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 4E0E2C4332F for ; Tue, 20 Dec 2022 08:23:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233058AbiLTIXI (ORCPT ); Tue, 20 Dec 2022 03:23:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229556AbiLTIXE (ORCPT ); Tue, 20 Dec 2022 03:23:04 -0500 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D55BD17884; Tue, 20 Dec 2022 00:23:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=HObulU/7Fs3yB8e3lwJHXRtK0ZlIRyjZdgzRj34kWOk=; b=Y2g2957HjQw87hnzWyVfFz8azM EW6UuioOZy+j5HdRU1gP/i71DMMChCAsX8L05vcpTJp7SgOLy5bve/RSreDmHVsYQTFlfW1u4vfUN aF9qEU5za5JmbEWaPUZubjU1+Z/vcNWOJxD6J0HvNCGZQL0OSfaRxOCFtz7awtviDzLzJPsKaAn2a FKWTNJ1R/jc8KvcEzROc5wVJob9T6C0e5YZuUkSDfs/m2fc6xrqsBAMOYpyOlMk4kFNI4GDVaXvmp nAIEPNGbKxwmLc8OB2rAgV6L4OrntjewPtUb8BVpYdeNTRRA7NuJ/AgMBHv+Yblk+D3Ta7LyBSRgg 6j3bdbfQ==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1p7Xtg-00CvrU-38; Tue, 20 Dec 2022 08:22:49 +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) server-digest SHA256) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id BED52300E86; Tue, 20 Dec 2022 09:22:47 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 743A820ACCA77; Tue, 20 Dec 2022 09:22:47 +0100 (CET) Date: Tue, 20 Dec 2022 09:22:47 +0100 From: Peter Zijlstra To: sdf@google.com Cc: syzbot , acme@kernel.org, alexander.shishkin@linux.intel.com, bpf@vger.kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] KASAN: use-after-free Read in put_pmu_ctx Message-ID: References: <000000000000a20a2e05f029c577@google.com> 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 Mon, Dec 19, 2022 at 11:33:29AM -0800, sdf@google.com wrote: > On 12/19, Peter Zijlstra wrote: > > On Mon, Dec 19, 2022 at 12:04:43AM -0800, syzbot wrote: > > > HEAD commit: 13e3c7793e2f Merge tag 'for-netdev' of > > https://git.kernel... > > > git tree: bpf > > > console+strace: https://syzkaller.appspot.com/x/log.txt?x=177df7e0480000 > > > kernel config: > > https://syzkaller.appspot.com/x/.config?x=b0e91ad4b5f69c47 > > > dashboard link: > > https://syzkaller.appspot.com/bug?extid=b8e8c01c8ade4fe6e48f ^ so syzbot knows what tree and config were used to trigger the report, then why: > Let's maybe try it this way: > > #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git > 13e3c7793e2f do you have to repeat that again in order for it to test something?