From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/13970
Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail
From: Szabolcs Nagy <nsz@port70.net>
Newsgroups: gmane.linux.lib.musl.general
Subject: Re: segfault on sscanf
Date: Thu, 14 Mar 2019 21:15:36 +0100
Message-ID: <20190314201535.GL26605@port70.net>
References: <20190314104617.711ac7d8@faultier2go>
 <20190314162814.GI28106@voyager>
 <20190314165335.GJ28106@voyager>
 <20190314181919.GJ26605@port70.net>
 <20190314183812.GK28106@voyager>
 <20190314194933.GK26605@port70.net>
Reply-To: musl@lists.openwall.com
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226";
	logging-data="252347"; mail-complaints-to="usenet@blaine.gmane.org"
User-Agent: Mutt/1.10.1 (2018-07-13)
To: musl@lists.openwall.com
Original-X-From: musl-return-13986-gllmg-musl=m.gmane.org@lists.openwall.com Thu Mar 14 21:15:53 2019
Return-path: <musl-return-13986-gllmg-musl=m.gmane.org@lists.openwall.com>
Envelope-to: gllmg-musl@m.gmane.org
Original-Received: from mother.openwall.net ([195.42.179.200])
	by blaine.gmane.org with smtp (Exim 4.89)
	(envelope-from <musl-return-13986-gllmg-musl=m.gmane.org@lists.openwall.com>)
	id 1h4Wlc-0013US-7P
	for gllmg-musl@m.gmane.org; Thu, 14 Mar 2019 21:15:52 +0100
Original-Received: (qmail 11365 invoked by uid 550); 14 Mar 2019 20:15:49 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
List-ID: <musl.lists.openwall.com>
Original-Received: (qmail 11344 invoked from network); 14 Mar 2019 20:15:49 -0000
Mail-Followup-To: musl@lists.openwall.com
Content-Disposition: inline
In-Reply-To: <20190314194933.GK26605@port70.net>
Xref: news.gmane.org gmane.linux.lib.musl.general:13970
Archived-At: <http://permalink.gmane.org/gmane.linux.lib.musl.general/13970>

* Szabolcs Nagy <nsz@port70.net> [2019-03-14 20:49:34 +0100]:
> * Markus Wichmann <nullplan@gmx.net> [2019-03-14 19:38:12 +0100]:
> 
> > On Thu, Mar 14, 2019 at 07:19:19PM +0100, Szabolcs Nagy wrote:
> > > i think __shgetc should ensure f->rpos == f->shend on EOF
> > 
> > What about shunget(), though? Currently, if shgetc() returns EOF, at the
> 
> i meant f->rpos == f->shend == 0.

started with commit d6c855caa88ddb1ab6e24e23a14b1e7baf4ba9c7
"fix undefined behavior in strto* via FILE buffer pointer abuse"
musl version 1.1.21