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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44DF6C433F5 for ; Tue, 22 Mar 2022 21:15:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235338AbiCVVQl (ORCPT ); Tue, 22 Mar 2022 17:16:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37712 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235311AbiCVVQk (ORCPT ); Tue, 22 Mar 2022 17:16:40 -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 93C9C3FD83 for ; Tue, 22 Mar 2022 14:15:09 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id s14-20020a056e021a0e00b002c7c03a5d81so9880855ild.9 for ; Tue, 22 Mar 2022 14:15:09 -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=MG5Y8xILdnFlJljeDRhJEgQB6FlTo+9PoQNjAE5QtFg=; b=rlyUBE1gK6AIZoQJc/vAVVBrezVl/hlFGwLpf4n+f9pbtkmr/rQeUXTe3wsMJt6TDn 8Oz0+SG4PIh9KXO8BPst4Dl4/QLJFCq0diz5U2iaftHWG46L/uzh7D4RgNh4S8nLCYsB Wwoe1Ok4tIYAbILpVQ1tcrafxviNinxov26bbws9cQHagW5BDyit9L1orHouBjtjxZ3g rOlVwZIIolQkFBtl6CyTNvLDjKlcF1hs+zEpKNnp046C1N2vC2eR/zteOKe7tt4u42Op UQideE1xc3iLSWWgrfvHF9twP3hZJvzVkAAEwj2qROBoaFnZK3GNaE+hWoQRhLOIAnUk vWPQ== X-Gm-Message-State: AOAM532rjpAvvXr9jNk7vIi6yclBqld2ri+pD3fL54NxluUznvai45XV e8MrGsxHrYY675ScyHvgE9wAWgB11WvLnDw3m1hF3gu6CRsK X-Google-Smtp-Source: ABdhPJzTvsmDj8F2NfYsv6RQxGTEFIkU5OHFdqWqiIQHfiW3AlzdeqdQlJ/DXbOuA/B92prR6jT/PoV0AmcCO+DnykKKdH6Hytq8 MIME-Version: 1.0 X-Received: by 2002:a05:6602:2f04:b0:648:cfb5:974a with SMTP id q4-20020a0566022f0400b00648cfb5974amr13360299iow.187.1647983709020; Tue, 22 Mar 2022 14:15:09 -0700 (PDT) Date: Tue, 22 Mar 2022 14:15:09 -0700 In-Reply-To: <5cd8d8f7-b172-12a1-5c4f-f9933b576208@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000092671e05dad51b08@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in add_wait_queue 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" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+950cee6d91e62329be2c@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=3172c0bf8614827 dashboard link: https://syzkaller.appspot.com/bug?extid=950cee6d91e62329be2c 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.