Received: by 2002:a05:6358:4e97:b0:b3:742d:4702 with SMTP id ce23csp1282754rwb; Fri, 19 Aug 2022 00:21:07 -0700 (PDT) X-Google-Smtp-Source: AA6agR4eaUMT2fYJLWRlGGzYyHHdUIlvCcF+nGOS+WmAGu9nxqIfxM/xsb77xZGXyavhr0UwtSb+ X-Received: by 2002:a05:6402:1cab:b0:445:d67f:5323 with SMTP id cz11-20020a0564021cab00b00445d67f5323mr5125695edb.100.1660893667142; Fri, 19 Aug 2022 00:21:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1660893667; cv=none; d=google.com; s=arc-20160816; b=1IcQy3i1qqsnIWaTbm/ynX2YZf4ATQxUPAxSw58dNS+NBooHtFR7FAPq8g6DAAdUYc spcLBB8IDAUpyMkNYpgCF6byvFFQdV92MmtWmIoUClqATJQsVq2XLHYBdwsbMUAwDTjd +GfqFde1uyH5PiRJEiU5ZgdB1hYWO8swYhVqPjBPSr8tSy3Lm1RNQPlQlwsyvnfGKPeC PiIzlQQWyDUD86BDlwoXj4ztkYakjKEqkOaY1KlK4Obs5DFcm2/9wkTXapcIvXf0N0+W OZGgvkYBrQQWHPB2nKOf/JEoO/R3108GtzBzxtzIDIX06cc9yfL8VAe+HcjQ3I8SeQu3 yexQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=N57dtd56xWxwqdudtghn7NTE5PqsBAbYj/7MekYwqyw=; b=Ahd6zrWmJS4YBZ7q9uCXEdjlsyvcrZHnsbfNMg8efAY6t4bC00gu5Uy1ogg4hjya39 H4JdeX4Ui2Kl4GIzZlVkxFApCdyoHF9qGT2XmACNWQvWyppZqRTs3RCxDuKegwmgtk1J ElAHIO6Z/nxSt8jHNq0TsRQucOcqRh++t1JlcrQszwEtPsupJQtCkd8AyvftC7F99e3e 9UOoyz6n0gO9KEQNf7bptv/GSp4Jnbm0pa5w1xre4KMykF1yMUx2jxnY/mOw0F1zBL2A Lm1u288lA6oQFJgqoGiHnxHvh2WiMuCLLJUiPbB+q0dDidk6iox7LIyku65ugNEUWe9J HKMA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ispras.ru Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id e11-20020a17090658cb00b00731868bc6e8si2985019ejs.58.2022.08.19.00.20.40; Fri, 19 Aug 2022 00:21:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ispras.ru Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242694AbiHSHMM (ORCPT + 99 others); Fri, 19 Aug 2022 03:12:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229601AbiHSHMK (ORCPT ); Fri, 19 Aug 2022 03:12:10 -0400 Received: from mail.ispras.ru (mail.ispras.ru [83.149.199.84]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAE52E1901; Fri, 19 Aug 2022 00:12:09 -0700 (PDT) Received: from localhost.localdomain (unknown [46.242.14.200]) by mail.ispras.ru (Postfix) with ESMTPSA id 5CDAA40737CD; Fri, 19 Aug 2022 07:12:05 +0000 (UTC) From: Fedor Pchelkin To: stable@vger.kernel.org, Greg Kroah-Hartman Cc: Fedor Pchelkin , Tadeusz Struk , Peter Zijlstra , Dietmar Eggemann , linux-kernel@vger.kernel.org, Alexey Khoroshilov , ldv-project@linuxtesting.org Subject: [PATCH 5.10 0/1] sched/fair: fix fault in reweight_entity() Date: Fri, 19 Aug 2022 10:11:39 +0300 Message-Id: <20220819071140.35728-1-pchelkin@ispras.ru> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Syzkaller reports general protection fault at reweight_entity() in 5.10 stable releases. The problem has been fixed by the following patch which can be applied with minor changes to the 5.10 branch. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.