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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w9-20020a6556c9000000b00398eb2e9574si2754242pgs.298.2022.04.02.06.13.38; Sat, 02 Apr 2022 06:13:52 -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 S1349959AbiDAPql (ORCPT + 99 others); Fri, 1 Apr 2022 11:46:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355695AbiDAPY0 (ORCPT ); Fri, 1 Apr 2022 11:24:26 -0400 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24047261DE9 for ; Fri, 1 Apr 2022 08:04:10 -0700 (PDT) Received: by mail-io1-f72.google.com with SMTP id f11-20020a056602070b00b00645d08010fcso1898170iox.15 for ; Fri, 01 Apr 2022 08:04:10 -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=8yOa6HuejIm3U0gNOJjgRXpDANw22tjwWXr0RnAzX2s=; b=TwfvTuMUwo6OJIQIeKoGGBSruPEuc+ZO9UOWiTuJi4sV8XUYUFcD+sycUqGfZuOjDG lbYWgwE2OXIjyMOQRb1ZXniF3hGoD7xep2sYgICriNQL4VXlyyN1ZynvDDjXD6ObuwFA y04KyoGrkZJkchbYFq+zYKSJmMXsDkepc1GarCZGqPl8mtTwxx7oqI3ZT9XUGiwI4C8O Dlzw9ymfarJVmBpSjEEg63PqkQtg3Gc0r/W804lAviC7fl+ZXVTaaMlLnYbza47ugPb0 8JAd74+nR7js62qSAsTJA/EgjUKoyGdE6ojdVyB7I/WvkROP8KMFLg99K59/MNl1amF/ JJ0w== X-Gm-Message-State: AOAM531Jvq35GxaXEkwHJXGE5aoMRSt8RO6W9L2lS9OOSl17fy781tfY D7PIW8zlxHAZu8ldtIuNRin5ViIjzBdS3LVCXmUcieU7DqMG MIME-Version: 1.0 X-Received: by 2002:a05:6e02:160d:b0:2c9:eef2:3a28 with SMTP id t13-20020a056e02160d00b002c9eef23a28mr102625ilu.306.1648825449333; Fri, 01 Apr 2022 08:04:09 -0700 (PDT) Date: Fri, 01 Apr 2022 08:04:09 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000350bc805db9917de@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in io_poll_check_events From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS,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+edb9c7738ba8cbdbf197@syzkaller.appspotmail.com Tested on: commit: 787c2499 Merge branch 'for-5.18/drivers' into for-next git tree: git://git.kernel.dk/linux-block for-next kernel config: https://syzkaller.appspot.com/x/.config?x=6a82c1abd4cbb9ee dashboard link: https://syzkaller.appspot.com/bug?extid=edb9c7738ba8cbdbf197 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.