From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <libc-locales-return-6937-listarch-libc-locales=sources.redhat.com@sourceware.org>
Received: (qmail 115801 invoked by alias); 20 Dec 2019 15:40:27 -0000
Mailing-List: contact libc-locales-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <libc-locales.sourceware.org>
List-Subscribe: <mailto:libc-locales-subscribe@sourceware.org>
List-Post: <mailto:libc-locales@sourceware.org>
List-Help: <mailto:libc-locales-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: libc-locales-owner@sourceware.org
Received: (qmail 115791 invoked by uid 89); 20 Dec 2019 15:40:27 -0000
Authentication-Results: sourceware.org; auth=none
X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.1 spammy=HX-Languages-Length:722, our
X-HELO: mail-il1-f177.google.com
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=mime-version:references:in-reply-to:from:date:message-id:subject:to
         :cc;
        bh=X/98WR+CgpjzYNauVvGfz+MLf6tgfNJqI6YCYHqs/38=;
        b=L+p6HomyBVd98TYkVGM2vrPUogp2cfELqQG5h1Kxl24gMfwj0pfKNkga+HpGB75X0/
         sQjKieMTz3GPJbYiaqh2eHUQSYSp1mBiK5ANvy/C8Pqj49/jTfOlQ5O4pX4Sltls3kuh
         laBACVWt9KropNNAxrNr1KwP8cUrpuojmxV/TivWXSDCpXrA78DeS7BSo6F2GULvomcg
         tWiKbjy7/k0kgxbxi5L0dGljPKMrHnyfvY2gCvVaQ88f7v1fo3wrRXAsBbyZQ5EF11PS
         jTe1abZCKCKklmbo+GRd7hE+dsQfmAzQSQZmYCfGfb/ugU51qlF73Mvyb4eUL/lrmeUM
         4Zhw==
MIME-Version: 1.0
References: <CALmqtCWYWMUm51HhL0VM3YgBJagyC8T3uCGxiUCjXA0KBB-h8w@mail.gmail.com>
 <87bltiv10t.fsf@oldenburg2.str.redhat.com> <CALmqtCWfnPZ=B2=_VM=uqAgMWqh3FbGjxXLcbg466Tgct+dUVw@mail.gmail.com>
 <CALmqtCVBCb2vJ+XNb6WZa1csNZaisLmqoG5nTn-QUU0MO=UbPw@mail.gmail.com>
 <877e42cqfo.fsf@oldenburg2.str.redhat.com> <CALmqtCVKqf53j7=SbUA-k8jHu4AydsoFfN6SZVX8Hv=iYVBLuQ@mail.gmail.com>
 <CALmqtCU6KB6qu1c7R4ngZh=0v+jvqOVjUT431zJoVsKhiNQdbw@mail.gmail.com>
 <875ziledsy.fsf@oldenburg2.str.redhat.com> <CALmqtCXvsdTWQindGNsgVVtMdsWW0dNW+FAttrogeH4uenk_iw@mail.gmail.com>
 <87mubngh8e.fsf@oldenburg2.str.redhat.com>
In-Reply-To: <87mubngh8e.fsf@oldenburg2.str.redhat.com>
From: Abhidnya Joshi <abhidnyachirmule@gmail.com>
Date: Fri, 20 Dec 2019 15:40:00 -0000
Message-ID: <CALmqtCX5=NBAb_qabTmz-nGYJW8qb8iYG_Obbt9JvN8N6gdm5g@mail.gmail.com>
Subject: Re: Crash in gconv_db.c
To: Florian Weimer <fweimer@redhat.com>
Cc: libc-locales@sourceware.org
Content-Type: text/plain; charset="UTF-8"
X-SW-Source: 2019-q4/txt/msg00096.txt.bz2

Its not glibc readdir. It just readdir call on wire (SMB client and
server). We internally call iconv_open in our dir listing.

Thanks and Regards
Abhidnya Joshi

On Fri, Dec 20, 2019 at 8:46 PM Florian Weimer <fweimer@redhat.com> wrote:
>
> * Abhidnya Joshi:
>
> > Good News! We are able to reproduce it using continuous readdirs.
> > (Where reply involved encoding to UTF-16)
> > The stack is exactly same as shared earlier. It did overflowed counter.
> >
> > Do you have any suggestion on the fix? We can test the fix using our test.
>
> glibc's readdir does not perform UTF-16 conversion.  Could you come up
> with an actual reproducer?  Then we can likely fix this bug.
>
> Thanks,
> Florian
>