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Sun, 2 Sep 2018 13:07:51 +0000 Received: from CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::7c3a:eea8:1391:1611]) by CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::7c3a:eea8:1391:1611%7]) with mapi id 15.20.1143.000; Sun, 2 Sep 2018 13:07:51 +0000 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Mauricio Faria de Oliveira , Jens Axboe , Sasha Levin Subject: [PATCH AUTOSEL 4.14 68/89] partitions/aix: append null character to print data from disk Thread-Topic: [PATCH AUTOSEL 4.14 68/89] partitions/aix: append null character to print data from disk Thread-Index: AQHUQr3px3QUxzVp/EeAxCLyNzFLvw== Date: Sun, 2 Sep 2018 13:07:32 +0000 Message-ID: <20180902064918.183387-68-alexander.levin@microsoft.com> References: <20180902064918.183387-1-alexander.levin@microsoft.com> In-Reply-To: <20180902064918.183387-1-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;CY4PR21MB0149;6:b5ClIlhXWkeJQeZB+socY2biO4eTl/6VlQM7kPQWL7jJATVsee/0IPedcHTk6AzNIVkmao1w//mTfcaMh9xE3rg31pvggEd1ps5GxsU8Y8NLPXFatoEiQ7OiLwgr5oMVqymV36eizmE5I+k5geD8h20NI08dirhcVWBkeIaDxYJMroH8GnTqhbynq24b9iJ+uleHSNx1/vwf+KLNQDsdy7OUwnJ73C2/a4l9uAvQuS7iP15vU2bTZfjZpyZ/xbiBXBBt+APsVkXsm+xboTVrgyLVsf/1NlXIRYnwCQTdedz5o8PDNIMtJsiK3TgWvZ3zcRjwEFEih0QsQrb1UPvZlRLvguU3AVtMKKXmddfva/pSEMXpY0fFX5eWFKSHfCbO3iyASE3Y+WZbJr4ps7I1HE1+bOulo2wZozNRQTWkcTWqjpFX6EsSUukM7FCdrguspCYXLDKwgugiPAzPqUuyUQ==;5:wZFNWnM1MGt96xZF/693ugPZQIQAfcBigV2ulHV6jLlR0d4EQ35QJobd1n5p96dfBEBlETfstevZ/TFBezRXtaa7TdJy+Kvxe7HpMOHk2RUe18AK+F4yZ3tzO3fEYhxKjL6xLgUHEiGkcMWIU2oI3z+///Ey6lNPhs+NVprox3s=;7:nbqL4jdfo0tcLNcQr07YC9T4NOjruWolvCgHR5YB474heklwK22zlYrZvxJfOrn7skrO1GAFChgnbvDrwwK01yjPwVeRQWSTHzMf2j4XE3dbtxuoV3Zekb1K3lz8Kt6tyYJSLLyTKpegOhPBVerpNmyXe6t2qF48uZK1/zrx2G2h2pslCgwwuTXcBudZTiRcBpqJ440Hkb1yFPJhTeF8mC+O029jbsppLCAWyKO17GA1DMQdaZ8t+efASPnNPgdp x-ms-office365-filtering-correlation-id: 74e3f075-c1ad-47ed-5f27-08d610d516cd x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(4534165)(4627221)(201703031133081)(201702281549075)(5600074)(711020)(4618075)(2017052603328)(7193020);SRVR:CY4PR21MB0149; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: 4NayIVtiL6ios4s8xvb2NzxKaHWIdmj6cWKnc92Bc9PB3xUiv4/FWiijYE687zlFQAd6fvJJC6bBO9UxxlnDIqvpqZfXkKs7pG2skUjuErcjYK1s43cPty5Jf3xJI8vMvhVxVVmNb8YHayQXlJgC4n6Yd/2jTn9yFaaJDKObzLCfPXUbLdnIKu1WWOoO+XOYNRapioAiu8XxZDPc5sNjIv2mVNmMDl2L5dadxGrOMgN6ZFYKjp9O2+o+4EVkTaJ54Ou7SPMLTU5SR1CwLVrScRDoKj4CaRSIeb/8g0bDr0uwyrs1mTf3dVCaEhNdnKUn3MXsJuARmZQIylRbk56GwH02VicIll+/JIbcHWgJtXM= 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: 74e3f075-c1ad-47ed-5f27-08d610d516cd X-MS-Exchange-CrossTenant-originalarrivaltime: 02 Sep 2018 13:07:32.9415 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0149 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mauricio Faria de Oliveira [ Upstream commit d43fdae7bac2def8c4314b5a49822cb7f08a45f1 ] Even if properly initialized, the lvname array (i.e., strings) is read from disk, and might contain corrupt data (e.g., lack the null terminating character for strings). So, make sure the partition name string used in pr_warn() has the null terminating character. Fixes: 6ceea22bbbc8 ("partitions: add aix lvm partition support files") Suggested-by: Daniel J. Axtens Signed-off-by: Mauricio Faria de Oliveira Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- block/partitions/aix.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/block/partitions/aix.c b/block/partitions/aix.c index 007f95eea0e1..238aca56f552 100644 --- a/block/partitions/aix.c +++ b/block/partitions/aix.c @@ -282,10 +282,14 @@ int aix_partition(struct parsed_partitions *state) next_lp_ix +=3D 1; } for (i =3D 0; i < state->limit; i +=3D 1) - if (lvip[i].pps_found && !lvip[i].lv_is_contiguous) + if (lvip[i].pps_found && !lvip[i].lv_is_contiguous) { + char tmp[sizeof(n[i].name) + 1]; // null char + + snprintf(tmp, sizeof(tmp), "%s", n[i].name); pr_warn("partition %s (%u pp's found) is " "not contiguous\n", - n[i].name, lvip[i].pps_found); + tmp, lvip[i].pps_found); + } kfree(pvd); } kfree(n); --=20 2.17.1