X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; q=dns; s=
	default; b=Niz9qjPO17AAHlu1pmrfQ9TP5ASmDu9HGsydJ5UMDhk6ApKO53s+t
	6fGZ5KRgvfR/V4dOdTt6ChgSFs7uEzx6lOQFwy9kyXELFMozCY+IIJdkMqp7ah9/
	gIJAHeuF+ORmn5YWs6YNEiKbPFcNP/03cMnCEw6lNN4UMAfDfyMQnw=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; s=default;
	bh=5c/ncpjCxX+7jnjhalJwIq3wW/4=; b=jhJubVtV0jWqlTsEkn3xKThNqrsv
	Y1WU/icHQiqDTWjvEiusc9Quy4eFNaHRV6ShGaqHt/0eaouIWYyjR1AyB907bnnn
	DKNVGZMdMIIJ1bIZZi+SfSH1NPGJ3+GmYcc27/KayzjV/DRm+X3BVDYnh5NHLqV5
	2j1aNPpMsRmjtAg=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Spam-SWARE-Status:	No, score=-101.2 required=5.0 tests=AWL,BAYES_00,GOOD_FROM_CORINNA_CYGWIN,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.2 spammy=boy
X-HELO:	mout.kundenserver.de
Date:	Mon, 29 Oct 2018 16:40:43 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Ping crashes
Message-ID:	<20181029154043.GS3310@calimero.vinschen.de>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<SN6PR09MB324734F8016EE54FD0DCE436A5F10 AT SN6PR09MB3247 DOT namprd09 DOT prod DOT outlook DOT com>
MIME-Version:	1.0
In-Reply-To:	<SN6PR09MB324734F8016EE54FD0DCE436A5F10@SN6PR09MB3247.namprd09.prod.outlook.com>
User-Agent:	Mutt/1.9.2 (2017-12-15)

--SO98HVl1bnMOfKZd
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Oct 27 15:25, Lavrentiev, Anton (NIH/NLM/NCBI) [C] via cygwin wrote:
> Hello,
>=20
> I have a problem with the ping utility on Cygwin: it keeps crashing with =
segmentation fault.  I've checked that all my packages (including Cygwin co=
re)
> are up to date.  What am I missing?  At any rate, I guess it should not h=
ave crashed ungracefully if it needs something it doesn't have (like a perm=
ission); instead, if should have said so and bail out with an error exit co=
de rather than a stackdump (attached).
>=20
> Thanks,
> Anton Lavrentiev
>=20
> P.S. ping -h works; ping with any IP address -- crashes
>=20
> $ ping 192.168.1.1
> Segmentation fault (core dumped)
>=20
> $ cat ping.exe.stackdump
> Exception: STATUS_ACCESS_VIOLATION at rip=3D001800579D7
> rax=3D0000000180322500 rbx=3D000000018031FCF8 rcx=3D0000000000000000
> rdx=3D0000000000000003 rsi=3D0000000000000003 rdi=3D0000000000000003
> r8 =3D000000000000001F r9 =3D00000000000000FE r10=3D0000000180204E70
> r11=3D00000000FFFFC892 r12=3D0000000000000000 r13=3D0000000000000003
> r14=3D0000000000000001 r15=3D0000000000000000
> rbp=3D0000000000000018 rsp=3D00000000FFFFCAA0
> program=3DC:\cygwin64\bin\ping.exe, pid 6496, thread main
> cs=3D0033 ds=3D002B es=3D002B fs=3D0053 gs=3D002B ss=3D002B

I just pushed a patch supposed to fix this issue.  The bug is actually
worse and potentially affects more than just ping.  Every time a socket,
socketpair, or accept call fails for some reason, there's a potential
SEGV.  Oh, boy, oh boy.

I've just uploaded developer snapshots to https://cygwin.com/snapshots/
Please test.

I think this qualifies for a 2.11.2 release pretty soon...


Thanks,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

--SO98HVl1bnMOfKZd
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=1Q50
-----END PGP SIGNATURE-----

--SO98HVl1bnMOfKZd--

- Raw text -