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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79569E936FB for ; Sat, 7 Oct 2023 07:10:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343601AbjJGHKT (ORCPT ); Sat, 7 Oct 2023 03:10:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343572AbjJGHKS (ORCPT ); Sat, 7 Oct 2023 03:10:18 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18D5CB9; Sat, 7 Oct 2023 00:10:18 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E38FC433C8; Sat, 7 Oct 2023 07:10:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1696662617; bh=xeHnT2C9sh0AspYV0KkPiTMG27K+EQ5856aRmwIk09A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fMbgk3mvwmCKY+R93LchM3ZW+Lp4DVA55slkhxzmhqnr9EaXW9SolajgfqOOvMY3b LduunjkUaxB69wOJ6ZHKli0w4PwWDsmlN1FlDrucGV1YTL8DsmnbCYXD4Bey8M8ZEA uqIyTwP9PJOOYL9sUKASzMYu20O38sAVbx27jUcM= Date: Sat, 7 Oct 2023 09:10:14 +0200 From: Greg KH To: Kyle Zeng Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: nullptr-deference in perf Message-ID: <2023100758-astronaut-comrade-9abe@gregkh> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Fri, Oct 06, 2023 at 10:47:57PM -0700, Kyle Zeng wrote: > Hi there, > > I found a nullptr dereference in perf subsystem and it affects at least > v5.10 and v6.1 stable trees. (the same poc cannot trigger the crash in > the mainline). Can you use 'git bisect' to find the patch that fixes this? thanks, greg k-h