From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9938CE728CB for ; Fri, 29 Sep 2023 17:07:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 394238D00F2; Fri, 29 Sep 2023 13:07:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 31C928D00E3; Fri, 29 Sep 2023 13:07:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1BDEB8D00F2; Fri, 29 Sep 2023 13:07:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 092D58D00E3 for ; Fri, 29 Sep 2023 13:07:08 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id C216B1A0B2C for ; Fri, 29 Sep 2023 17:07:07 +0000 (UTC) X-FDA: 81290265294.02.BA7B16D Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) by imf20.hostedemail.com (Postfix) with ESMTP id D67921C001D for ; Fri, 29 Sep 2023 17:07:05 +0000 (UTC) Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=Siva0vle; dmarc=pass (policy=none) header.from=chromium.org; spf=pass (imf20.hostedemail.com: domain of keescook@chromium.org designates 209.85.214.170 as permitted sender) smtp.mailfrom=keescook@chromium.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1696007225; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=AsjkU9sd/Uxf4RtLULirbDyU2qsyvP7kZCyEPcyynys=; b=YuUpSxTMvoFSWSdYgEobWKg/3rvc/2zGXg6l4p86I9mBGU6WuUMR2jFLxMijU/XRqKgWG5 s8wReSsZkzWhJiWBLLGWGQIMQph62YILrsYBXb2hy7RT9b2sVILlzU7YGLeKvvmTAJCCOL Z2pVrKskhM0n+itAfNoOukqiqlf/6sk= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=Siva0vle; dmarc=pass (policy=none) header.from=chromium.org; spf=pass (imf20.hostedemail.com: domain of keescook@chromium.org designates 209.85.214.170 as permitted sender) smtp.mailfrom=keescook@chromium.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1696007225; a=rsa-sha256; cv=none; b=ieAsMtoA2gg52WL+8WQy5/xwWshOKb7vT6Nv8hzyZ7MeXn7F6OLXj5jjSzeuTefU4vNcX2 xM8nKInQ1v+OkIlqJxDCiifw0kK+vlPLX0nQ1eBRPlZjD4fW9vBKYbV46aYRrBYaxEF0oD 31W9HCTAQkAgDQ+/xgmKS7hde6y+XrA= Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1c61bde0b4bso86388605ad.3 for ; Fri, 29 Sep 2023 10:07:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1696007225; x=1696612025; darn=kvack.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=AsjkU9sd/Uxf4RtLULirbDyU2qsyvP7kZCyEPcyynys=; b=Siva0vlevwK3ELxygVvte4GitylbxJeIqSrheGvvYn0I52UY/FVFf5ICnwM0DVfOGi vBB5Z4RWSJRBYAM/kFz04WqYUu9X5QtOluw8P4qRfdKoElVbtQBovfPfjQpESwT9Qw8D 8fhXnuFmt0vgx+HoZr+yXRlbnMPBd5QPtf4ak= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696007225; x=1696612025; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=AsjkU9sd/Uxf4RtLULirbDyU2qsyvP7kZCyEPcyynys=; b=smA/emxP/f1nIPt8s3I2nGkYihOqLS9/tjni0ifl536blOpSIrF0STjtsY09woJiIT 0A5tnaVWl8bu5hgX9wysPUtxf4Xds+T6kPd1dJ37/DgQtuiXYgd+I9TtMyI83Y9Bix8l 675gqkjcX3i9fcCldfvt0fQQwGafrPmFaj4+R2CQQwyQGJDd/I8EfwZqEoGFxk94jFJz PQQoec5v0KyDiEC7IS9QFWIZH07MZr44h3Yhzm8si+4NhdsReepQb18AywjQCRs0GENa sNBWHnQifhPsfUgEXYxrMO6QiP5LDKXq2BXHhB9i+Qrn6SbmNIcXRHpMlbXsGy3DgAXR yYFQ== X-Gm-Message-State: AOJu0YxsN3ZYoq+cP+l+kMuHeXdoN8c16irDRu8FsTvYB8MDCsP51Y9H raOs3EL/yNt2Tmy0MmqvL5gU7EGRKBSSv21n2Hc= X-Google-Smtp-Source: AGHT+IGoHObC+sZwgjMlD4gRGJqzF6I88du7DuaXRNll+YfQeWUWgm8kyHo8H1I8fA8ubS/sIoCPug== X-Received: by 2002:a17:903:1ca:b0:1c3:e5bf:a9f8 with SMTP id e10-20020a17090301ca00b001c3e5bfa9f8mr6044483plh.19.1696007224586; Fri, 29 Sep 2023 10:07:04 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id iw15-20020a170903044f00b001c5d09e9437sm17218637plb.25.2023.09.29.10.07.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 10:07:04 -0700 (PDT) Date: Fri, 29 Sep 2023 10:07:03 -0700 From: Kees Cook To: Pedro Falcato Cc: Eric Biederman , Sebastian Ott , Thomas =?iso-8859-1?Q?Wei=DFschuh?= , Al Viro , Christian Brauner , Andrew Morton , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH v4 0/6] binfmt_elf: Support segments with 0 filesz and misaligned starts Message-ID: <202309291006.E9FB95D0B@keescook> References: <20230929031716.it.155-kees@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: D67921C001D X-Stat-Signature: psq9iu4usn6afrnxadoow3gjczo3pf1m X-HE-Tag: 1696007225-857736 X-HE-Meta: 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 Hj5m3zv6 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.096429, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Sep 29, 2023 at 12:58:18PM +0100, Pedro Falcato wrote: > So on that end, you can take my > > Tested-by: Pedro Falcato Thanks! -- Kees Cook