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From: "H . J . Lu" <hjl@lucon.org>
To: Andrew Cagney <ac131313@cygnus.com>
Cc: binutils@sourceware.cygnus.com
Subject: Re: PATCH: Update nm.c for 64bit BFD on 32bit ELF files.
Date: Fri, 24 Aug 2001 16:45:00 -0000	[thread overview]
Message-ID: <20010824164507.A12244@lucon.org> (raw)
In-Reply-To: <3B86DFCE.2070605@cygnus.com>

On Fri, Aug 24, 2001 at 07:14:22PM -0400, Andrew Cagney wrote:
> 
> > +  char buf[30];
> >  
> >    if (! dynamic)
> >      {
> > @@ -960,6 +966,9 @@ display_rel_file (abfd, archive_bfd)
> >        return;
> >      }
> >  
> > +  bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
> > +  print_width = strlen (buf);
> > +
> 
> Hmm, the most popular security hole and a generally popular bug is 
> buffer overrun on the stack.  Is hardwiring a buffer allocated of the 
> stack and then sprintf() into it really a good idea?

We know bfd_sprintf_vma will at most print a 64bit address in hex.


H.J.

  reply	other threads:[~2001-08-24 16:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-24 15:35 H . J . Lu
2001-08-24 16:14 ` Andrew Cagney
2001-08-24 16:45   ` H . J . Lu [this message]
2001-08-25  1:55 ` Nick Clifton

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