From owner-freebsd-hackers@freebsd.org Tue Apr 23 11:15:31 2019 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D0DF31596BD6 for ; Tue, 23 Apr 2019 11:15:31 +0000 (UTC) (envelope-from mindal@semihalf.com) Received: from mail-qt1-x82d.google.com (mail-qt1-x82d.google.com [IPv6:2607:f8b0:4864:20::82d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 61E646CD0A for ; Tue, 23 Apr 2019 11:15:30 +0000 (UTC) (envelope-from mindal@semihalf.com) Received: by mail-qt1-x82d.google.com with SMTP id b3so658371qtc.12 for ; Tue, 23 Apr 2019 04:15:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=rIo6h1W9jSAYJ7TSr2szMI0TdIhMDJcyMj+l/D5AYA8=; b=oUtxAT1CfdFKQWGL70YLjgyFlgIcr0Fba8BGsDCIzTAZNWGgyuoS6O8SFwDoAEoHFF JoK3W+gaterup+1VA+oROeShj9XmokyoZPaxR/xWVyNeUNViBluicCdr1Ymb9YCe9Z20 SsmRrLKuSmVCLsmcGTAdTprvtRDfWtszMWKGh5vOQRRZFR0muKJ5UQTVlkwwKV+VV0o5 J3ZHHqieiznUuZdys13GBwDDqJ6s0v6QHVrtvIHYLxxJFPbN7CAh1OlbXqSXR4JHSjaI y4rXVGyvk6JzRV6cwEOMIFlsuMvuP83LlV5RK2CLnZfOvXzhpA+oe5RLwkmVCuQpXLUT e6tw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=rIo6h1W9jSAYJ7TSr2szMI0TdIhMDJcyMj+l/D5AYA8=; b=dn5ldUQyPjHWIlW1YSUgtxgmxK8iG908pwS39O+IvCYOULNJu7E5NWfdlPvU5CemIY eOj7Z1i6+nMSBWWs2j7HZW2hYOBtGwsNE/vV0JLc2pY9B1cUvKSDQIUb9SFeV8m13UNr 5vWUOTLCfXRHl8uV4+ZKVBGWw4sc7spMNDwmLZ+NI7gsjRlS9My4qDDtnwK6OcKyHY4J Y75+vCylygoutRGpLiRd5mRedOpGLX870xmjTS7gv3l2fSl1ZOmbtlDup8WYaRsLnLAg OXWcj/BchVHgDXXTAsuPhDNPUfQTP92sB1O7tNN39TPyFSRmUlgcvYwWBbZJe8gmtwcQ INQg== X-Gm-Message-State: APjAAAUGBVJjisQdy3qLZO1+aeGlUcFhkYb9XJK2rX0/71wiE2PrzUN+ APidWLvmILd8FoWkiSwb4/GLb5X4UypiLjTrmXEKFyzXZ4g= X-Google-Smtp-Source: APXvYqzZI7+6J2XSuZahuuMIUETercVo87V7KM5rWC446VTcPIUDzPNBl6hqaSSrIsrQi+wx9issCsSi7NsMCLnhv1E= X-Received: by 2002:ac8:fc8:: with SMTP id f8mr19735646qtk.214.1556018129679; Tue, 23 Apr 2019 04:15:29 -0700 (PDT) MIME-Version: 1.0 From: =?UTF-8?Q?Kornel_Dul=C4=99ba?= Date: Tue, 23 Apr 2019 13:15:18 +0200 Message-ID: Subject: W^X support in FreeBSD To: freebsd-hackers@freebsd.org X-Rspamd-Queue-Id: 61E646CD0A X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=semihalf-com.20150623.gappssmtp.com header.s=20150623 header.b=oUtxAT1C X-Spamd-Result: default: False [-6.17 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[semihalf-com.20150623.gappssmtp.com:s=20150623]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DMARC_NA(0.00)[semihalf.com]; DKIM_TRACE(0.00)[semihalf-com.20150623.gappssmtp.com:+]; MX_GOOD(-0.01)[ASPMX2.GOOGLEMAIL.com,ALT2.ASPMX.L.GOOGLE.com,ASPMX.L.GOOGLE.com,ALT1.ASPMX.L.GOOGLE.com,ASPMX3.GOOGLEMAIL.com]; RCVD_IN_DNSWL_NONE(0.00)[d.2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; NEURAL_HAM_SHORT(-0.96)[-0.961,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; IP_SCORE(-2.90)[ip: (-9.08), ipnet: 2607:f8b0::/32(-3.11), asn: 15169(-2.25), country: US(-0.06)] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Apr 2019 11:15:32 -0000 Hello, After doing some research I've noticed that FBSD is pretty much the only *BSD system without support for some sort of W^X policy. Also said policy is implemented in HardenedBSD which looks pretty much similar to FBSD. Would there be interest in reviewing/merging a patch that imports W^X (PAGEEXEC and MPROTECT) from HardenedBSD? I suppose that it would have to be disabled by default, as it breaks some things such as JIT. Regards Kornel Dul=C4=99ba