From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E17DA19ADA3 for ; Tue, 22 Oct 2024 11:09:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.58.85.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729595343; cv=none; b=n2xWbyG4Ccd/TuAZDrgw8uPZ/lDSHsj/EXa0fM27pDbRH28Ui1ke6OY0ANL0AVdJXXKVE1epiuogAvcsKMAZZQkr3VFYwHHhh23JIT6sM18ibUG/3+KgsuqK7ezyTnobFJCwEOu1B0mBcX9iULLTZ/ZTokDNNay/9Je2JQ/MskM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729595343; c=relaxed/simple; bh=j/P5XcejjQdLAmnOA9ZylcRGFZcZRVaRls4QqwxeTnc=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: MIME-Version:Content-Type; b=cCuQzgWiIHyhPkt+Q0yoYUQYjptyu1uKl5qMhhK24+KawoZi9H4LYNy9pz7AynKdmwIS3GsiIwF9zQS5JDqh0CVtNMogp3vI3apQXnuCehKEhnpbIsY1N8iD147ysCHV4/wUi/8dLlyzmWu0xP5Qriy5Rpzfl/eDS0OOWUh0hNk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM; spf=pass smtp.mailfrom=aculab.com; arc=none smtp.client-ip=185.58.85.151 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aculab.com Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-9-IRasUf_yOseRZNZNNpdKww-1; Tue, 22 Oct 2024 12:07:47 +0100 X-MC-Unique: IRasUf_yOseRZNZNNpdKww-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 22 Oct 2024 12:07:46 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Tue, 22 Oct 2024 12:07:46 +0100 From: David Laight To: 'Bartosz Golaszewski' , Jiri Slaby CC: Kees Cook , Andy Shevchenko , "Andrew Morton" , James Bottomley , Greg KH , "linux-hardening@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Bartosz Golaszewski , "stable@vger.kernel.org" Subject: RE: [PATCH] lib: string_helpers: fix potential snprintf() output truncation Thread-Topic: [PATCH] lib: string_helpers: fix potential snprintf() output truncation Thread-Index: AQHbJFRQeh3oqbVfUku0a/hfxUzxIbKSma/Q Date: Tue, 22 Oct 2024 11:07:46 +0000 Message-ID: References: <20241021100421.41734-1-brgl@bgdev.pl> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 RnJvbTogQmFydG9zeiBHb2xhc3pld3NraQ0KPiBTZW50OiAyMiBPY3RvYmVyIDIwMjQgMDg6MzAN Cj4gDQo+IE9uIFR1ZSwgT2N0IDIyLCAyMDI0IGF0IDk6MTXigK9BTSBKaXJpIFNsYWJ5IDxqaXJp c2xhYnlAa2VybmVsLm9yZz4gd3JvdGU6DQo+ID4NCj4gPiBPbiAyMS4gMTAuIDI0LCAxMjowNCwg QmFydG9zeiBHb2xhc3pld3NraSB3cm90ZToNCj4gPiA+IEZyb206IEJhcnRvc3ogR29sYXN6ZXdz a2kgPGJhcnRvc3ouZ29sYXN6ZXdza2lAbGluYXJvLm9yZz4NCj4gPiA+DQo+ID4gPiBUaGUgb3V0 cHV0IG9mICIuJTAzdSIgd2l0aCB0aGUgdW5zaWduZWQgaW50IGluIHJhbmdlIFswLCA0Mjk0OTY2 Mjk1XSBtYXkNCj4gPiA+IGdldCB0cnVuY2F0ZWQgaWYgdGhlIHRhcmdldCBidWZmZXIgaXMgbm90 IDEyIGJ5dGVzLg0KPiA+DQo+ID4gUGVyaGFwcywgaWYgeW91IGVsYWJvcmF0ZSBvbiBob3cgJ3Jl bWFpbmRlcicgY2FuIGJlY29tZSA+IDk5OT8NCj4gPg0KPiANCj4gWWVhaCwgSSBndWVzcyBpdCBj YW4ndC4gTm90IHN1cmUgd2hhdCB3ZSBkbyBhYm91dCBzdWNoIGZhbHNlDQo+IHBvc2l0aXZlcywg ZG8gd2UgaGF2ZSBzb21lIGNvbW1vbiB3YXkgdG8gc3VwcHJlc3MgdGhlbT8NCg0KVGhlIG9ubHkg d2F5IEkndmUgZm91bmQgaXMgdG8gJ2xhdW5kZXInIHRoZSBidWZmZXIgc2l6ZSB1c2luZw0KT1BU SU1JU0VSX0hJREVfVkFSKCkuDQpBbHRob3VnaCBJIGNhbiBpbWFnaW5lIGFuIHVwZGF0ZSB0byBn Y2MgdGhhdCBjaGVja3Mgc2l6ZW9mIChidWZmZXIpDQphcyB3ZWxsIC0gc28gdGhhdCB3b3VsZCBh bHNvIG5lZWQgbGF1bmRlcmluZy4NCg0KWW91IGFjdHVhbGx5IHdhbnQ6DQojZGVmaW5lIE9QVElN RVJfSElERV9WQUwoeCkgXA0KICAoeyBfX2F1dG9fdHlwZSBfeCA9IHg7IE9QVElNRVJfSElERV9W QVIoX3gpOyBfeDt9KQ0Kc28geW91IGNhbiBkbzoNCglzbnByaW50ZihPUFRJTUlTRVJfSElERV9W QUwoYnVmZmVyKSwgT1BUT01JU0VSX0hJREVfVkFMKHNpemVvZiBidWZmZXIpLCBmbXQsIC4uLikN Cg0KUGVyaGFwcyB0aGF0IGNvdWxkIGJlIHNucHJpbnRfdHJ1bmNhdGUoKSA/DQoNCglEYXZpZA0K DQotDQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFy bSwgTWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAo V2FsZXMpDQo=