From patchwork Thu Mar 23 16:35:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thadeu Lima de Souza Cascardo X-Patchwork-Id: 1760424 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.a=rsa-sha256 header.s=20210705 header.b=ROZI1dTA; dkim-atps=neutral Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Pj9wK3F5Vz1yXt for ; Fri, 24 Mar 2023 03:36:48 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1pfNvX-00028C-D4; Thu, 23 Mar 2023 16:36:35 +0000 Received: from smtp-relay-canonical-1.internal ([10.131.114.174] helo=smtp-relay-canonical-1.canonical.com) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1pfNvU-00027h-3b for kernel-team@lists.ubuntu.com; Thu, 23 Mar 2023 16:36:32 +0000 Received: from localhost.localdomain (1.general.cascardo.us.vpn [10.172.70.58]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id EF10F41C8C for ; Thu, 23 Mar 2023 16:36:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1679589391; bh=SDD7A3tE0jn/dbDHPRBUph2SKuvIHPIu9Ko1mnkIGDQ=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=ROZI1dTAeRxXsp2v7+T8rUFiFbmD8dFsNEc54FE78BVnLmAdv6iLIROTRCwgaz5re 0YASPYLQ5ZVY9ickCPvbCb0dUSmzjb59YfyCWUXA2qxurHBDsVyFyzCPYjI47i0R0J CJTDWxdd9a4mtIp2ocyhsQmx/Ma7vWFjLwgcekG4hFTN0HnfQaVwkhbDY9ZsGb6i2v lxI9qxzwQQ48kW5Fl4WC5fPu51iUI3hWi+Kx2pysSAg3WZmEkybCjQAJOpFKkPbFj3 8T5RDOpqQBnttK3hOBrjjEl/63Gvc/yZPAMzQtjsHZf+nWYMgQhFbq+I/r9EdzU337 ZJ/uZgDkNwwRw== From: Thadeu Lima de Souza Cascardo To: kernel-team@lists.ubuntu.com Subject: [UBUNTU Kinetic 0/2] CVE-2023-0468 Date: Thu, 23 Mar 2023 13:35:28 -0300 Message-Id: <20230323163530.1122686-1-cascardo@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" [Impact] Unprivileged users could use io_uring to crash the system or potentially privilege escalation. [Backport] io_uring was split into multiple files. Backported involved mostly applying the same changes to the single io_ring.c file. [Potential regression] io_uring users could regress. Pavel Begunkov (2): io_uring: fix tw losing poll events io_uring: make poll refs more robust io_uring/io_uring.c | 44 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) Acked-by: Luke Nowakowski-Krijger Acked-by: Kamal Mostafa