gmane.linux.openwall.user

(GalaxyMaster | 16 Mar 13:22

bug: sed segfaults

Hello,

I've just encountered a bug in Owl sed and narrowed this bug down to the
shortest pattern that is triggering the bug:

mother!galaxy:~$ sed '/^\(\)$/d' /dev/null
Segmentation fault
mother!galaxy:~$ sed --version | head -n1
GNU sed version 4.1.4
mother!galaxy:~$ rpm -q sed
sed-4.1.4-owl1
mother!galaxy:~$

I've also checked sed in Ubuntu, their sed has no such bug:

galaxy <at> intruder:~$ sed '/^\(\)$/d' /dev/null
galaxy <at> intruder:~$ sed --version | head -n1
GNU sed version 4.1.5
galaxy <at> intruder:~$ dpkg -l sed | sed -n 6p
ii  sed            4.1.5-2        The GNU sed stream editor
galaxy <at> intruder:~$

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Dmitry V. Levin | 16 Mar 14:10

Re: bug: sed segfaults

Hi,

On Sun, Mar 16, 2008 at 03:24:58PM +0300, (GalaxyMaster) wrote:
> I've just encountered a bug in Owl sed and narrowed this bug down to the
> shortest pattern that is triggering the bug:
> 
> mother!galaxy:~$ sed '/^\(\)$/d' /dev/null
> Segmentation fault
> mother!galaxy:~$ sed --version | head -n1
> GNU sed version 4.1.4
> mother!galaxy:~$ rpm -q sed
> sed-4.1.4-owl1

Unable to reproduce with sed from -current:
$ rpmquery sed
sed-4.1.5-owl1

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Solar Designer | 17 Mar 00:39

Re: bug: sed segfaults

> On Sun, Mar 16, 2008 at 03:24:58PM +0300, (GalaxyMaster) wrote:
> > I've just encountered a bug in Owl sed and narrowed this bug down to the
> > shortest pattern that is triggering the bug:

Galaxy - thank you for revitalizing this mailing list.  It does feel
wrong when all discussions occur on our private development list, with
this public one staying silent.  Having some discussions in public may
encourage our actual users (who, unlike you, don't happen to be Owl
developers at the same time) to point out any issues and ask any
questions in public as well, rather than continue to approach us via
private e-mail...

Dmitry -

> > mother!galaxy:~$ sed '/^\(\)$/d' /dev/null
> > Segmentation fault
> > mother!galaxy:~$ sed --version | head -n1
> > GNU sed version 4.1.4
> > mother!galaxy:~$ rpm -q sed
> > sed-4.1.4-owl1

On Sun, Mar 16, 2008 at 04:10:08PM +0300, Dmitry V. Levin wrote:
> Unable to reproduce with sed from -current:
> $ rpmquery sed
> sed-4.1.5-owl1

Same here - segfault on Owl 2.0-stable, nothing on -current.  Given that
-current has been at 4.1.5-owl1 since Feb 20 2006, it should be safe to
sync the package in 2.0-stable to that version as well.  I'd appreciate
it if you do that.

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Solar Designer | 17 Mar 01:42

Re: bug: sed segfaults

One hour ago, I wrote:

> Dmitry -
...
> Same here - segfault on Owl 2.0-stable, nothing on -current.  Given that
> -current has been at 4.1.5-owl1 since Feb 20 2006, it should be safe to
> sync the package in 2.0-stable to that version as well.  I'd appreciate
> it if you do that.

This has now been done, and the update will be propagating to our
mirrors.  Dmitry - thank you for being so quick!

Alexander

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