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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 6FCD2C433ED for ; Mon, 19 Apr 2021 14:41:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53F86611CE for ; Mon, 19 Apr 2021 14:41:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240450AbhDSOll (ORCPT ); Mon, 19 Apr 2021 10:41:41 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:34751 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240071AbhDSOll (ORCPT ); Mon, 19 Apr 2021 10:41:41 -0400 Received: by mail-il1-f198.google.com with SMTP id g7-20020a056e021a27b02901663a2bc830so11522775ile.1 for ; Mon, 19 Apr 2021 07:41:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=wlOpFW8cC2s0o+5q+U/P6q7nbFjBvPS+WnuW+PP2Iys=; b=WGNKsFair7/pYIpPnzh91NouLEgi6nPhDy/tCDRoX7Gq+aqPfJZ/TVOwjKhKw3HQAp qxEUo5juLb33gz/v76EelpGE2hM3rkxZ5G2RdeFGUzVMPCDfn0Dvlxpozr7UWvIKKwm1 ybqTqMYdlVjVEB9/9au0H8z8UNbbrhlZUdPl0iaHcMvEG7NciIucBgxxfVShISq0JP0v gZR/FIDQrn46cEyYf8r4gZx6VTDxea+IteT+FN6f3Ijh0V9LlenWVIl1r+Z4AG2faJmB nIyWpvjVC1WRbauPsTnX6gtD2JJHWSrCuMeGJIkVMwGU8sBBqQyEj8LFeHP2J+dVokGh z6IQ== X-Gm-Message-State: AOAM5331dcOKaAOrXYSmr8thDCNLLlGW2VgUw9jCx1KSDYUbRH/0VyMO q+4Cc9IORTRYy5Y4kmdKXF28AQpBlK/nNgKy8vLr5f/ENXRL X-Google-Smtp-Source: ABdhPJySkX4bS40j/+HsRpeprmCVSQL9BBIFWCA2S68/d629WQe84Yv8+tXJIEY7WItzNFIJ8X/WNmJUIk0x1ZLcHUKzjQ6SAoDR MIME-Version: 1.0 X-Received: by 2002:a05:6638:10e:: with SMTP id x14mr8742051jao.116.1618843269860; Mon, 19 Apr 2021 07:41:09 -0700 (PDT) Date: Mon, 19 Apr 2021 07:41:09 -0700 In-Reply-To: <0000000000000427db05bc3a2be3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000c120805c05452c0@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in __cpuhp_state_remove_instance From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, 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 Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 For information about bisection process see: https://goo.gl/tpsmEJ#bisection