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From: "Tobin C. Harding" <me@tobin.cc>
To: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Cc: Alexander Kapshuk <alexander.kapshuk@gmail.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	kernel-hardening@lists.openwall.com
Subject: Re: [PATCH] leaking_addresses: add support for 32-bit kernel addresses
Date: Mon, 4 Dec 2017 19:21:11 +1100	[thread overview]
Message-ID: <20171204082111.GB21565@eros> (raw)
In-Reply-To: <CAPDLWs-BFQ+NF15ntxFNS4MT2kVs+k9BUYreDZeYEP1sFLQJ+w@mail.gmail.com>

On Mon, Dec 04, 2017 at 10:51:53AM +0530, Kaiwan N Billimoria wrote:
> > On Mon, Dec 4, 2017 at 10:25 AM, Tobin C. Harding <me@tobin.cc> wrote:
> >>
> >> > With the 'eval', no warning, it's fine.
> >>
> >> Why not use hex()?
> >
> >> >
> >> >         foreach my $config_file (@config_files) {
> >> > +               $config_file =~ s/\R*//g;
> >>
> >> Is there some reason you don't use chomp()?
> >
> 
> Wrt your suggestions:
> 
> ---
> diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
> index 9906dcf8b807..260b52e456f1 100755
> --- a/scripts/leaking_addresses.pl
> +++ b/scripts/leaking_addresses.pl
> @@ -266,7 +266,7 @@ sub is_false_positive
>  sub is_false_positive_ix86_32
>  {
>         my ($match) = @_;
> -       state $page_offset = eval get_page_offset(); # only gets called once
> +       state $page_offset = hex get_page_offset(); # only gets called once

I don't think this is valid ;) I meant use hex() to convert the string
to an int so it doesn't throw the warning (inside get_page_offset()).

thanks,
Tobin.

  reply	other threads:[~2017-12-04  8:21 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-28  6:32 [PATCH] leaking_addresses: add support for 32-bit kernel addresses Tobin C. Harding
2017-11-28 13:16 ` Alexander Kapshuk
2017-11-28 21:10   ` Tobin C. Harding
2017-11-29  7:59     ` Alexander Kapshuk
2017-11-29 10:16       ` Tobin C. Harding
2017-11-29 11:02         ` Kaiwan N Billimoria
2017-11-29 20:48           ` Tobin C. Harding
2017-12-01 13:03             ` Kaiwan N Billimoria
2017-12-01 13:09             ` kaiwan.billimoria
2017-12-04  0:11               ` Tobin C. Harding
2017-12-04  4:41                 ` kaiwan.billimoria
2017-12-04  4:55                   ` Tobin C. Harding
2017-12-04  5:09                     ` Kaiwan N Billimoria
2017-12-04  5:21                       ` Kaiwan N Billimoria
2017-12-04  8:21                         ` Tobin C. Harding [this message]
2017-12-04 10:20                           ` kaiwan.billimoria
2017-12-04 12:37                             ` Alexander Kapshuk
2017-12-04 14:08                               ` Kaiwan N Billimoria
2017-12-04 20:59                             ` Tobin C. Harding
2017-11-29 11:30         ` Alexander Kapshuk

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