linux-kernel - Re: [GIT PULL] gcc-plugins updates for v4.13-rc1

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Message-ID: <CAK8P3a3CGxgqGeDX_fe1HNHgUqckC2b8Ts2gEW4d0x_N9Zx63Q@mail.gmail.com>
Date:   Wed, 5 Jul 2017 23:48:30 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jean Delvare <jdelvare@...e.de>
Subject: Re: [GIT PULL] gcc-plugins updates for v4.13-rc1

On Wed, Jul 5, 2017 at 11:35 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:

> So the issue I think would be good to fix is perhaps best explained by
> pseudo-code
>
>   int testfn(struct somestruct __user *p)
>   {
>         struct somestruct a;
>
>         initialize_struct(&a);
>         if (copy_to_user(p, &a, sizeof(a)))
>                 return -EFAULT;
>         return 0;
>   }
>
> which is obviously made-up code, but is not actually entirely unrealistic.

This particular example should be handled by
scripts/gcc-plugins/structleak_plugin.c, right?

       Arnd