Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx12.netapp.com ([216.240.18.77]:62653 "EHLO mx12.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757044Ab3G3VUn (ORCPT ); Tue, 30 Jul 2013 17:20:43 -0400 From: "Myklebust, Trond" To: "J. Bruce Fields" CC: "Eric W. Biederman" , Oleg Nesterov , =?utf-8?B?VG9yYWxmIEbDtnJzdGVy?= , "Serge E. Hallyn" , Andrey Vagin , "Al Viro" , Linux NFS mailing list , Stanislav Kinsbursky Subject: Re: fuzz tested user mode linux core dumps in fs/lockd/clntproc.c:131 (nfs in a netns utsns problems?) Date: Tue, 30 Jul 2013 21:20:32 +0000 Message-ID: <1375219230.2468.7.camel@leira.trondhjem.org> References: <51F39AE8.3090401@gmx.de> <20130727170051.GA31447@redhat.com> <87iozujkdy.fsf@xmission.com> <87r4eii4td.fsf@xmission.com> <20130729141758.GA8505@redhat.com> <871u6h45zy.fsf_-_@xmission.com> <20130730211202.GH1443@fieldses.org> In-Reply-To: <20130730211202.GH1443@fieldses.org> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gVHVlLCAyMDEzLTA3LTMwIGF0IDE3OjEyIC0wNDAwLCBKLiBCcnVjZSBGaWVsZHMgd3JvdGU6 DQo+IE9uIE1vbiwgSnVsIDI5LCAyMDEzIGF0IDEwOjQyOjU3QU0gLTA3MDAsIEVyaWMgVy4gQmll ZGVybWFuIHdyb3RlOg0KPiA+IA0KPiA+IEFkZGluZyBzb21lIHBlb3BsZSB3aG8gcGF5IG1vcmUg YXR0ZW50aW9uIHRvIG5mcyBpbiBuZXR3b3JrIG5hbWVzcGFjZXMNCj4gPiB0aGFuIEkgdXN1YWxs eSBkby4NCj4gPiANCj4gPiBPbGVnIE5lc3Rlcm92IDxvbGVnQHJlZGhhdC5jb20+IHdyaXRlczoN Cj4gPiANCj4gPiA+IE9uIDA3LzI4LCBFcmljIFcuIEJpZWRlcm1hbiB3cm90ZToNCj4gPiA+Pg0K PiA+ID4+ID4gVGhpcyB1bnRlc3RlZCBwYXRjaCBzaG91bGQgZml4IGl0IHdpdGhvdXQgYW55IG5l ZWQgdG8gd29ycnkgYWJvdXQNCj4gPiA+PiA+IGR5bmFtaWMgYmVoYXZpb3IuDQo+ID4gPg0KPiA+ ID4gWWVlZXMgOykgSSB3YXMgdGhpbmtpbmcgYWJvdXQgdGhpcyBjaGFuZ2UgdG9vLCBidXQgSSBo YXZlIG5vIGlkZWENCj4gPiA+IHdoYXQgdGhpcyAtPm5vZGVuYW1lIGFjdHVhbGx5IG1lYW5zIGZv ciBuZnMuDQo+ID4gPg0KPiA+ID4gSWYgeW91IGFyZSBnb2luZyB0byBzZW5kIHRoaXMgcGF0Y2gg LSBncmVhdCENCj4gPiANCj4gPiBKdXN0IGJhdHRpbmcgaXQgYXJvdW5kIGZvciBub3csIGFuZCBo b3Bpbmcgd2UgaGF2ZSB0aGUgcmlnaHQgY29tYmluYXRpb24NCj4gPiBvZiBleWViYWxscyBsb29r IGF0IGl0LiAgVGhlcmUgYXJlIG1vcmUgcGxhY2VzIGluIG5mcyB0aGF0IGhhdmUNCj4gPiBxdWVz dGlvbmFibGUgdXNlcyBvZiB1dHNuYW1lKCkgaW5zdGVhZCBvZiBpbml0X3V0c25hbWUoKS4gIFNv IEkgdGhpbmsgd2UNCj4gPiBwcm9iYWJseSBuZWVkIGEgbW9yZSBjb21wcmVoZW5zaXZlIHBhdGNo IGF0IHRoZSB2ZXJ5IGxlYXN0Lg0KPiA+IA0KPiA+IG5mc2NsbnRfcmVjbGFpbSBpcyBuZXZlciBj YWxsZWQgZnJvbSB1c2Vyc3BhY2UuDQo+IA0KPiBTbywgbG9va2luZyBqdXN0IGF0IHRoaXMgb25l Li4uLg0KPiANCj4gTm90ZSBJIHRoaW5rIHlvdSBtZWFuIG5sbWNsbnRfcmVjbGFpbS4NCj4gDQo+ IFRoYXQncyBwYXJ0IG9mIHRoZSBjbGllbnQncyBoYW5kbGluZyBvZiBzZXJ2ZXIgcmVib290cy4g IFRoZSBjbGllbnQNCj4ga25vd3MgdGhhdCBpdCBzaG91bGQgaG9sZCBzb21lIGZpbGUgbG9jaywg YnV0IGtub3dzIHRoYXQgdGhlIHNlcnZlciBoYXMNCj4gbm93IGZvcmdvdHRlbiB0aGF0IGZhY3Qs IGFuZCBuZWVkcyB0byBzZW5kIGEgInJlY2xhaW0iIHRvIGdldCB0aGUgbG9jaw0KPiBiYWNrLg0K PiANCj4gVGhhdCByZWNsYWltIHdpbGwgZ2V0IGtpY2tlZCBvZmYgd2hlbiB0aGUgY2xpZW50J3Mg bm90aWZpZWQgdGhhdCB0aGUNCj4gc2VydmVyIHJlYm9vdGVkLg0KPiANCj4gU28gd2UncmUgbm90 IGluIHRoZSBjb250ZXh0IG9mIHdob2V2ZXIgb3JpZ2luYWxseSBkaWQgdGhlDQo+IGZjbnRsKC4s Rl9TRVRMSywuKSwgYW5kIHRyeWluZyB0byBnZXQgdGhlIG5hbWVzcGFjZSBvdXQgb2YgY3VycmVu dCBpcw0KPiBjbGVhcmx5IHdyb25nLg0KPiANCj4gbmxtX2hvc3QgY3VycmVudGx5IGhhcyBhICJz dHJ1Y3QgbmV0ICpuZXQiIGZpZWxkLiAgTWF5YmUgd2UgYWxzbyBuZWVkIHRvDQo+IHN0YXNoIGEg InN0cnVjdCB1dHNfbmFtZXNwYWNlICoiLCBvciBqdXN0IGEgY29weSBvZiB0aGUgbm9kZW5hbWU/ DQoNClRoZSBzdHJ1Y3QgcnBjX2NsbnQgYWxyZWFkeSBoYXMgdGhhdCBpbmZvcm1hdGlvbiBpbiB0 aGUgY2xfbm9kZW5hbWUNCmZpZWxkLg0KDQpDaGVlcnMNCiAgVHJvbmQNCg0KLS0gDQpUcm9uZCBN eWtsZWJ1c3QNCkxpbnV4IE5GUyBjbGllbnQgbWFpbnRhaW5lcg0KDQpOZXRBcHANClRyb25kLk15 a2xlYnVzdEBuZXRhcHAuY29tDQp3d3cubmV0YXBwLmNvbQ0K