linux-kernel - Re: [PATCH] tracing: Correct the length check which causes memory corruption

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Date:   Wed, 9 Jun 2021 13:55:04 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     James Wang <jnwang@...ux.alibaba.com>,
        Liangyan <liangyan.peng@...ux.alibaba.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Xunlei Pang <xlpang@...ux.alibaba.com>,
        yinbinbin@...babacloud.com, wetp <wetp.zy@...ux.alibaba.com>,
        stable <stable@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] tracing: Correct the length check which causes memory corruption

On Wed, Jun 9, 2021 at 1:52 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> That said, even though I'm almost done with my tests on this patch, and
> was going to send you a pull request later today, I can hold off and
> have Liangyan send a v2 using struct_size and with the clean ups you
> suggested.

I think the cleanups could be separate. I in no way _hate_ Liangyan's
patch, it's just that when looking at it I just went "that code is
very confusing".

So I'm certainly also ok with just getting that ugly fix, and then
hope for a cleanup later. Maybe with a comment or two.

Thanks,
            Linus