From nobody Tue Feb 01 22:10:08 2022 X-Original-To: freebsd-announce@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 5B2FD198A6BB for ; Tue, 1 Feb 2022 22:10:08 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JpJyS1q9Lz4s5F; Tue, 1 Feb 2022 22:10:08 +0000 (UTC) (envelope-from security-advisories@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1643753408; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc; bh=SJd/Z5njjhF7vcBRsXSUCK8YWT02lpE2CDIvgXpVDjk=; b=CsgZF1uH6eQTB17ffkhvU7IeDfuCGiUnrpreCEruTZk6flKWv+oZrk3qH3jKsK5k2jgTI9 +ZcXU1/2J/o55wGTcGdYr/fEjoKGwX9+27SwihN7xqaQAIGdxg8K3yDMOXACwbKxmcuCoi 2TP3uJEI29ok/pqI5SW2vVnGaiMEHPVnSyeeVKtAMyhjlAx5QoUI7RLPxdF5WbjDbLOLz9 BAY0LTBFUF2uKSOcYLi/ygr6csg/alDP6KG4ufMEX7K8zHQ4Zh/ONoqouXfaNb1xExam51 zZxHJeEouaTHn2BMm0VAvHg3q/YTcyKRkaRzkaMOAthd7rzPNsNMMcJT3ViY+A== Received: by freefall.freebsd.org (Postfix, from userid 945) id 293A014FC9; Tue, 1 Feb 2022 22:10:08 +0000 (UTC) From: FreeBSD Errata Notices To: FreeBSD Errata Notices Subject: FreeBSD Errata Notice FreeBSD-EN-22:07.la57 Reply-To: freebsd-stable@freebsd.org Precedence: bulk Message-Id: <20220201221008.293A014FC9@freefall.freebsd.org> Date: Tue, 1 Feb 2022 22:10:08 +0000 (UTC) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1643753408; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc; bh=SJd/Z5njjhF7vcBRsXSUCK8YWT02lpE2CDIvgXpVDjk=; b=tGzUhU1f69Or7gPnah2maierKc0vmZg4VrZOmWldvTTfSvWz97HNrqgr0I1m3crNztK5HO RTCzglvqKvK6UKwDU02R74rsYATt2qXGKkFBBg9FH3Ce4v85YCrirg69yIXubh/bUZk1fY gDD8FrrvybmEJm9RA2V1eFyhxbtgZiz+bUSJFTuKfLi07t3fxHE8eJojLCLQhK4xdIQpDw 9C4YVgve2B9vczNza1Bz1VQztqKRplRoBEBoMzwIocMucNkuIaEIAvVGcrsfZp056o9LjF aYbBRlIPr8qxHOzYHzIAZNwcctFcwoDpVEmcrDhfnBbDysD8iJ6706F4GZRK2A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1643753408; a=rsa-sha256; cv=none; b=Z7A6T6P+JmoKG+n/BoGDoSZxABwZx/YFyN5EFKoo7XxeNBlnH68KDoId3UJ13ceSfw95jx 48IPhQlUMHaOae/4HRV+bJcQ1x7X9q9ttEe9NQ1/ePE1pO1TgAZnZVTyuliRKzRHppmEEU Ho5C3vyqQsI3wYev75aRH4/3g8FQHD0HwCvd9mI7RvJtPBKkimlkF5ngjhImLtqtrrJmji WCke7xxODTFRRTDUqMtYEKfJ6bnJsTOSfTnybbqfI+CkFNuhQGABoNUeDdnBenfYwXTFfA HmJ7N+jlNEoMkHdStWbtGnB4I2A9sUl96i/p+J7HSZiGc1bKjrfMkqUhToLYvw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N List-Id: Project Announcements [moderated] List-Archive: https://lists.freebsd.org/archives/freebsd-announce List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-announce@freebsd.org X-BeenThere: freebsd-announce@freebsd.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-22:07.la57 Errata Notice The FreeBSD Project Topic: Intel CPU LA57 boot failure Category: core Module: kernel Announced: 2022-02-01 Affects: FreeBSD 13.0 Corrected: 2021-05-03 01:27:22 UTC (stable/13, 13.0-STABLE) 2022-02-01 17:43:46 UTC (releng/13.0, 13.0-RELEASE-p7) For general information regarding FreeBSD Errata Notices and Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit . I. Background Recent Intel x86-64 CPUs support 5-level paging, extending the size of the virtual address space to 57 bits. The extension is enabled by setting a bit known as LA57 in a control register, and switching to 5-level paging during boot. II. Problem Description LA57 support was tested on and is functional within QEMU, but fails on physical hardware. III. Impact The kernel fails to boot on Intel CPUs that support LA57. IV. Workaround LA57 may be disabled by adding the following to /boot/loader.conf: vm.pmap.la57=0 This may also be set from the loader prompt (i.e., for initial boot or installation). V. Solution Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. After update LA57 will be disabled by default. 5-level paging will be fully supported in a future FreeBSD release. Perform one of the following: 1) To update your system via a binary patch: Systems running a RELEASE version of FreeBSD on the amd64, i386, or (on FreeBSD 13 and later) arm64 platforms can be updated via the freebsd-update(8) utility: # freebsd-update fetch # freebsd-update install 2) To update your system via a source code patch: The following patches have been verified to apply to the applicable FreeBSD release branches. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. # fetch https://security.FreeBSD.org/patches/EN-22:07/la57.patch # fetch https://security.FreeBSD.org/patches/EN-22:07/la57.patch.asc # gpg --verify la57.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile and reinstall your kernel as described in . VI. Correction details This issue is corrected by the corresponding Git commit hash in the following stable and release branches: Branch/path Hash Revision - ------------------------------------------------------------------------- stable/13/ df6241fcef9a stable/13-n245478 releng/13.0/ f151464add6f releng/13.0-n244775 - ------------------------------------------------------------------------- Run the following command to see which files were modified by a particular commit: # git show --stat Or visit the following URL, replacing NNNNNN with the hash: To determine the commit count in a working tree (for comparison against nNNNNNN in the table above), run: # git rev-list --count --first-parent HEAD VII. References The latest revision of this advisory is available at -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAmH5kzIACgkQ05eS9J6n 5cJP+Q//be4jFodkfCtiwKwMNr+1RvGZtopWq0X6g5CQCTIrPtUKqdie3ceOhjRi zl3vNInfus6iTo0jSBMiWCpj7cI3AekZvwLuDHKp1GWv5WWQivDe6A6sbrGSgIQ2 9MG7RYE7t0L0LVnzTSlHCWXCzTqmpzTXEePw7NqgPhg7J3NtwYLBh5C4MqmScA6Y vbNzWMGIfa9IJqaDcxxEdqqGoTrv/MEWzVZ7TzM4O8DWIm+oK/5E+qiTk1fSyc/Z uI6hUMMt7xxP8KkZdlqVODwHzVo6v4kigpNTqNK1epv3nFrL3hJ+e3GhWreV6tkI XA9pjZT2gyLz+Ryn7QyIzrByrpXKDQK/8nKu9eoQdhDdxN6sWS65PPQKPhzQOemk qFx3V2oK3UMF7Q2BeF8aDxm48RU8weDACcxn2w6X73VyIHvz1H3MpirxPrcwjm1v RQJKGUZfnnTfg8zsstVASaj2R2i+Qa0Zk70tbCaXrPH7TB6Cadx6sjBjoLViQYQk 99glmvpc37u2ryW4MKlDNLeae9LnW7jyDMfpGlN3tJ4AD6y+2EcVixiTqAEF8t27 hZgi/3MVUNltCfSUoOol9y/aqaTjxPHTR9HSjrmCnJAWHwmyk33lC4/17kd8Qx0U bEFufzp/pDwFur7dWJOxVehFHc0/MoOioJHbeN3oNBMQiFdDoRY= =efkJ -----END PGP SIGNATURE-----