23, 2018 at 2:33 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Sun, Apr 22, 2018 at 07:03:44PM -0600, Michal Hocko wrote:
>> On Fri 20-04-18 15:14:07, Peter Zijlstra wrote:
>> > These fix a number of perf, x86 and sched cases where we have user controlled
>> > array dereferences.  All were found by Dan's recent Smatch update.
>>
>> Do we want to mark all of these for stable?
>
> If we all agree that any (speculative) user-controlled array index --
> irrespective of the existence of the second load/store that would
> complete the gadget -- needs fixing and thus all these patches are
> 'good', then yes, that makes sense.
>
> Given yours is the only response so far, I suspect we're good on all
> that :-)

+1 from me for -stable.

  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-20 13:14 Peter Zijlstra
2018-04-20 13:14 ` [PATCH 1/7] perf: Fix possible Spectre-v1 for aux_pages Peter Zijlstra
2018-04-20 13:14 ` [PATCH 2/7] perf,x86: Fix possible Spectre-v1 for hw_perf_event Peter Zijlstra
2018-04-20 13:14 ` [PATCH 3/7] perf,x86: Fix possible Spectre-v1 for x86_pmu::event_map() Peter Zijlstra
2018-04-20 13:14 ` [PATCH 4/7] perf,x86/msr: Fix possible Spectre-v1 for msr Peter Zijlstra
2018-04-20 13:14 ` [PATCH 5/7] perf,x86/cstate: Fix possible Spectre-v1 for pkg_msr Peter Zijlstra
2018-04-20 13:14 ` [PATCH 6/7] sched: Fix possible Spectre-v1 for sched_prio_to_weight[] Peter Zijlstra
2018-04-20 13:14 ` [PATCH 7/7] sched,autogroup: Fix possible Spectre-v1 for sched_prio_to_weight Peter Zijlstra
2018-04-23  1:03 ` [PATCH 0/7] Various Spectre-v1 fixes Michal Hocko
2018-04-23  9:33   ` Peter Zijlstra
2018-04-23 13:50     ` Dan Williams [this message]
2018-04-23 16:47     ` Michal Hocko

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