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Date: Fri, 7 Mar 2003 03:51:45 -0800
From: Andrew Morton <akpm@digeo.com>
To: Oleg Drokin <green@namesys.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [2.5] memleak in load_elf_binary?
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Oleg Drokin <green@namesys.com> wrote:
>
> Hello!
> 
> On Fri, Mar 07, 2003 at 03:25:32AM -0800, Andrew Morton wrote:
> > >    I am still playing with improving memleak detector thing from smatch project.
> > >    Seems there is a memleak in fs/binfmt_elf.c::load_elf_binary() in current 2.5
> > >    If setup_arg_pages() fails (line 638 in my sources) we do return but 
> > >    not freeing possibly allocated elf_interpreter (line 520) and 
> > >    allocated elf_phdata (line 500) areas.
> > >    Is this looking real? At least it looks real for me (I am trying to get
> > >    number of false positives way down).
> > Yes, you're right.  And there's a second one further down.
> 
> Ah, hm? Can you be mo precise? I do not see it.
> 
> Next return I see is in line 745, and the memory is freed before it.
> 

It forgets to close the file.  It'll be closed anyway by exit so
I guess that's OK.
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