Re: expand_prompt_string segmentation faults

Path	csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail
From	Eduardo A. Bustamante López <dualbus@gmail.com>
Newsgroups	gnu.bash.bug
Subject	Re: expand_prompt_string segmentation faults
Date	Mon, 17 Sep 2018 20:41:59 -0700
Lines	23
Approved	bug-bash@gnu.org
Message-ID	<mailman.906.1537242131.1284.bug-bash@gnu.org> (permalink)
References	<20180914072655.GC18613@ubuntu> <e8ac720a-276a-86d3-aaa7-7371df0737ce@case.edu> <20180916081228.GA31037@ubuntu> <89da4b51-fd95-3f1b-45df-a6ca68fa4840@case.edu> <20180916211528.GB31037@ubuntu> <c5ccaa18-5553-b085-b2ef-0e8d3bf6cb1b@case.edu>
NNTP-Posting-Host	lists.gnu.org
Mime-Version	1.0
Content-Type	text/plain; charset=iso-8859-1
Content-Transfer-Encoding	8bit
X-Trace	usenet.stanford.edu 1537242131 13649 208.118.235.17 (18 Sep 2018 03:42:11 GMT)
X-Complaints-To	action@cs.stanford.edu
Cc	bug-bash@gnu.org
To	Chet Ramey <chet.ramey@case.edu>
Envelope-to	bug-bash@gnu.org
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mail-followup-to:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=cxSteScVDlGdZUTZdq9+Evxpo+EZncUmWZNIhsA2FuI=; b=ldoqJNHi3v5RBuHWyS6uUpip8aVbe6W0OlyEKgQ8LmAG0mhF8Za9vrkSuweADfOfy6 vd2rYGLy97Xbf7MGlCGgP4Fy6z6wip50rfeskKkkD1XXH1n2dWvusljwqdbA3ZWaSzXC 3yRXB+taftdj7zthg14pEY4uI6s81OK2PKRN5CK5+7pFpddbgOr/GGsdl0CZgmDcFIP0 PhYVUSdoduvOTnCreZHl8nJYq4U+FAnK0PeS/HEiTluRH9sBagDCiCSBUC+BO6YqmRea UN6ZCHdCk3eXdQ2BWh97xveGziok9+OFAc62vuUjaiqDnLuj1jgkeBYPiTPl2NKhGKxa iZbQ==
X-Google-DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id :mail-followup-to:references:mime-version:content-disposition :content-transfer-encoding:in-reply-to:user-agent; bh=cxSteScVDlGdZUTZdq9+Evxpo+EZncUmWZNIhsA2FuI=; b=QYkTz7SCfaRhdIZYTa4lmHKjtA48T/mUZzMOip3HoNgaQkYmP+NxYtoiRw26TkLDew QnpXsy8C/wKmZZXH7Zg+ZSIvgoRnepR+5ElCQQTuoBs9Pg1VEzlTN2/REFp6cv+K9Fgi dAv6p4wx5dSgEbacpBCvlVSP4Xrm19ImVIZCQzqlevbaFVo7nonjoMTUz9BOHBl0mthq wF4zP1wSOBomc2ANSxyQctK9Ya5BmCn0eD/+T+ajR9fNFy4otYRLLxMeC7zwpI+kEuRz 59U7iXiz9bMdWXwXofYT/oWuxh30hLgPQ+WzzGlzkiJFWl7Cy3TWSAVyRD/PlLKsCXpr pS0w==
X-Gm-Message-State	APzg51C7K63sWlFxUqquCg60jMO+W8ysaduxgynd416rYE72tjNorm1H r6tj9OusgpJ1AomZgouOUww=
X-Google-Smtp-Source	ANB0VdY9fFPkt9KWK3CzyAJ85iR42XMtdePgwdN9L2KOgClfbiOCSnzfihEB7rgAWvKv/q5okj94Xg==
X-Received	by 2002:a65:5545:: with SMTP id t5-v6mr25775115pgr.157.1537242122694; Mon, 17 Sep 2018 20:42:02 -0700 (PDT)
Mail-Followup-To	Chet Ramey <chet.ramey@case.edu>, bug-bash@gnu.org
Content-Disposition	inline
In-Reply-To	<c5ccaa18-5553-b085-b2ef-0e8d3bf6cb1b@case.edu>
User-Agent	Mutt/1.10.1 (2018-07-13)
X-detected-operating-system	by eggs.gnu.org: Genre and OS details not recognized.
X-Received-From	2607:f8b0:4864:20::436
X-BeenThere	bug-bash@gnu.org
X-Mailman-Version	2.1.21
Precedence	list
List-Id	Bug reports for the GNU Bourne Again SHell <bug-bash.gnu.org>
List-Unsubscribe	<https://lists.gnu.org/mailman/options/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=unsubscribe>
List-Archive	<http://lists.gnu.org/archive/html/bug-bash/>
List-Post	<mailto:bug-bash@gnu.org>
List-Help	<mailto:bug-bash-request@gnu.org?subject=help>
List-Subscribe	<https://lists.gnu.org/mailman/listinfo/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=subscribe>
Xref	csiph.com gnu.bash.bug:14600

Show key headers only | View raw

On Sun, Sep 16, 2018 at 07:24:13PM -0400, Chet Ramey wrote:
> On 9/16/18 5:15 PM, Eduardo A. Bustamante López wrote:
> > On Sun, Sep 16, 2018 at 02:39:07PM -0400, Chet Ramey wrote:
> >> On 9/16/18 4:12 AM, Eduardo A. Bustamante López wrote:
> >>> Here's another interesting crash:
> >>>
> >>> $ base64 < 53
> >>> MBgFEBAQMBgFEBAfEA==
> >>>
> >>> $ gdb -batch -ex=r -ex=bt --args ./bash --noprofile --norc -c 'PATH=; set -o emacs; IFS= read -re' < 53
> >>
> >> I can't reproduce this on Mac OS X or Fedora 28.
> 
> OK, let me look around some more with your debugging hints. If I find it,
> it will be in the next devel branch push.

Hah! Thanks for the fix to rl_do_undo. I appreciate the comments, it makes it
easier to understand what's going on.

I ran this latest push through the set of crashes I found. They're all fixed.

Thanks again!

Back to gnu.bash.bug | Previous | Next | Find similar | Unroll thread

Thread

Re: expand_prompt_string segmentation faults Eduardo A. Bustamante López <dualbus@gmail.com> - 2018-09-17 20:41 -0700

csiph-web