From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Bennett Subject: Re: [Bug] Linux 4.1.9, NULL pointer dereference in pppoe_release+0x120/0x150 Date: Tue, 20 Oct 2015 20:06:40 +0000 Message-ID: <1445371600.4157.10.camel@mattb-dl> References: <56261EC0.2080807@seti.kr.ua> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: "netdev@vger.kernel.org" To: "nitr0@seti.kr.ua" Return-path: Received: from gate2.alliedtelesis.co.nz ([202.36.163.20]:56214 "EHLO gate2.alliedtelesis.co.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751726AbbJTUGs (ORCPT ); Tue, 20 Oct 2015 16:06:48 -0400 In-Reply-To: <56261EC0.2080807@seti.kr.ua> Content-Language: en-US Content-ID: <8535F42DD4548A49A998DFBA94995BAC@atlnz.lc> Sender: netdev-owner@vger.kernel.org List-ID: T24gVHVlLCAyMDE1LTEwLTIwIGF0IDE0OjAwICswMzAwLCBBbmRyZXcgd3JvdGU6DQo+IEhpLg0K PiANCj4gQWZ0ZXIgQlJBUyBzb2Z0d2FyZSB1cGdyYWRpbmcgKFBQUG9FIGRhZW1vbiArIGtlcm5l bCBmcm9tIDMuMi54IHRvIA0KPiA0LjEueCkgSSBoYXZlIGRpZmZlcmVudCBrZXJuZWwgYnVncy9j cmFzaGVzIC0gc29tZSBvZiB0aGVtIGRvbid0IGh1cnQgDQo+IHN5c3RlbSwgb3RoZXIgY3Jhc2hl cyAtIGNhdXNlIG5ldHdvcmsgc3Vic3lzdGVtIGxvY2t1cCAoY29tbWFuZHMgbGlrZSANCj4gJ2lw IGEnIGp1c3QgaHVuZ3M7IGFuZCBzb21ldGltZXMgZXZlbiAncmVib290IC1mJyBkb2Vzbid0IGhl bHApLg0KPiANCj4gSXQgc2VlbXMgbGlrZSB0aGVyZSdzIGEgc2ltaWxhciB0cm91YmxlOiANCj4g aHR0cDovL3Blcm1hbGluay5nbWFuZS5vcmcvZ21hbmUubGludXgucHBwLzQ0MTANCj4gDQo+IEhl cmUncyBvbmUgb2Ygc3VjaCBjcmFzaGVzOg0KPiANCj4gWzk4MTk5LjYwNTEyMF0gQlVHOiB1bmFi bGUgdG8gaGFuZGxlIGtlcm5lbCBOVUxMIHBvaW50ZXIgZGVyZWZlcmVuY2UgYXQgDQo+IDAwMDAw MjgwDQo+IFs5ODE5OS42MDUyMTldIElQOiBbPGY5YTAzNTgwPl0gcHBwb2VfcmVsZWFzZSsweDEy MC8weDE1MCBbcHBwb2VdDQo+IFs5ODE5OS42MDUyNzVdICpwZHB0ID0gMDAwMDAwMDAzNDVjNTAw MSAqcGRlID0gMDAwMDAwMDAwMDAwMDAwMA0KPiBbOTgxOTkuNjA1MzM1XSBPb3BzOiAwMDAwIFsj MV0gU01QDQo+IFs5ODE5OS42MDUzODFdIE1vZHVsZXMgbGlua2VkIGluOiBhY3RfbWlycmVkIHBw cG9lIHBwcG94IHBwcF9nZW5lcmljIA0KPiBzbGhjIGlwdGFibGVfZmlsdGVyIHh0X2xlbmd0aCB4 dF9UQ1BNU1MgeHRfdGNwdWRwIHh0X21hcmsgeHRfZHNjcCANCj4gaXB0YWJsZV9tYW5nbGUgaXBf dGFibGVzIHhfdGFibGVzIGlwdjYgc2NoX3NmcSBzY2hfaHRiIGNsc191MzIgDQo+IHNjaF9pbmdy ZXNzIHNjaF9wcmlvIHNjaF90YmYgY2xzX2Zsb3cgY2xzX2Z3IGFjdF9wb2xpY2UgaWZiIDgwMjFx IG1ycCANCj4gZ2FycCBzdHAgbGxjIHNvZnRkb2cgcGFycG9ydF9wYyBwYXJwb3J0IGFjcGlfY3B1 ZnJlcSBwcm9jZXNzb3IgDQo+IHRoZXJtYWxfc3lzIGkyY19waWl4NCBpMmNfY29yZSBpZ2IoTykg c3A1MTAwX3RjbyBrMTB0ZW1wIGh3bW9uIG9oY2lfcGNpIA0KPiBvaGNpX2hjZCBkY2EgcHRwIHBw c19jb3JlIHNkX21vZCBwYXRhX2FjcGkgcGNzcGtyIHBhdGFfYXRpaXhwIGFoY2kgDQo+IGxpYmFo Y2kgYXRhX2dlbmVyaWMgbGliYXRhIGVoY2lfcGNpIGVoY2lfaGNkIHVzYmNvcmUgc2NzaV9tb2Qg dXNiX2NvbW1vbiANCj4gZXh0NCBtYmNhY2hlIGpiZDIgY3JjMTYgdmZhdCBmYXQgaXNvZnMNCj4g Wzk4MTk5LjYwNTg1OF0gQ1BVOiAyIFBJRDogNTY5MSBDb21tOiBhY2NlbC1wcHBkIFRhaW50ZWQ6 IEcgICAgICAgICAgIA0KPiBPICAgIDQuMS45LWk2ODYgIzENCj4gWzk4MTk5LjYwNTk0Ml0gSGFy ZHdhcmUgbmFtZTogTUlDUk8tU1RBUiBJTlRFUk5BVElPTkFMIENPLixMVEQgDQo+IE1TLTc1OTYv NzYwR00tRTUxKE1TLTc1OTYpLCBCSU9TIFYzLjMgMDEvMTIvMjAxMg0KPiBbOTgxOTkuNjA2MDI3 XSB0YXNrOiBmNDdiMDAwMCB0aTogZGVkZmMwMDAgdGFzay50aTogZGVkZmMwMDANCj4gWzk4MTk5 LjYwNjA3M10gRUlQOiAwMDYwOls8ZjlhMDM1ODA+XSBFRkxBR1M6IDAwMjEwMjQ2IENQVTogMg0K PiBbOTgxOTkuNjA2MTIwXSBFSVAgaXMgYXQgcHBwb2VfcmVsZWFzZSsweDEyMC8weDE1MCBbcHBw b2VdDQo+IFs5ODE5OS42MDYxNjVdIEVBWDogMDAwMDAwMDAgRUJYOiBkNTA2YzQwMCBFQ1g6IDAw MDAwMDAwIEVEWDogZmZmZmZlMDENCj4gWzk4MTk5LjYwNjIxMF0gRVNJOiBmMjI4ZDgwMCBFREk6 IGYyMjhkODFjIEVCUDogZGVkZmRmNDggRVNQOiBkZWRmZGYyYw0KPiBbOTgxOTkuNjA2MjU2XSAg RFM6IDAwN2IgRVM6IDAwN2IgRlM6IDAwZDggR1M6IDAwMzMgU1M6IDAwNjgNCj4gWzk4MTk5LjYw NjMwMV0gQ1IwOiA4MDA1MDAzYiBDUjI6IDAwMDAwMjgwIENSMzogMzJlMzg3NjAgQ1I0OiAwMDAw MDZmMA0KPiBbOTgxOTkuNjA2MzQ0XSBTdGFjazoNCj4gWzk4MTk5LjYwNjM4NV0gIGUwZmNkYzA4 IGY1YWEwOWEwIDAwMDAwMDA4IGYyMjhkODFjIGYyMjhkODAwIGY5YTAzY2MwIA0KPiBmMjI4ZDgx YyBkZWRmZGY2MA0KPiBbOTgxOTkuNjA2NDgwXSAgYzEyZjRmNzAgZjUyZTIxOTAgMDAwMDAwMDAg ZTBmY2RjMDAgMDAwMDAwMDggZGVkZmRmNjggDQo+IGMxMmY0ZmYwIGRlZGZkZjk0DQo+IFs5ODE5 OS42MDY1NzRdICBjMTEzOWRjNCAwMDAwMDAwMSAwMDAwMDAwMCAwMDAwMDAwMCBlMGZjZGMwOCBm MjMxZGM4MCANCj4gZjUyZTIxOTAgZjQ3YjAzYzANCj4gWzk4MTk5LjYwNjY2OF0gQ2FsbCBUcmFj ZToNCj4gWzk4MTk5LjYwNjcxN10gIFs8YzEyZjRmNzA+XSA/IHNvY2tfcmVsZWFzZSsweDIwLzB4 OTANCj4gWzk4MTk5LjYwNjc2M10gIFs8YzEyZjRmZjA+XSA/IHNvY2tfY2xvc2UrMHgxMC8weDIw DQo+IFs5ODE5OS42MDY4MTBdICBbPGMxMTM5ZGM0Pl0gPyBfX2ZwdXQrMHg4NC8weDFiMA0KPiBb OTgxOTkuNjA2ODU3XSAgWzxjMTA2M2M3MT5dID8gdGFza193b3JrX3J1bisweDkxLzB4ZDANCj4g Wzk4MTk5LjYwNjkwM10gIFs8YzEzYmFkMTU+XSA/IHdvcmtfbm90aWZ5c2lnKzB4MTYvMHgxZA0K PiBbOTgxOTkuNjA2OTQ2XSBDb2RlOiA1ZSA1ZiA1ZCBjMyA4ZCBiNCAyNiAwMCAwMCAwMCAwMCA4 OSBkOCBlOCAyOSA2NCA4ZiANCj4gYzcgMzEgYzAgODMgYzQgMTAgNWIgNWUgNWYgNWQgYzMgOGQg YjQgMjYgMDAgMDAgMDAgMDAgOGIgODMgZjggMDEgMDAgMDAgDQo+IDMxIGM5IDw4Yj4gODAgODAg MDIgMDAgMDAgNjQgZmYgMDggODkgOGIgZjggMDEgMDAgMDAgZTkgMGEgZmYgZmYgZmYgODkNCj4g Wzk4MTk5LjYwNzE4MF0gRUlQOiBbPGY5YTAzNTgwPl0gcHBwb2VfcmVsZWFzZSsweDEyMC8weDE1 MCBbcHBwb2VdIA0KPiBTUzpFU1AgMDA2ODpkZWRmZGYyYw0KPiBbOTgxOTkuNjA3MjY3XSBDUjI6 IDAwMDAwMDAwMDAwMDAyODANCj4gWzk4MTk5LjYwNzcwMV0gLS0tWyBlbmQgdHJhY2UgNjFhOTFh Mjk4NzZjMTZiOSBdLS0tDQo+IFs5ODIzMi42MTIxOTNdIEJVRzogdW5hYmxlIHRvIGhhbmRsZSBr ZXJuZWwgTlVMTCBwb2ludGVyIGRlcmVmZXJlbmNlIGF0IA0KPiAwMDAwMDI4MA0KPiBbOTgyMzIu NjEyMzQzXSBJUDogWzxmOWEwMzU4MD5dIHBwcG9lX3JlbGVhc2UrMHgxMjAvMHgxNTAgW3BwcG9l XQ0KPiBbOTgyMzIuNjEyNDU1XSAqcGRwdCA9IDAwMDAwMDAwMzQ1YzUwMDEgKnBkZSA9IDAwMDAw MDAwMDAwMDAwMDANCj4gWzk4MjMyLjYxMjU5MV0gT29wczogMDAwMCBbIzJdIFNNUA0KPiBbOTgy MzIuNjEyNzIyXSBNb2R1bGVzIGxpbmtlZCBpbjogYWN0X21pcnJlZCBwcHBvZSBwcHBveCBwcHBf Z2VuZXJpYyANCj4gc2xoYyBpcHRhYmxlX2ZpbHRlciB4dF9sZW5ndGggeHRfVENQTVNTIHh0X3Rj cHVkcCB4dF9tYXJrIHh0X2RzY3AgDQo+IGlwdGFibGVfbWFuZ2xlIGlwX3RhYmxlcyB4X3RhYmxl cyBpcHY2IHNjaF9zZnEgc2NoX2h0YiBjbHNfdTMyIA0KPiBzY2hfaW5ncmVzcyBzY2hfcHJpbyBz Y2hfdGJmIGNsc19mbG93IGNsc19mdyBhY3RfcG9saWNlIGlmYiA4MDIxcSBtcnAgDQo+IGdhcnAg c3RwIGxsYyBzb2Z0ZG9nIHBhcnBvcnRfcGMgcGFycG9ydCBhY3BpX2NwdWZyZXEgcHJvY2Vzc29y IA0KPiB0aGVybWFsX3N5cyBpMmNfcGlpeDQgaTJjX2NvcmUgaWdiKE8pIHNwNTEwMF90Y28gazEw dGVtcCBod21vbiBvaGNpX3BjaSANCj4gb2hjaV9oY2QgZGNhIHB0cCBwcHNfY29yZSBzZF9tb2Qg cGF0YV9hY3BpIHBjc3BrciBwYXRhX2F0aWl4cCBhaGNpIA0KPiBsaWJhaGNpIGF0YV9nZW5lcmlj IGxpYmF0YSBlaGNpX3BjaSBlaGNpX2hjZCB1c2Jjb3JlIHNjc2lfbW9kIHVzYl9jb21tb24gDQo+ IGV4dDQgbWJjYWNoZSBqYmQyIGNyYzE2IHZmYXQgZmF0IGlzb2ZzDQo+IFs5ODIzMi42MTUxODJd IENQVTogMSBQSUQ6IDIxMjEgQ29tbTogYWNjZWwtcHBwZCBUYWludGVkOiBHIEQgICAgTyAgICAN Cj4gNC4xLjktaTY4NiAjMQ0KPiBbOTgyMzIuNjE1Mjk0XSBIYXJkd2FyZSBuYW1lOiBNSUNSTy1T VEFSIElOVEVSTkFUSU9OQUwgQ08uLExURCANCj4gTVMtNzU5Ni83NjBHTS1FNTEoTVMtNzU5Niks IEJJT1MgVjMuMyAwMS8xMi8yMDEyDQo+IFs5ODIzMi42MTU0MDddIHRhc2s6IGY0OTY2ZDgwIHRp OiBkZTJkMjAwMCB0YXNrLnRpOiBkZTJkMjAwMA0KPiBbOTgyMzIuNjE1NDgzXSBFSVA6IDAwNjA6 WzxmOWEwMzU4MD5dIEVGTEFHUzogMDAyMTAyNDYgQ1BVOiAxDQo+IFs5ODIzMi42MTU1NjBdIEVJ UCBpcyBhdCBwcHBvZV9yZWxlYXNlKzB4MTIwLzB4MTUwIFtwcHBvZV0NCj4gWzk4MjMyLjYxNTYz NF0gRUFYOiAwMDAwMDAwMCBFQlg6IGQ0OGJmMDAwIEVDWDogMDAwMDAwMDAgRURYOiBmZmZmZmUw MQ0KPiBbOTgyMzIuNjE1NzA4XSBFU0k6IGYyMjZjYTgwIEVESTogZjIyNmNhOWMgRUJQOiBkZTJk M2Y0OCBFU1A6IGRlMmQzZjJjDQo+IFs5ODIzMi42MTU3OTNdICBEUzogMDA3YiBFUzogMDA3YiBG UzogMDBkOCBHUzogMDAzMyBTUzogMDA2OA0KPiBbOTgyMzIuNjE1ODY3XSBDUjA6IDgwMDUwMDNi IENSMjogMDAwMDAyODAgQ1IzOiAzMmUzODc2MCBDUjQ6IDAwMDAwNmYwDQo+IFs5ODIzMi42MTU5 NDBdIFN0YWNrOg0KPiBbOTgyMzIuNjE2MDA4XSAgZjQwZTZjMDggZjVkMDJjYzAgMDAwMDAwMDgg ZjIyNmNhOWMgZjIyNmNhODAgZjlhMDNjYzAgDQo+IGYyMjZjYTljIGRlMmQzZjYwDQo+IFs5ODIz Mi42MTYzNjNdICBjMTJmNGY3MCBmNTJlMjE5MCAwMDAwMDAwMCBmNDBlNmMwMCAwMDAwMDAwOCBk ZTJkM2Y2OCANCj4gYzEyZjRmZjAgZGUyZDNmOTQNCj4gWzk4MjMyLjYxNjcxNl0gIGMxMTM5ZGM0 IDAwMDAwMDAxIDAwMDAwMDAwIDAwMDAwMDAwIGY0MGU2YzA4IGYyMmM5NTgwIA0KPiBmNTJlMjE5 MCBmNDk2NzE0MA0KPiBbOTgyMzIuNjE3MDY5XSBDYWxsIFRyYWNlOg0KPiBbOTgyMzIuNjE3MTQ3 XSAgWzxjMTJmNGY3MD5dID8gc29ja19yZWxlYXNlKzB4MjAvMHg5MA0KPiBbOTgyMzIuNjE3MjIx XSAgWzxjMTJmNGZmMD5dID8gc29ja19jbG9zZSsweDEwLzB4MjANCj4gWzk4MjMyLjYxNzI5Nl0g IFs8YzExMzlkYzQ+XSA/IF9fZnB1dCsweDg0LzB4MWIwDQo+IFs5ODIzMi42MTczNzNdICBbPGMx MDYzYzcxPl0gPyB0YXNrX3dvcmtfcnVuKzB4OTEvMHhkMA0KPiBbOTgyMzIuNjE3NDQ5XSAgWzxj MTNiYWQxNT5dID8gd29ya19ub3RpZnlzaWcrMHgxNi8weDFkDQo+IFs5ODIzMi42MTc1MzNdIENv ZGU6IDVlIDVmIDVkIGMzIDhkIGI0IDI2IDAwIDAwIDAwIDAwIDg5IGQ4IGU4IDI5IDY0IDhmIA0K PiBjNyAzMSBjMCA4MyBjNCAxMCA1YiA1ZSA1ZiA1ZCBjMyA4ZCBiNCAyNiAwMCAwMCAwMCAwMCA4 YiA4MyBmOCAwMSAwMCAwMCANCj4gMzEgYzkgPDhiPiA4MCA4MCAwMiAwMCAwMCA2NCBmZiAwOCA4 OSA4YiBmOCAwMSAwMCAwMCBlOSAwYSBmZiBmZiBmZiA4OQ0KPiBbOTgyMzIuNjE5NjYyXSBFSVA6 IFs8ZjlhMDM1ODA+XSBwcHBvZV9yZWxlYXNlKzB4MTIwLzB4MTUwIFtwcHBvZV0gDQo+IFNTOkVT UCAwMDY4OmRlMmQzZjJjDQo+IFs5ODIzMi42MTk4MzhdIENSMjogMDAwMDAwMDAwMDAwMDI4MA0K PiBbOTgyMzIuNjIwNDA5XSAtLS1bIGVuZCB0cmFjZSA2MWE5MWEyOTg3NmMxNmJhIF0tLS0NCj4g DQo+IEhlcmUncyBidWcgcGxhY2U6DQo+IChnZGIpIGxpc3QgKnBwcG9lX3JlbGVhc2UrMHgxMjAN Cj4gMHgxNTgwIGlzIGluIHBwcG9lX3JlbGVhc2UgDQo+ICgvdmFyL3Rlc3Rwb2ludC9MRUFGLW5l dy9zb3VyY2UvaTQ4Ni11bmtub3duLWxpbnV4LXVjbGliYy9saW51eC9saW51eC00LjEvZHJpdmVy cy9uZXQvcHBwL3BwcG9lLmM6NTk0KS4NCj4gNTg5ICAgICAgICB9DQo+IDU5MA0KPiA1OTEgICAg ICAgIHBvID0gcHBwb3hfc2soc2spOw0KPiA1OTINCj4gNTkzICAgICAgICBpZiAoc2stPnNrX3N0 YXRlICYgKFBQUE9YX0NPTk5FQ1RFRCB8IFBQUE9YX0JPVU5EIHwgDQo+IFBQUE9YX1pPTUJJRSkp IHsNCj4gNTk0ICAgICAgICAgICAgZGV2X3B1dChwby0+cHBwb2VfZGV2KTsNCj4gNTk1ICAgICAg ICAgICAgcG8tPnBwcG9lX2RldiA9IE5VTEw7DQo+IDU5NiAgICAgICAgfQ0KPiA1OTcNCj4gNTk4 ICAgICAgICBwcHBveF91bmJpbmRfc29jayhzayk7DQo+IA0KPiAtLQ0KPiBUbyB1bnN1YnNjcmli ZSBmcm9tIHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAidW5zdWJzY3JpYmUgbmV0ZGV2IiBpbg0K PiB0aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZw0KPiBN b3JlIG1ham9yZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1p bmZvLmh0bWwNCg0KSGksDQoNClRoaXMgYnVnIGlzIGJlaW5nIHdvcmtlZCBvbiBhbmQgZGlzY3Vz c2VkIGluIHRoZSBtYWlsaW5nIHRocmVhZCB0aXRsZWQNCiJbUEFUQ0ggbmV0XSBwcHA6IGRvbid0 IG92ZXJyaWRlIHNrLT5za19zdGF0ZSBpbiBwcHBvZV9mbHVzaF9kZXYoKSINCg0KaHR0cDovL3d3 dy5zcGluaWNzLm5ldC9saXN0cy9uZXRkZXYvbXNnMzQ1NTI4Lmh0bWwNCg0KT25lIHBhdGNoIGhh cyBhbHJlYWR5IGJlZW4gc3VibWl0dGVkLCBzZWUgY29tbWl0DQplNjc0MDE2NWI4ZjdmMDZkOGNh ZWUwZmNlYWIzZmI5ZDc5MGE2ZmVkDQoNClRoZSBzZWNvbmQgYW5kIChob3BlZnVsbHkpIGZpbmFs IHBhdGNoICh3aGljaCB5b3UgY2FuIHNlZSBpbiB0aGUgbWFpbGluZw0KbGlzdCB0aHJlYWQpIGlz IGN1cnJlbnRseSBiZWluZyB0ZXN0ZWQuDQoNClJlZ2FyZHMsDQpNYXR0DQoNCg==