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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id h69-20020a628348000000b004fa3a8dffecsi3212698pfe.163.2022.03.25.11.23.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Mar 2022 11:23:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1F21D2982C; Fri, 25 Mar 2022 10:48:22 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233519AbiCVVEk (ORCPT + 99 others); Tue, 22 Mar 2022 17:04:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230015AbiCVVEh (ORCPT ); Tue, 22 Mar 2022 17:04:37 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E7EC13DC1 for ; Tue, 22 Mar 2022 14:03:07 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id s4-20020a92c5c4000000b002c7884b8608so9836049ilt.21 for ; Tue, 22 Mar 2022 14:03:07 -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=A7UVHLa5gEcZxIqWogg32nPbf3+g0qv3P5D2guYzwY4=; b=5UD+Jg//oa17xi5aosvAwm8gza0QTvtaCzOxZVbTTD40qA/i/JuYJMIFTTrhbrVcKQ OjLhRvCT9Y1md4Imb84p5PEA9/YrrbG6tM1wlDsCbhHZKkog7iJzX60/i5mecl/7sL93 QJ/x/+sY/WIKs8O4noQ83U0RzeY9VI6l7i9GntkiVSRze5mS8JJptOPxoLJ/LI1IiHj/ O63KhDa95y7jLQCiy5H2m6NFUceVsKA4vR4PqPw4jQayhQ1sO+NdKPeWuuBuTzAv3EW6 FoXdOw9/FG3PUNDODcxqkb4MFvmyIyuTqoxrIQDHrPBcZrBG0QYOwzseXeZZryfQQEfl z+jA== X-Gm-Message-State: AOAM531XiOVrzO77rtLStCvQZCkbIWgkm5p2pPG4OO/Yzkm9738XOnZO oNpCI2ll9djA+W7JFrXuNJgKeaaIc9CKtWAoVtKUzNeVHeYh MIME-Version: 1.0 X-Received: by 2002:a6b:1495:0:b0:645:b115:611c with SMTP id 143-20020a6b1495000000b00645b115611cmr13475591iou.199.1647982986421; Tue, 22 Mar 2022 14:03:06 -0700 (PDT) Date: Tue, 22 Mar 2022 14:03:06 -0700 In-Reply-To: <0cd64678-f4de-0e30-87d2-01f32311ee98@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000806a2d05dad4f0e1@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in tty_release 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=0.6 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SORTED_RECIPS,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE 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 Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+09ad4050dd3a120bfccd@syzkaller.appspotmail.com Tested on: commit: 7d58de1a io_uring: don't recycle provided buffer if pu.. git tree: git://git.kernel.dk/linux-block for-5.18/io_uring kernel config: https://syzkaller.appspot.com/x/.config?x=e8bdba3010ab9145 dashboard link: https://syzkaller.appspot.com/bug?extid=09ad4050dd3a120bfccd compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.