linux-kernel - Re: [PATCH] kasan: disable stackleak plugin in report code

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Message-ID: <CAHk-=whR5j7e0_w_9Ph9ctEnrYKn6tcPjQRHY=u5B+jxDwHvXQ@mail.gmail.com>
Date:   Tue, 11 Oct 2022 15:00:45 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        mm-commits@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kasan: disable stackleak plugin in report code

On Tue, Oct 11, 2022 at 12:05 PM Josh Poimboeuf <jpoimboe@...nel.org> wrote:
>
> kasan_report() has a uaccess critical section which can't have any
> instrumentation calls in the middle.  Disable the stackleak plugin for
> the report code.

I see Andrew already picked this up, but I can confirm that it
obviously fixes the problem here for me.

I'll get it the usual channels from Andrew.

Thanks,
            Linus