From nobody Mon Jan 24 06:42:19 2022 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id C7947198798B for ; Mon, 24 Jan 2022 06:42:32 +0000 (UTC) (envelope-from mw@semihalf.com) Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Jj0lq6nsHz4nx3 for ; Mon, 24 Jan 2022 06:42:31 +0000 (UTC) (envelope-from mw@semihalf.com) Received: by mail-lf1-x129.google.com with SMTP id x11so47146368lfa.2 for ; Sun, 23 Jan 2022 22:42:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=ijuWut4geqPKPh/8WkxUN3qXWdscKvBN040o1zbaDQs=; b=1KOjjHbfJmunyepNjQ7J5fruxayYmP9RSq0aDb8IqqR5gBry8UJTRE1vVjuZy+a9tB AaMXi6WCnd+8OWTYSE7pliO44u2Rum5NNUpQ5nHbtavppzEyr0/7pUB9CCmN/IjkfAEW ombiUTzY7EprIhN4HSFO7aGI0GwhYZHBYfYsw4BUXGDQSA7NEYcj9GvrxEP9Kd7gPZFK c/Hb7VvI98o0bENYoJ8Lqj1cWbAtLOWLW/RCuCCgf5G7Mr0vKiKFqctw1z9SApwbfJ+k 7BfxU/c2ZNEfZXWtxKruC8WlQ2eOQX162NPiDKDjLAxeZG4PN3TcyZF2VUy995kAJV7m 3mLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=ijuWut4geqPKPh/8WkxUN3qXWdscKvBN040o1zbaDQs=; b=CVMV37S3vQIrvmlqUlZAwwKDs4BoFaLwa2BubD8njbIdCRHVUz/3kt0gwnPvVVNJf+ WnPj0R4RANDH0JEyHt+RRiq0DZpie8sN+K2iaIKR0mDg/yJQsF/aLSd7Z27OdfpTGzgY qeoEhXSLSHCEnae20dTfFr7ZOFFw0zj07K6dCQX0SPnIiHW/cIxI9X4k7CYbZtfS6O5m VOeNrq9zk1Xsbv3LntVyc0olveCBDxVJpQRxJHzMs+L2B+6jNDqz92FBWCnmecVsExW5 TY4QnUNXQaAnzT7bopnnZiq4T46418/Ye+nYGgaI4nOX0ALdfjAE/ORjrakSPTN5Q16Q ZtBQ== X-Gm-Message-State: AOAM5320i8of3IYkjsfSFPh7ycFU8eFkZ95kzFFyresyQ5ez89RIl4f3 I6hTW7hazwl7nSMr0SeIB7H2v3SEgFose0Nex0yNn8yy5LU= X-Google-Smtp-Source: ABdhPJz6PD80glr+e6CJ8BOiUOpjGrH4CYgt821mTmsWOvrViQuqgzwrLCz8Bp6liMjzp9g6kdSSc0nKh8JP7lopahc= X-Received: by 2002:a05:6512:785:: with SMTP id x5mr10580349lfr.614.1643006550363; Sun, 23 Jan 2022 22:42:30 -0800 (PST) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 References: In-Reply-To: From: Marcin Wojtas Date: Mon, 24 Jan 2022 07:42:19 +0100 Message-ID: Subject: Re: HEADS-UP: PIE enabled by default on stable/13 To: freebsd-stable@freebsd.org Cc: freebsd-current Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 4Jj0lq6nsHz4nx3 X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=pass header.d=semihalf-com.20210112.gappssmtp.com header.s=20210112 header.b=1KOjjHbf; dmarc=none; spf=none (mx1.freebsd.org: domain of mw@semihalf.com has no SPF policy when checking 2a00:1450:4864:20::129) smtp.mailfrom=mw@semihalf.com X-Spamd-Result: default: False [0.70 / 15.00]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[semihalf-com.20210112.gappssmtp.com:s=20210112]; FREEFALL_USER(0.00)[mw]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_SPAM_SHORT(1.00)[1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[semihalf.com]; NEURAL_SPAM_MEDIUM(1.00)[1.000]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[semihalf-com.20210112.gappssmtp.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::129:from]; MLMMJ_DEST(0.00)[freebsd-current]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-ThisMailContainsUnwantedMimeParts: N +freebsd-stable@ niedz., 23 sty 2022 o 11:36 Marcin Wojtas napisa=C5=82(a)= : > > Hi, > > As of 396e9f259d962 the base system binaries are now built as position-in= dependent executable (PIE) by default, for 64-bit architectures. Thanks to = that enabling ASLR can be done simply > by sysctls knobs when booting the kernel. > > If you track stable/13 and normally build WITHOUT_CLEAN you'll need to do= one initial clean build -- either run `make cleanworld` or set WITH_CLEAN= =3Dyes. > > The change is a pure MFC of the changes integrated to -CURRENT early 2021= and no issues are expected, but in case any problems are observed, please = issue a PR and/or let me know in this thread. > > Best regards, > Marcin