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[209.132.180.67]) by mx.google.com with ESMTP id r1-v6si5331973plb.430.2018.04.20.01.47.22; Fri, 20 Apr 2018 01:47:37 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=telfort.nl Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754166AbeDTIqP (ORCPT + 99 others); Fri, 20 Apr 2018 04:46:15 -0400 Received: from smtp.radex.nl ([178.250.146.7]:47507 "EHLO radex-web.radex.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753918AbeDTIqO (ORCPT ); Fri, 20 Apr 2018 04:46:14 -0400 X-Greylist: delayed 411 seconds by postgrey-1.27 at vger.kernel.org; Fri, 20 Apr 2018 04:46:14 EDT Received: from ferry-quad.localnet (cust-178-250-146-69.breedbanddelft.nl [178.250.146.69]) by radex-web.radex.nl (Postfix) with ESMTP id 1104F24081; Fri, 20 Apr 2018 10:39:22 +0200 (CEST) From: Ferry Toth To: Mike Galbraith Cc: lkml Subject: Re: DOS by unprivileged user Date: Fri, 20 Apr 2018 10:39:21 +0200 Message-ID: <1911073.n8LaRrY1S6@ferry-quad> In-Reply-To: <1524199618.5757.3.camel@gmx.de> References: <9023506.UBh6vynRGa@delfion> <1524199618.5757.3.camel@gmx.de> MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T3AgdnJpamRhZyAyMCBhcHJpbCAyMDE4IDA2OjQ2OjU4IENFU1Qgc2NocmVlZiBNaWtlIEdhbGJy YWl0aDoKPiBPbiBUaHUsIDIwMTgtMDQtMTkgYXQgMjE6MTMgKzAyMDAsIEZlcnJ5IFRvdGggd3Jv dGU6Cj4gPiBJdCBhcHBlYXJzIGFueSBvcmRpbmFyeSB1c2VyIGNhbiBlYXNpbHkgY3JlYXRlIGEg RE9TIG9uIGxpbnV4Lgo+ID4gCj4gPiBPbmUgc3VyZSB3YXkgdG8gcmVwcm9kdWNlIHRoaXMgaXMg dG8gb3BlbiBnaXRrIG9uIHRoZSBsaW51eCBrZXJuZWwgcmVwbyAKPiA+IChTSUMpIG9uIGEgbWFj aGluZSB3aXRoIDhHQiBSQU0gMTYgR0Igc3dhcCBvbiBhIEhERCB3aXRoIGJ0cmZzIGFuZCBxdWFk IGNvcmUgCj4gPiArIGh5cGVydGhyZWFkaW5nLiBCdXQgSSB3aWxsIGJlIGVhc3kgZW5vdWdoIHRv IGdldCB0aGUgc2FtZSBlZmZlY3Qgd2l0aCBtb3JlIAo+ID4gUkFNLCBvdGhlciBmcyBldGMuCj4g PiAKPiA+IEluIHRoaXMgY2FzZSBnaXRrIGFsbG9jYXRlcyBtb3JlIGFuZCBtb3JlIG1lbW9yeSAo dW50aWwgbXkgc3lzdGVtIGZyZWV6ZXMgCj4gPiA2LjVHQiBvZiA3LjVHQiBhdmFpYWJsZSksIHRo ZSBzeXN0ZW0gc3RhcnRzIHN3YXBwaW5nIG9yIHdyaXRpbmcgdG8gdG1wIGZpbGVzIAo+ID4gKGNh bid0IGludmVzdGlnYXRlIGFzIHRoZXJlIGlzIG5vIHRpbWUgdW50aWwgaXQgZnJlZXplcykgYW5k IHRoZSBpbyB3YWl0IAo+ID4gZ29lcyB0byAxMDAlIG9uIGFsbCBjb3Jlcy4gQXQgdGhpcyBwb2lu dCBpdCBpcyBpbXBvc3NpYmxlIHRvIGxvZ2luIGZyb20gCj4gPiByZW1vdGUgYW5kIGxvY2FsIGtl eWJvYXJkIGFuZCBtb3VzZSBhcmUgZnJvemVuLiBIYXJkIHJlc2V0IGlzIHRoZSBvbmx5IHdheSAK PiA+IG91dCBhdCB0aGlzIHBvaW50Lgo+IAo+IGRhdGFwb2ludDogbXkgaTQ3OTAvZXh0NCBib3gg cnVubmluZyBtYXN0ZXIueWVzdGVyZGF5IGJvb3RlZCBtZW09OEcKPiBiZWNhbWUgaGlnaGx5IHVu cGxlYXNhbnQgdG8gdXNlLCBidXQgSSByZXRhaW5lZCBjb250cm9sLCBhbmQgdGhlIGFsbAo+IGNv cmVzIGdvaW5nIHRvIDEwMCUgdGhpbmcgZGlkIG5vdCBoYXBwZW4gYXQgYW55IHRpbWUuCj4gCj4g SSBkaWRuJ3QgdHJ5IGNvbnN0cmFpbmluZyBvbiB0aGUgZ2l0ayB1c2VyLCBqdXN0IHR1cm5lZCBp dCBsb29zZSBhIGZldwo+IHRpbWVzIHRvIHNlZSBpZiBpdCBtYW5hZ2VkIHRvIHJlbmRlciBib3gg ZWZmZWN0aXZlbHkgZGVhZC4gIEl0IGZhaWxlZAo+IHRvIGtpbGwgbXkgYm94LCBidXQgKGV4cGVj dGVkbHkpIGRpZCBtYWtlIGl0IHN1Y2sgcm9ja3MuCj4gCj4gCS1NaWtlCj4gCgpZZXMsIG1pZ2h0 IGJlIGxlc3MgZHJhbWF0aWMgd2l0aCBleHQ0IHRoYW4gd2l0aCBidHJmcyAoQ09XIGljdyBmc3lu YyBvbiBoZGQnAHMgZGVzdHJveXMgcGVyZm9ybWFuY2UgCm9mIHRoaW5ncyBsaWtlIHZpcnR1YWxi b3gsIGRhdGFiYXNlcywgZHBrZykuCgpOZXZlcnRoZWxlc3MgSSBmZWVsIG9uZSBwcm9jZXNzIHNo b3VsZCBub3QgYmUgYWxsb3dlZCB0byBoYXJtIG90aGVyIHByb2Nlc3NlcyBieSBkZW55aW5nIHRo ZW0gcmVzb3VyY2VzLiBFdmVuIGlmIHdoZW4gYnRyZnMgbWFrZXMgaXQgZWFzeSBhYnVzZSBJIHRo aW5rIHRoZSBzY2hlZHVsZXIgc2hvdWxkIGhhdmUgdGhyb3R0bGVkIGdpdGsu