linux-kernel - Re: arm64 test_user_copy crash on copy_from

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Message-ID: <CAK8P3a0ZKGjHGTDj0cNcrFYp_oqHz0K1hCPJycB5TA1E9hAUrg@mail.gmail.com>
Date:   Fri, 26 May 2017 22:35:51 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Mark Rutland <mark.rutland@....com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: arm64 test_user_copy crash on copy_from_user(uptr, kptr, size)

On Fri, May 26, 2017 at 5:40 PM, Mark Rutland <mark.rutland@....com> wrote:
> On Fri, May 26, 2017 at 05:24:47PM +0200, Arnd Bergmann wrote:

> AFAICT, that test was disabled in commit:
>
>   f5f893c57e37ca73 ("usercopy: Adjust tests to deal with SMAP/PAN")
>
> ... or have I misunderstood?

I think you are right, my mistake for not checking the latest kernels
and only relying on the bug report that said it also happens on "mainline".

     Arnd