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Sun, 8 Apr 2018 20:21:08 -0400 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Arnd Bergmann , Steve French , Sasha Levin Subject: [PATCH AUTOSEL for 4.15 159/189] cifs: silence compiler warnings showing up with gcc-8.0.0 Thread-Topic: [PATCH AUTOSEL for 4.15 159/189] cifs: silence compiler warnings showing up with gcc-8.0.0 Thread-Index: AQHTz5hYHpe4hC8FsUadgqu6qzkleA== Date: Mon, 9 Apr 2018 00:18:55 +0000 Message-ID: <20180409001637.162453-159-alexander.levin@microsoft.com> References: <20180409001637.162453-1-alexander.levin@microsoft.com> In-Reply-To: <20180409001637.162453-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0920;7:hnHfhlcAon90pbvBsJEtOLN8lYyz5bocm7CLZImq++McFaHEREM/l5YX8vx/WgVhxK5VD6I17t+eMg5bRVzg5qkdJ5HmYgRa+WrfuOd2aickamUfedPAm5I6H1Q9XTR5epyNyHopnBkNEzrdkU34warHHFS3XQoh+4n9PxvrCHaa3FGuaRh9mQprSgzLIamyg6H7sM+9KuiLnKw/fsHAPG5iHIbOZaPz5Jf/mfxGossUW5VW3vM2aWWa2pwobg4d;20:iCSPUSajuOjXeoW1BplAPRIfRSf1coMVHhWXJfZe8Y4Kt2/07zzwu+drlctbSiD9+Ryje0VRnEU++qEuZULba5op6BuMmPasSQc+gW7+/yjGlW0t5A36HfIToEAMU+larTAwN8vNkalnqT5sjcT4P7ndtR/uBOVVdpgvFxHlx04= X-MS-Office365-Filtering-Correlation-Id: 56aa3c62-77ee-4823-284f-08d59dafc75f x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(3008032)(48565401081)(2017052603328)(7193020);SRVR:DM5PR2101MB0920; 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x-microsoft-antispam-message-info: AZzfJG4eXV98LwH7Wivx6I/ytChC/IyLmw1LgTef0W9xnuOQc8ndrAErG4QwFREKIjzRhVtEJL4XvMS72Ijl13Y/7A8/rI6u+5azdzIkEsQz17PVsiYycME+tFuuxCkVpuAEZ5DCK6UZ3WG9i5+uc6Byd28zfRmTtZLtqTnX/G1nn/NyMfHoEoSIqaUM9FQBzah/3CSq+keeOoi1ZiJo6c89lO9/FP7B1tt24KCvz2GVTOESyTJxd5p3PDXCtPevdufxofAE5mT9UaNssgZO0U5lcxTcij7baZ5Pghl160pYBfp3a+od8HCuEtc2FxqU08kn2/+nmC5qHR7yCSIOfGiOXhJnTsaHnWMGT1lPfZKdJyliaitUNncCmjyPDpWNGlXanweqlKi31i6Y2LnbErjMK4TXuj4ty6tHNkp8en0= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 56aa3c62-77ee-4823-284f-08d59dafc75f X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:18:55.9401 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0920 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Arnd Bergmann [ Upstream commit ade7db991b47ab3016a414468164f4966bd08202 ] This bug was fixed before, but came up again with the latest compiler in another function: fs/cifs/cifssmb.c: In function 'CIFSSMBSetEA': fs/cifs/cifssmb.c:6362:3: error: 'strncpy' offset 8 is out of the bounds [0= , 4] [-Werror=3Darray-bounds] strncpy(parm_data->list[0].name, ea_name, name_len); Let's apply the same fix that was used for the other instances. Fixes: b2a3ad9ca502 ("cifs: silence compiler warnings showing up with gcc-4= .7.0") Signed-off-by: Arnd Bergmann Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/cifs/cifssmb.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 35dc5bf01ee2..7fd39ea6e22e 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -6331,9 +6331,7 @@ SetEARetry: pSMB->InformationLevel =3D cpu_to_le16(SMB_SET_FILE_EA); =20 - parm_data =3D - (struct fealist *) (((char *) &pSMB->hdr.Protocol) + - offset); + parm_data =3D (void *)pSMB + offsetof(struct smb_hdr, Protocol) + offset; pSMB->ParameterOffset =3D cpu_to_le16(param_offset); pSMB->DataOffset =3D cpu_to_le16(offset); pSMB->SetupCount =3D 1; --=20 2.15.1