linux-kernel - Re: Fwd: Memory corruption in multithreaded user space program while calling fork

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Date:   Wed, 5 Jul 2023 08:49:06 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Jacob Young <jacobly.alt@...il.com>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Memory Management <linux-mm@...ck.org>,
        Linux PowerPC <linuxppc-dev@...ts.ozlabs.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Greg KH <gregkh@...uxfoundation.org>
Subject: Re: Fwd: Memory corruption in multithreaded user space program
 while calling fork

On Wed, 5 Jul 2023 10:51:57 +0200 "Linux regression tracking (Thorsten Leemhuis)" <regressions@...mhuis.info> wrote:

> >>> I'm in wait-a-few-days-mode on this.  To see if we have a backportable
> >>> fix rather than disabling the feature in -stable.
> 
> Andrew, how long will you remain in "wait-a-few-days-mode"? Given what
> Greg said below and that we already had three reports I know of I'd
> prefer if we could fix this rather sooner than later in mainline --
> especially as Arch Linux and openSUSE Tumbleweed likely have switched to
> 6.4.y already or will do so soon.

I'll send today's 2-patch series to Linus today or tomorrow.