linux-kernel - Re: [PATCH v2 1/7] binfmt: don't use MAP_DENYWRITE when loading shared libraries via uselib()

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Message-ID: <CAHk-=whO-dnNxz5H8yfnGsNxrDHu-TVQq-X-VwhoDyWu3Lgnyg@mail.gmail.com>
Date:   Sun, 5 Sep 2021 10:17:26 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     David Hildenbrand <david@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
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        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Kees Cook <keescook@...omium.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Mike Rapoport <rppt@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
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        Chengguang Xu <cgxu519@...ernel.net>,
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Subject: Re: [PATCH v2 1/7] binfmt: don't use MAP_DENYWRITE when loading
 shared libraries via uselib()

On Sun, Sep 5, 2021 at 8:32 AM Guenter Roeck <linux@...ck-us.net> wrote:
>
> Guess someone didn't care compile testing their code. This is now in
> mainline.

To be fair, a.out is disabled pretty much on all relevant platforms these days.

Only alpha and m68k left, I think.

I applied the obvious patch from Geert.

            Linus