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=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 CF4FEC433E7 for ; Mon, 19 Oct 2020 13:18:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 58E202242E for ; Mon, 19 Oct 2020 13:18:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="GD0WHEFr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727297AbgJSNSq (ORCPT ); Mon, 19 Oct 2020 09:18:46 -0400 Received: from mx2.suse.de ([195.135.220.15]:47158 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726931AbgJSNSq (ORCPT ); Mon, 19 Oct 2020 09:18:46 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1603113524; h=from:from: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; bh=v7WfNYUczwmH5kd5aVp7TEjtwO+BlARGhkxvUJGVTF0=; b=GD0WHEFrCzHMg5Z0lQPfieggrhYlzjuX855mHBK97YmlA1j7G7uzqYtkKXsUj9o8vOwWe3 yhdqR/DCHUPH/woBF0h8XxL8eXKaMXFmKfS/KJh6IpOzs8dDshVhrBGIyVDAcqXvMSLeDv NrL90hTRKpHYke2rvNy4kyQHhKoflM0= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 3006FB7F1; Mon, 19 Oct 2020 13:18:44 +0000 (UTC) Date: Mon, 19 Oct 2020 15:18:43 +0200 From: Petr Mladek To: Matteo Croce Cc: linux-kernel@vger.kernel.org, Guenter Roeck , Arnd Bergmann , Mike Rapoport , Kees Cook , Pavel Tatashin , Robin Holt , Fabian Frederick , stable@vger.kernel.org Subject: Re: [PATCH 1/2] reboot: fix overflow parsing reboot cpu number Message-ID: <20201019131843.GB26718@alley> References: <20201016180907.171957-1-mcroce@linux.microsoft.com> <20201016180907.171957-2-mcroce@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201016180907.171957-2-mcroce@linux.microsoft.com> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Fri 2020-10-16 20:09:06, Matteo Croce wrote: > From: Matteo Croce > > Limit the CPU number to num_possible_cpus(), because setting it > to a value lower than INT_MAX but higher than NR_CPUS produces the > following error on reboot and shutdown: > > Fixes: 1b3a5d02ee07 ("reboot: move arch/x86 reboot= handling to generic kernel") > Signed-off-by: Matteo Croce Reviewed-by: Petr Mladek Best Regards, Petr