From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id 0CnsMiqN2mNlqQAAbAwnHQ (envelope-from ) for ; Wed, 01 Feb 2023 17:02:50 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id kIYHMiqN2mO92wAAG6o9tA (envelope-from ) for ; Wed, 01 Feb 2023 17:02:50 +0100 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 48ADA1FB62 for ; Wed, 1 Feb 2023 17:02:50 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pNFYz-000534-TV; Wed, 01 Feb 2023 11:02:21 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pNFYf-000509-5V for help-guix@gnu.org; Wed, 01 Feb 2023 11:02:20 -0500 Received: from tobias.gr ([2a02:c205:2020:6054::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pNFYd-0006Ma-2g for help-guix@gnu.org; Wed, 01 Feb 2023 11:02:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=2018; bh=6pSXVnTVDjoIz wXtDm3mqyqaMezo9SJNT26xWsNPB6A=; h=in-reply-to:date:subject:cc:to: from:references; d=tobias.gr; b=N4unRV9T18j1jv6HRso4F74nnyGaiY2ZJYBkP7 OpijmerqwaMey+jDsn2S/Xj1FGauoO+9a8uwGnI82C/1OnI6Jf28cUFLRKRfRYymy5jhYt yU8DuJz5Pl2pNY5hsAYxdztI/sKk4jCehLJpHfBFcwFHfMCmN9uDS3WKnbA6Kkpefc/q88 Zr1oc/F9o8H4xm/R0tcSTdDCv4jClzYZn9LttGtW8yTEUrCPWTVeKrjWoUqHJwmavkpRG2 WmhK5arahW4wOe4Wk6ELrjkdOy6owKgaCgclwZJ/V2I9z73Na81LGuItO32wJAH5eu4B2x DKk/uyuvc0c60NBiiLo61cxA== Received: by submission.tobias.gr (OpenSMTPD) with ESMTPSA id e70f21e6 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Wed, 1 Feb 2023 16:01:51 +0000 (UTC) References: From: Tobias Geerinckx-Rice To: Christian Gelinek Cc: help-guix@gnu.org Subject: Re: Intel i7-1165G7 vulnerable to Spectre v2 Date: Wed, 01 Feb 2023 16:58:30 +0100 In-reply-to: BIMI-Selector: v=BIMI1; s=default; Message-ID: <87fsbpnzil.fsf@nckx> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Received-SPF: pass client-ip=2a02:c205:2020:6054::1; envelope-from=me@tobias.gr; helo=tobias.gr X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: help-guix-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN ARC-Seal: i=1; s=key1; d=yhetil.org; t=1675267370; a=rsa-sha256; cv=none; b=dP6ZDX0u1RZOVJTejf64fBOTYpmFXpTWyj8QlFtkhHkfFzcUOsiZoWPucKjRRlSKgbtsTR fwEce/Gws8CWZn1DECxWWn7H5ygTXwIPPbuV2AibS8gb08a2K8llzBHQOEt4fYG0nCae4Y STj33DKTHvt5TjIZW+kKVaOkGZba7w5xeJb1faP9Q5izqY/gcv/2JXC7b6vXy/0X22S1f+ HXX3XYSioBiY21z6Y9fgRY1JRBlnzjojkQSdijiOR6VZOOyA+7M5uLpIaAP0YDmrYzu5m8 Ji1RJ/29j4+vUPM/8U651Ea3uGdjV96Yrxl52UNRcYEJXo64ajwGkjcFZEX4jQ== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=tobias.gr header.s=2018 header.b=N4unRV9T; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org"; dmarc=pass (policy=reject) header.from=tobias.gr ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1675267370; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=6pSXVnTVDjoIzwXtDm3mqyqaMezo9SJNT26xWsNPB6A=; b=URjGskWyuxQw652t3V6i9U8QQFAfBxnIy6Rv6oNHE6kboKvL4XNSIPGmsiTaAcNAnYC+dx nojj8F09RS4cgOTeDUe9WMcCEaQMsAs9VMtqEC6jGZHPzlmD5kOraMHcutKnkmHeck9kBx euXpbJCNFJAk1gF/BdIL4i8GanLeTPbzc77NyuUsI5kgHg3G2FrWCUWmMBJ1HuRZg+kSqe F2q4YCoI+w49tH7kT1SVBC5iNDVqYfJFhTyfuyujhfYI52HRpEsgHcwngJ3qItQmWPORsz PzxZ+zNAcsCieJbtbN0TeHUVc1DI0dcxw4DMqOXUCh7gkiwrMqQbMuRxyYCs4Q== Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=tobias.gr header.s=2018 header.b=N4unRV9T; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org"; dmarc=pass (policy=reject) header.from=tobias.gr X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -6.55 X-Spam-Score: -6.55 X-Migadu-Queue-Id: 48ADA1FB62 X-TUID: P2Pw0K1Pee8v --=-=-= Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Christian Gelinek =E5=86=99=E9=81=93=EF=BC=9A > Spectre v2: Vulnerable: eIBRS with unprivileged eBPF [=E2=80=A6] > Spectre v2: Mitigation; Enhanced IBRS, IBPB=20 > conditional, RSB filling, PBRSB-eIBRS SW sequence Does $ echo 1 | sudo tee /proc/sys/kernel/unprivileged_bpf_disabled change this? What does Debian's kconfig list for CONFIG_BPF_UNPRIV_DEFAULT_OFF? Guix has it *unset* (which means default *on*) which means that=20 unprivileged_bpf_disabled is 0 (which means *enabled*) because=20 Linux is a hot mess and nobody cares. Kind regards, T G-R --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIMEARYKACsWIQT12iAyS4c9C3o4dnINsP+IT1VteQUCY9qNcg0cbWVAdG9iaWFz LmdyAAoJEA2w/4hPVW15igwA/Ayn1z5CPKNVZG30d30WUst02pwjkpnEPURm3i0i gXacAP0ZKvSTr0570TJR9uCNWiZbBmh9eDpwq1hhSn7UOFQ/DA== =Ow2K -----END PGP SIGNATURE----- --=-=-=--