linux-kernel - Re: [PATCH AUTOSEL 5.10 20/31] um: allocate a guard page to helper threads

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Message-ID: <20210104142100.GB3665355@sasha-vm>
Date:   Mon, 4 Jan 2021 09:21:00 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Richard Weinberger <richard@....at>,
        linux-um@...ts.infradead.org
Subject: Re: [PATCH AUTOSEL 5.10 20/31] um: allocate a guard page to helper
 threads

On Wed, Dec 30, 2020 at 03:48:57PM +0100, Johannes Berg wrote:
>On Wed, 2020-12-30 at 08:03 -0500, Sasha Levin wrote:
>>
>> We've been running into stack overflows in helper threads
>> corrupting memory
>
>For the record, that was mostly referring to "while development", so
>while this change makes a few things a bit safer, I don't think there's
>all that much point in backporting to stable; presumably things are
>working OK there for people, and developers will (hopefully) be working
>on mainline anyway.

I'll drop it, thanks!

-- 
Thanks,
Sasha