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[2620:137:e000::1:20]) by mx.google.com with ESMTP id t4-20020a2e9d04000000b0024d68fa681esi5063082lji.355.2022.04.28.13.04.45; Thu, 28 Apr 2022 13:05:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349243AbiD1Phb (ORCPT + 99 others); Thu, 28 Apr 2022 11:37:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349247AbiD1Pha (ORCPT ); Thu, 28 Apr 2022 11:37:30 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54BAD5BD21 for ; Thu, 28 Apr 2022 08:34:14 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id j4-20020a92c204000000b002caad37af3fso1947041ilo.22 for ; Thu, 28 Apr 2022 08:34:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=EwMmxxB70GQgJ7u1Zrn5Cilc9vL4oRzYW0xvX1vsow0=; b=Y9XwFdCkvw852ikV2KUk3z9gZbRgcED3m9v//4gDC7td/DUR/eclSFagAgqesRrZey hlLHiOLmrkyagabEvYu1LzbSsETBf5bT38Zy7L9w9kp4G46pGell7D2VT06YMS2F/v6g SUkTx2XGZjHXwC4DSfZ6TJqeVPTWG7H+MV+jjqvxd1L8Sq1zPVtvpKTWfR1EsHqz424K zAiyKtN2lENJ9WYl3j6AtXob0uU5kO45NiqB0XuHhxr1MR6YMzhk6ltjU28IoFNTsQ1i pjdOhVWX8+2lIpRZvwJ6Wow79Iil4SuUraOhuZ7xxnFu3f4JPtCFwL4FFcTjr/2pMxBT Kb9A== X-Gm-Message-State: AOAM532uhj0IeVGLIxvvk3TU4GytTS1KeAtzu4rmhcI7r3+ge0Uceuxn hNkCDPP0tzsYHXBMYp/reihD2uWGH5syV9Nm9VMriQ9grtuO MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1585:b0:2c2:5b2c:e3e5 with SMTP id m5-20020a056e02158500b002c25b2ce3e5mr13726563ilu.76.1651160053601; Thu, 28 Apr 2022 08:34:13 -0700 (PDT) Date: Thu, 28 Apr 2022 08:34:13 -0700 In-Reply-To: <00000000000012e22c05dacabb11@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000765a6105ddb8a8b9@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in add_wait_queue From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, gregkh@linuxfoundation.org, io-uring@vger.kernel.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit d89a4fac0fbc6fe5fc24d1c9a889440dcf410368 Author: Jens Axboe Date: Tue Mar 22 19:11:28 2022 +0000 io_uring: fix assuming triggered poll waitqueue is the single poll bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17b70e42f00000 start commit: b47d5a4f6b8d Merge tag 'audit-pr-20220321' of git://git.ke.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=63af44f0631a5c3a dashboard link: https://syzkaller.appspot.com/bug?extid=950cee6d91e62329be2c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14506ddb700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=139b2093700000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: io_uring: fix assuming triggered poll waitqueue is the single poll For information about bisection process see: https://goo.gl/tpsmEJ#bisection