From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
xemul@virtuozzo.com
Subject: Re: [PATCH v2] proc: fix /proc/*/map_files lookup some more
Date: Sun, 4 Mar 2018 23:53:17 +0300 [thread overview]
Message-ID: <20180304205317.GB6757@uranus.lan> (raw)
In-Reply-To: <20180303215130.GA23480@avx2>
On Sun, Mar 04, 2018 at 12:51:30AM +0300, Alexey Dobriyan wrote:
> I totally forgot that _parse_integer() accepts arbitrary amount of
> leading zeroes leading to the following lookups:
>
> OK
> # readlink /proc/1/map_files/56427ecba000-56427eddc000
> /lib/systemd/systemd
>
> bogus
> # readlink /proc/1/map_files/00000000000056427ecba000-56427eddc000
> /lib/systemd/systemd
> # readlink /proc/1/map_files/56427ecba000-00000000000056427eddc000
> /lib/systemd/systemd
>
> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
next prev parent reply other threads:[~2018-03-04 20:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-03 21:51 Alexey Dobriyan
2018-03-04 20:53 ` Cyrill Gorcunov [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-02-21 18:44 [PATCH] " Alexey Dobriyan
2018-02-21 18:51 ` Al Viro
2018-02-21 19:53 ` [PATCH v2] " Alexey Dobriyan
2018-02-21 20:04 ` Andrew Morton
2018-02-21 20:29 ` Cyrill Gorcunov
2018-02-21 20:58 ` Alexey Dobriyan
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