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 1FBCEC4332F for ; Thu, 22 Dec 2022 20:20:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235200AbiLVUUT (ORCPT ); Thu, 22 Dec 2022 15:20:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229504AbiLVUUR (ORCPT ); Thu, 22 Dec 2022 15:20:17 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5966120B7 for ; Thu, 22 Dec 2022 12:20:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=0BYO2kAW7k52H9OS5slY/sSBgV7L3Xl29geQCdlNEks=; b=M2P8NEN072hQHBBVUn3H4XCKIO DkIrfyJPf5IeKHaWKBgq+M8hWRm+zVKuJ9ioRzGW2gZOel6C31y07fAYnB3lI7UOHhLQHHJHBC2Ly 3XF9WaYQT1Q7S1RpneCCImI/NkSmNm88b4CFW3yr6OKnWwGinxIltowgnabDSEcKa35lFtGCadAT6 mSa3xG8OYNV+piQcR6ToRiDrEtqVs8dVfJHcH5XKaE2xl1YbAi9Mfw7Xg2xvhlTVWUyho7bWvWfCa a5n4K9U0VJsA+eX3XzUUPi1xgSXbGQr+ISgJ7dyMj2w7UrftCv76HNhZ9P1eZK1WN5EizM3WfGtUc hnuN0V5g==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1p8S2w-003vJh-KK; Thu, 22 Dec 2022 20:20:06 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 107273003D2; Thu, 22 Dec 2022 21:19:54 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id EC9272098A270; Thu, 22 Dec 2022 21:19:53 +0100 (CET) Date: Thu, 22 Dec 2022 21:19:53 +0100 From: Peter Zijlstra To: Alexander Potapenko Cc: Sanan Hasanov , "mingo@redhat.com" , "will@kernel.org" , "longman@redhat.com" , "boqun.feng@gmail.com" , "linux-kernel@vger.kernel.org" , "contact@pgazz.com" , Paul Gazzillo , "syzkaller@googlegroups.com" Subject: Re: Syzkaller found a bug: KASAN: use-after-free Write in put_pmu_ctx Message-ID: 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: linux-kernel@vger.kernel.org On Thu, Dec 22, 2022 at 07:11:38PM +0100, Alexander Potapenko wrote: > On Thu, Dec 22, 2022 at 6:40 PM Sanan Hasanov > wrote: > > > > Good day, dear maintainers, > > Hi Sanan, > > > Config file: https://drive.google.com/file/d/1JutR21cgcf28flJVyLqDniNyrExMsSn_/view?usp=sharing > > > > Reproducer file: https://drive.google.com/file/d/1X31x8w4ULrtP_YnkD7_RCyW7FlwGewMR/view?usp=sharing > > Any chance you can build with debug info enabled (CONFIG_DEBUG_INFO=y)? > Then you'll be able to generate file:line information for the report > (probably your syzkaller instance will do that for you, otherwise you > can always use scripts/decode_stacktrace.sh) Ok use Google before posting.... https://lkml.kernel.org/r/000000000000a20a2e05f029c577@google.com