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[23.128.96.18]) by mx.google.com with ESMTP id u133si17612258pgc.332.2021.04.19.15.13.36; Mon, 19 Apr 2021 15:13:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel-dk.20150623.gappssmtp.com header.s=20150623 header.b=wGFGo25N; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240158AbhDSRvj (ORCPT + 99 others); Mon, 19 Apr 2021 13:51:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240167AbhDSRvi (ORCPT ); Mon, 19 Apr 2021 13:51:38 -0400 Received: from mail-io1-xd29.google.com (mail-io1-xd29.google.com [IPv6:2607:f8b0:4864:20::d29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18CF9C061763 for ; Mon, 19 Apr 2021 10:51:07 -0700 (PDT) Received: by mail-io1-xd29.google.com with SMTP id p8so14362383iol.11 for ; Mon, 19 Apr 2021 10:51:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=mBPy/kuTJuUrZLkWwHS3lWj/u450VV6pB+rdfegfvjY=; b=wGFGo25NU3QUJ9xq/yU8mQlt12iDfbifCsx6oQ3o0IMQe0mbQnhKW477azrdYqkJsx 0EkErXshYLbgkVSllkG+4V6fDmt/4hD2+9E4tHzD9awbKzFq6NYBTkBjSlTRNJ5urTqe srEelnboOvSRbMWiGSE6McaZo5YZc369NeQzT1nmwm2m4PTFV8yxLfiTt4TAUy0Yyyug 1QHeofzDafyqQjiKuTWSph/S94CjkqeJVBeNLWLuKhnoBavQkNRRSD32pwq7rQWgNmTy zX0TcefxLnpIvcS2CcMbzqn0Z+fCTGTitmYaETMl+1EDhJNAWvvnTaTPb55Q9YDbEVic zT1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=mBPy/kuTJuUrZLkWwHS3lWj/u450VV6pB+rdfegfvjY=; b=oQlUf+/P+OJKYGFnCwTqZLbCF+i0CVz2ZkitWpqnRafTCk1H3/2656x+Sta7nJ1QRD 54LZxMHaVjeDFsMlKl2dvnouxqjCe4vvKJN2od9ZPCjGxXR3iapQlSmz65M2k1JhxokA UNs1XCDurpIUM5RTaxB1jIRwn/edxXAqP+i4CqJGo5RG6Mx793DKMdDaEpqNNNvmCH7i WnfICl39xKRcT3ISBEuRX06hgdSDvB4psljll3ozKbbjVuvxubURq4K2Gu27I89/Y+bU dCKho8IThyzIj4lUohVw1Nzw7/Ija8Gp3R0Kr4Hyx4lMeeEjNC0Q+QiHSJTfmhne5925 2EUA== X-Gm-Message-State: AOAM533V2UBYBCZQ4LuOxZJazWDJqNXTEAfcsLe/8mWMs0S+JjMXzNqj UWnHQNhGI1CPk7AgNaJnL4ZopA== X-Received: by 2002:a05:6602:342a:: with SMTP id n42mr15511410ioz.88.1618854666497; Mon, 19 Apr 2021 10:51:06 -0700 (PDT) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id b9sm7301940ioz.49.2021.04.19.10.51.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Apr 2021 10:51:06 -0700 (PDT) Subject: Re: [syzbot] KASAN: use-after-free Read in __cpuhp_state_remove_instance To: syzbot , asml.silence@gmail.com, ducheng2@gmail.com, dvyukov@google.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, mpe@ellerman.id.au, paulmck@kernel.org, peterz@infradead.org, qais.yousef@arm.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de References: <0000000000000c120805c05452c0@google.com> From: Jens Axboe Message-ID: Date: Mon, 19 Apr 2021 11:51:05 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <0000000000000c120805c05452c0@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/19/21 8:41 AM, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit 470ec4ed8c91b4db398ad607c700e9ce88365202 > Author: Jens Axboe > Date: Fri Feb 26 17:20:34 2021 +0000 > > io-wq: fix double put of 'wq' in error path > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11e89cc5d00000 > start commit: cee407c5 Merge tag 'for-linus' of git://git.kernel.org/pub.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=8f67201de02a572b > dashboard link: https://syzkaller.appspot.com/bug?extid=38769495e847cea2dcca > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=154e360ad00000 > > If the result looks correct, please mark the issue as fixed by replying with: #syz fix: io-wq: fix double put of 'wq' in error path -- Jens Axboe