From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 46635 invoked by alias); 19 Mar 2019 19:28:52 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 46628 invoked by uid 89); 19 Mar 2019 19:28:52 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=no version=3.3.1 spammy=HX-Spam-Relays-External:sk:broadba, H*UA:x64, H*UA:Win64, lz X-HELO: mail-lf1-f43.google.com Received: from mail-lf1-f43.google.com (HELO mail-lf1-f43.google.com) (209.85.167.43) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 19 Mar 2019 19:28:51 +0000 Received: by mail-lf1-f43.google.com with SMTP id g7so15141lfh.10 for ; Tue, 19 Mar 2019 12:28:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:from:autocrypt:subject:message-id:date:user-agent:mime-version; bh=D2/6qG4eqxuoZQYRV2iXfK3uvwXYoxeBCd/5DSLeilo=; b=BKQycySZieZzB+aXZHn4mN/7FAnhSB7ViV63eQdJd526R55LNYyqoOMqW1i/fdAQRJ JgQknLWFdxhshuUqswnHPiFf/r50/9mx+R8D2QmdpTPbn6Ml+ZL8t8IThHVnlzw0G1JG Yc+SZz4FmU3wGUND9wMnIeO7NBFAwDVDLSKzYLWJXfPW8MFWEd7nfvPyjj2/1msHsHX4 R2hR3VqO5BPPhbYHGgLPqm6xOZNjxNOSE232TaSJaQhuZITG3Dcy/ZOFXeS/1HDZAUh8 USP70vis1dLNWOSuV7EnqH9YVJtw9Cne9NHBSdsLxpm1CDxFt0P2m5ps7e1R5VMO8rPy 6tPw== Return-Path: Received: from [192.168.4.39] (broadband-95-84-200-6.ip.moscow.rt.ru. [95.84.200.6]) by smtp.gmail.com with ESMTPSA id r1sm1692386lfm.7.2019.03.19.12.28.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Mar 2019 12:28:47 -0700 (PDT) To: cygwin@cygwin.com From: LRN Subject: wcsxfrm() with empty locale crashes the runtime Message-ID: <02f956fa-e872-87ba-9ab0-f10afc494a02@gmail.com> Date: Tue, 19 Mar 2019 19:28:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Thunderbird/60.5.3 MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="h3EVDVs5PR9HAZj6zsTArqn90pJgFqRgO" X-IsSubscribed: yes X-SW-Source: 2019-03/txt/msg00492.txt.bz2 --h3EVDVs5PR9HAZj6zsTArqn90pJgFqRgO Content-Type: multipart/mixed; boundary="UDNHIAmM0ZiMkCghyluA7w1qQACBxGFnI"; protected-headers="v1" From: LRN To: cygwin@cygwin.com Message-ID: <02f956fa-e872-87ba-9ab0-f10afc494a02@gmail.com> Subject: wcsxfrm() with empty locale crashes the runtime --UDNHIAmM0ZiMkCghyluA7w1qQACBxGFnI Content-Type: multipart/mixed; boundary="------------1B61164F24D0300C17421CD0" Content-Language: en-US This is a multi-part message in MIME format. --------------1B61164F24D0300C17421CD0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-length: 248 The testcase is attached. Running it with Cygwin-i386 leads to a crash. My guess is that the implementation is not POSIX-conformant and tries to dereference the first argument (NULL), even though the third argument is 0. Tested with Cygwin-3.0.4. --------------1B61164F24D0300C17421CD0 Content-Type: text/plain; charset=UTF-8; name="wcsxfrm_test.c" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="wcsxfrm_test.c" Content-length: 244 I2luY2x1ZGUgPHdjaGFyLmg+CiNpbmNsdWRlIDxzdGRsaWIuaD4KI2luY2x1 ZGUgPGxvY2FsZS5oPgoKaW50Cm1haW4gKCkKewogIHdjaGFyX3Qgd1syXSA9 IHsgTCd6JywgTCdcMCcgfTsKICBzZXRsb2NhbGUgKExDX0FMTCwgIiIpOwog IGludCBsID0gd2NzeGZybSAoTlVMTCwgdywgMCk7CiAgcmV0dXJuIGw7Cn0K --------------1B61164F24D0300C17421CD0-- --UDNHIAmM0ZiMkCghyluA7w1qQACBxGFnI-- --h3EVDVs5PR9HAZj6zsTArqn90pJgFqRgO Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-length: 833 -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE4MWzR43wYaAzEA49ja3pJ2dZunQFAlyRQukACgkQja3pJ2dZ unQ1QxAAortbckmnetBtkerP8F/pCESBrTh3xLe3M6R0Gp04l3M9lOQiVSPcOrU4 7rp4EQC+7nKcoQqWNpJJlUREFztDBX9VwQOQsvH51WNCqic8ZyqIPoUQd1D+TTQj qs1+VyNMmCB9+E6xFbIeT/xU330tU+saMALsdUjGVqMNiUgGt1+Om59kut3nWWEH EybhSwsJwBPL1I74ThkSH4GUvKGSf9Nn3uZKxpsPq8/Nt2M7YAzZ9QWXed2vbCl8 JhUzH+qgf4+BQcjwM2pKrELHtqCSURNEWdcQPthJLXKxsnXWdgVeJwEise/qCscb OlwPAimFhcclrHJC4JFmU3FO/IpQmefQm0YhDBsUJt2ipKGScGbacoS9AZ+5+HQm K9hy8N3xXratlrAkQKc6UdG8OD5yHnQVwcFUby8Zptgdu3XU8pJm9OURQvljcegh 25RP4tHW+a3tKvy1vlh+SioUeNudZf1Qydsp7H8LNHlLfY4QsfOKFRfU9ci6kOQi LLlJROFqN1hF4DOd/hx59HwvJJafssFMXcl2jepF0yEGHIGMtId5tkk9Pk6ZRWLI e/Q1ltYFSaSQZCQm99NpUAiX0RmwJb5Pyub9yvnVLWSlaNPCIve1I5Voo4XiqukP HphuewmajucG96B9NQ5XKtIZZrSiLi1jJQkuIs7m7/6Nc6ui1bQ= =9AWw -----END PGP SIGNATURE----- --h3EVDVs5PR9HAZj6zsTArqn90pJgFqRgO--