Return-Path: Received: from mail-cys01nam02hn0225.outbound.protection.outlook.com ([104.47.37.225]:10880 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752606AbeDQVyl (ORCPT ); Tue, 17 Apr 2018 17:54:41 -0400 From: Trond Myklebust To: "bfields@fieldses.org" , "syzbot+4b98281f2401ab849f4b@syzkaller.appspotmail.com" CC: "syzkaller-bugs@googlegroups.com" , "anna.schumaker@netapp.com" , "davem@davemloft.net" , "linux-kernel@vger.kernel.org" , "linux-nfs@vger.kernel.org" , "jlayton@kernel.org" , "netdev@vger.kernel.org" Subject: Re: general protection fault in encode_rpcb_string Date: Tue, 17 Apr 2018 21:54:36 +0000 Message-ID: <1524002074.63751.5.camel@hammer.space> References: <20180417213308.GC18217@fieldses.org> In-Reply-To: <20180417213308.GC18217@fieldses.org> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gVHVlLCAyMDE4LTA0LTE3IGF0IDE3OjMzIC0wNDAwLCBKLiBCcnVjZSBGaWVsZHMgd3JvdGU6 DQo+IE9uIE1vbiwgQXByIDE2LCAyMDE4IGF0IDA5OjAyOjAxUE0gLTA3MDAsIHN5emJvdCB3cm90 ZToNCj4gPiBzeXpib3QgaGl0IHRoZSBmb2xsb3dpbmcgY3Jhc2ggb24gYnBmLW5leHQgY29tbWl0 DQo+ID4gNWQxMzY1OTQwYTY4ZGQ1N2IwMzFiNmUzYzA3ZDdkNDUxY2Q2OWRhZiAoVGh1IEFwciAx MiAxODowOTowNSAyMDE4DQo+ID4gKzAwMDApDQo+ID4gTWVyZ2UgZ2l0Oi8vZ2l0Lmtlcm5lbC5v cmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0L2RhdmVtL25ldA0KPiA+IHN5emJvdCBkYXNoYm9h cmQgbGluazoNCj4gPiBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS9idWc/ZXh0aWQ9NGI5 ODI4MWYyNDAxYWI4NDlmNGINCj4gPiANCj4gPiBTbyBmYXIgdGhpcyBjcmFzaCBoYXBwZW5lZCAy IHRpbWVzIG9uIGJwZi1uZXh0Lg0KPiA+IEMgcmVwcm9kdWNlcjogaHR0cHM6Ly9zeXprYWxsZXIu YXBwc3BvdC5jb20veC9yZXByby5jP2lkPTY0MzM4MzU2MzMNCj4gPiA4Njg4MDANCj4gPiBzeXpr YWxsZXIgcmVwcm9kdWNlcjoNCj4gPiBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L3Jl cHJvLnN5ej9pZD02NDA3MzExNzk0ODk2ODk2DQo+ID4gUmF3IGNvbnNvbGUgb3V0cHV0Og0KPiA+ IGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvbG9nLnR4dD9pZD01ODYxNTExMTc2MTI2 NDY0DQo+IA0KPiBCYXNlZCBvbiB0aGF0LCBsb29rcyBsaWtlIGl0J3MgYXR0ZW1wdGluZyBhbiBu ZnMgbW91bnQgd2hpbGUgY2F1c2luZw0KPiBrbWFsbG9jIGZhaWx1cmVzPw0KPiANCj4gUHJvYmFi bHkgb25lIG9mIHJwY2ItPnJfbmV0aWQsIHJfYWRkciwgb3Igcl9vd25lciB3YXMgYmFkIGluDQo+ IHJwY2JfZW5jX2dldGFkZHIuDQo+IA0KPiBIbSwgYW5kIHByZXZpb3VzIGxvZyBtYWtlcyBpdCBs b29rIGxpa2UgaXQgd2FzIGFuDQo+IHJwY19zb2NrYWRkcjJ1YWRkcigpDQo+IGluIHJwY2JfZ2V0 cG9ydF9hc3luYygpIHRoYXQgd2FzIG1hZGUgdG8gZmFpbC4gIERvIHdlIG5lZWQgdG8gY2hlY2sN Cj4gZm9yDQo+IGZhaWx1cmUgb2Y6DQo+IA0KPiAJbWFwLT5yX2FkZHIgPSBycGNfc29ja2FkZHIy dWFkZHIoc2FwLCBHRlBfQVRPTUlDKTsNCj4gDQo+ID8NCg0KWWVzLCBhbmQgd2UgY2FuIHByb2Jh Ymx5IGNvbnZlcnQgaXQsIGFuZCB0aGUgb3RoZXIgR0ZQX0FUT01JQw0KYWxsb2NhdGlvbnMgaW4g dGhlIHJwY2JpbmQgY2xpZW50IHRvIHVzZSBHRlBfTk9GUyBpbiBvcmRlciB0byBpbXByb3ZlDQpy ZWxpYWJpbGl0eS4NCg0KQ2hlZXJzDQogIFRyb25kDQotLSANClRyb25kIE15a2xlYnVzdA0KTGlu dXggTkZTIGNsaWVudCBtYWludGFpbmVyLCBIYW1tZXJzcGFjZQ0KdHJvbmQubXlrbGVidXN0QGhh bW1lci5zcGFjZQ0K