From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2FE1C432C0 for ; Thu, 21 Nov 2019 07:45:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ACE0720898 for ; Thu, 21 Nov 2019 07:45:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="qeVdompd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726408AbfKUHpf (ORCPT ); Thu, 21 Nov 2019 02:45:35 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:47053 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726265AbfKUHpf (ORCPT ); Thu, 21 Nov 2019 02:45:35 -0500 Received: by mail-pl1-f195.google.com with SMTP id l4so1166675plt.13 for ; Wed, 20 Nov 2019 23:45:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition :user-agent; bh=bPzli0UbnIkOuw3Obh9ByfekwddOHEm4S9pnT6dhJAw=; b=qeVdompd7MsyOrNmmhkKOQfjDUIOutiTZSWetVdJtQGNSAW9QVmGT5Abg172zxsLc+ mdRBlcIOCbJDfeLjbbxrHgOoWvKxFXcLYPTOErYdwfTqLQQ7iECkSEOR8tiL0ZgNfGsQ c7GmWYygqY+dlpiviMOmtl2rRbAh93UEQqGNgs3YkccEJnXlWvZPkJgvDWfsLHPekgI7 343L2MT/9V+VEoJ9cpjWLs7rHxU1B7/+zkBfdrDnEvlq5l5lLBJ4eo8Io8k8z9Zoxad4 OVodCvslR0oETSjknoVIAJDB160A9DgK4jigPn+wI/qU8Syxcm5uAu7kGEo2v6cKTuiF czbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition:user-agent; bh=bPzli0UbnIkOuw3Obh9ByfekwddOHEm4S9pnT6dhJAw=; b=jphx5m2g7U0v24LEMyFL3mHX/xI7JQpwfMi8FVveP2bLod7dZ9bj4kJLlvnsI6FWzE l0g0vqg5l90aCgPkJjNZx05bxN201OHP2CoGwq0UmU2d6fUw/GtPAfLYdsQj2Z3InuXu hNrzYbCGqSVQwQJ78hQPUZECbn4s+43T3NJqp8m/BThHbqa5N7MCeT7bheeaCIUxxC6B zV76cEpq/ZN5LGjOU8IaB0N/0OaGCF/apwBxqYOKpBLFV2V1Po9UoeYSs1K3fTkko/0g S49lP5Qh8Z/pDS285hpCFezdzIQsv6azBwtbQrXGFB4gMPYSQOsjkXVmOZWfNsjnaaRu qrrA== X-Gm-Message-State: APjAAAV5LHEAFcM5RqUK7jeqXy0Iq8hDFCDqNRtn20FlmZmHddxsFxT/ AwVx/+is2EJa0roMBthM/5KjuVGv X-Google-Smtp-Source: APXvYqzRVpHcfCB3hzpPLnq8R2HrUYmriEvr21kF9A/BBuR7jVGhWHMwM1jaAYgo78pg36KxFSCz1Q== X-Received: by 2002:a17:902:d70a:: with SMTP id w10mr7426861ply.279.1574322334279; Wed, 20 Nov 2019 23:45:34 -0800 (PST) Received: from udknight.localhost ([183.250.89.86]) by smtp.gmail.com with ESMTPSA id c9sm1943811pfb.114.2019.11.20.23.45.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Nov 2019 23:45:33 -0800 (PST) Received: from udknight.localhost (localhost [127.0.0.1]) by udknight.localhost (8.14.9/8.14.4) with ESMTP id xAL7jTAb015461 for ; Thu, 21 Nov 2019 15:45:29 +0800 Received: (from root@localhost) by udknight.localhost (8.14.9/8.14.9/Submit) id xAL7jTpt015460 for stable@vger.kernel.org; Thu, 21 Nov 2019 15:45:29 +0800 Date: Thu, 21 Nov 2019 15:45:29 +0800 From: Wang YanQing To: stable@vger.kernel.org Subject: [PATCH] bpf, x32: Fix bug with ALU64 {LSH, RSH, ARSH} BPF_K shift by 0 Message-ID: <20191121074529.GD15326@udknight> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.7.1 (2016-10-04) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org commit 6fa632e719eec4d1b1ebf3ddc0b2d667997b057b upstream. The fix only affects x32 bpf jit, and it is critical to use x32 bpf jit on a unpatched system, so I think we should backport it to the only affected stable kernel version: v4.19 Thanks. Cc: #4.19 Signed-off-by: Wang YanQing