linux-kernel - Re: aranym bug, manifests as "ida_remove called for id=13" on recent kernels

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 11 Oct 2010 03:41:03 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	linux-m68k@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: aranym bug, manifests as "ida_remove called for id=13" on recent
 kernels

On Mon, Oct 11, 2010 at 12:52:56AM +0100, Al Viro wrote:
> On Sun, Oct 10, 2010 at 10:18:03PM +0200, Geert Uytterhoeven wrote:
> > >> This is on aranym-0.9.9-1 from Ubuntu/amd64.
> > >
> > > stat -L /proc/2/exec, otherwise you'll hit lstat() instead of stat().
> > > And FWIW 0.9.10-1 squeeze/amd64 also triggers here...
> > 
> > Still, just "stat: cannot stat `proc/2/exe': No such file or directory" here...
> 
> Interesting...  Which gcc version is used?

Argh...  OK, going through aranym with debugger has exhonorated it.  My
apologies ;-/  It *is* gcc in sid.  Testcase:

extern int foo(int);
void *bar(int n)
{
        return (void *)foo(n);
}

and gcc -S -O2 turns that into
bar:
        link.w %fp,#0
        unlk %fp
        jra foo

Spot the obvious bug...  BTW, why on the Earth does debian-ports m68k tree
use gcc-4.3 with Cthulhu-scaring 700Kb gzipped patch and does *not* have
gcc-4.4?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/