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Petersen" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 095/102] scsi: libsas: fix memory leak in sas_smp_get_phy_events() Thread-Topic: [PATCH AUTOSEL for 3.18 095/102] scsi: libsas: fix memory leak in sas_smp_get_phy_events() Thread-Index: AQHTv504r0L4bw3P6kOAK4jYuK0kxA== Date: Mon, 19 Mar 2018 16:13:30 +0000 Message-ID: <20180319161117.17833-95-alexander.levin@microsoft.com> References: <20180319161117.17833-1-alexander.levin@microsoft.com> In-Reply-To: <20180319161117.17833-1-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;DM5PR2101MB0869;7:taJW5PRaMM57CBark5GuCoqz3ERzgmluEMe6MrqYywIfetvLoJ7pKxWPk/Zyu1R5+HA8MIyPnvjirzL0g1f0Sa0U9Vfe4Vu9CxSTCoMgAwPpXSZpcbAIBoQeHiKFhICyZScZHDodKE71dd3t9xyrdFMJXn56p5FJ46n+bPDGoqiugxV65aWmFIz93m4XavH0A89mEjD/5rGvE+4WGVxKby7p9qZSDyWBuicAJ4/lHXbVltV9iFBBNOjsF4n+WM6V;20:WfwnKaHrvgULmz72Bz4UnQPtOm0eNOk/kZ/bW2MBii/C2XyxfWcTWktS3m302V/qmSl7bBCeGjs5O0H6Usp+FrC/BMK4TDOoILsaYxQBa+XgqtANwCAvfqT8mTAZKRY57xEwunHGnsZ6Z1clnEpHhBF7LA6q0S28wSEmf5Q5i8o= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: f8db30a5-6c8e-4a34-bece-08d58db4784f x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0869; x-ms-traffictypediagnostic: DM5PR2101MB0869: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(50582790962513)(146099531331640); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040522)(2401047)(5005006)(8121501046)(3231221)(944501300)(52105095)(3002001)(93006095)(93001095)(10201501046)(6055026)(61426038)(61427038)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123562045)(20161123564045)(20161123558120)(6072148)(201708071742011);SRVR:DM5PR2101MB0869;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB0869; x-forefront-prvs: 06167FAD59 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39860400002)(346002)(366004)(39380400002)(396003)(376002)(189003)(199004)(3846002)(6116002)(186003)(1076002)(53936002)(97736004)(26005)(86612001)(105586002)(2900100001)(575784001)(86362001)(66066001)(6512007)(81156014)(81166006)(68736007)(102836004)(8676002)(72206003)(4326008)(36756003)(6506007)(478600001)(3660700001)(316002)(8936002)(54906003)(14454004)(5660300001)(110136005)(76176011)(2906002)(6666003)(6486002)(2950100002)(25786009)(10090500001)(6436002)(99286004)(107886003)(10290500003)(106356001)(22452003)(2501003)(7736002)(305945005)(5250100002)(3280700002)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB0869;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; x-microsoft-antispam-message-info: ZTWqcrIB/GVMZK6suK4mGTWCoWb3UTQ+kK5jxvni0OiKHg6SGzHVoHWgYz+GpE4clLugnRffgJWF5VdXOcxCIbYc/L/qVKFmZwCIGVGXaOn5t8YRde1sfeNtPbH2o2dPxnXFRTO3t8gj1Hswv5yPfbokZcq2Q4P9RWC3s5fhjnPo3ukmqBmuGrxfnUHjE9S5hJ9JJPUcfMBjNyRgB0UpXbLYbS7QIAv/KQ10O40I4FOgmURs0YmBBB1IEy5AUUf3rLrrJTDHzMHfMPu0OphibKX9Bbi5mdbIqwePBRgNoDFEYCmM5xVxu9i2l1O49SVNsBV0htKTT3c5tKGbdUBj4Q== 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: f8db30a5-6c8e-4a34-bece-08d58db4784f X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:13:30.8882 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0869 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: Jason Yan [ Upstream commit 4a491b1ab11ca0556d2fda1ff1301e862a2d44c4 ] We've got a memory leak with the following producer: while true; do cat /sys/class/sas_phy/phy-1:0:12/invalid_dword_count >/dev/null; done The buffer req is allocated and not freed after we return. Fix it. Fixes: 2908d778ab3e ("[SCSI] aic94xx: new driver") Signed-off-by: Jason Yan CC: John Garry CC: chenqilin CC: chenxiang Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/libsas/sas_expander.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_e= xpander.c index 0cac7d8fd0f7..98783fecd0b7 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -684,6 +684,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy) phy->phy_reset_problem_count =3D scsi_to_u32(&resp[24]); =20 out: + kfree(req); kfree(resp); return res; =20 --=20 2.14.1