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 BB15DC433EF for ; Wed, 23 Mar 2022 00:48:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240590AbiCWAth (ORCPT ); Tue, 22 Mar 2022 20:49:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233175AbiCWAth (ORCPT ); Tue, 22 Mar 2022 20:49:37 -0400 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E46901E3F3 for ; Tue, 22 Mar 2022 17:48:07 -0700 (PDT) Received: by mail-il1-f200.google.com with SMTP id h13-20020a056e021d8d00b002c7fb1ec601so18685ila.6 for ; Tue, 22 Mar 2022 17:48:07 -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=MG5Y8xILdnFlJljeDRhJEgQB6FlTo+9PoQNjAE5QtFg=; b=yiCH29UbrmDDtFWJjxpFUrN9nM2L7GDJOoKgZMY4IxUw8haenkh1xvEEDwU2YNZ78e c+IPAv594RFiab+NQ8WBV+ffTaIdaMEveWSffSbKFCRu9nYiOJfauv5LAUCPLlCIrUi6 7QPcEV+K24bHY0rIggaJ3nXZe37opffL+Q5xArsUF3bmHC1+rnQwC5b8UEUMWwg2sT64 ZTFXl3AaVSLz9cpN6kzakB2zSWqcQAApSWnAf7EVDqbPntE9T7ycEVjqHdbdQzDYkHU1 YNlUQKYsa4WfiZwkLaKcyis3Y6r9BrftcOiMAWrESdBkg8KqpVdKG7Xfg5AUsPh+NfAf VhMw== X-Gm-Message-State: AOAM531AdTfqoaXGxmwnnygIUkBJ9xRvg4zI1InJ0LSX21OzrhcBhRwA zFP31j1N9+1g0Eva+zXv5KmJhdsGCodz/LNJB1+t+89Yg5+y X-Google-Smtp-Source: ABdhPJzptHHQrN8r1mX3409unrkLHPcL2SBen3Iw3BjiPGI4qJqSBSa7xKT6pKtQAVfZwGv1L/fSJM4YvdlQx/82p0qPPCGBE8T6 MIME-Version: 1.0 X-Received: by 2002:a05:6638:22e:b0:321:675d:aa77 with SMTP id f14-20020a056638022e00b00321675daa77mr1273076jaq.152.1647996487309; Tue, 22 Mar 2022 17:48:07 -0700 (PDT) Date: Tue, 22 Mar 2022 17:48:07 -0700 In-Reply-To: <8bcf2234-983e-171f-90dd-ff0c07412b46@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000379f1d05dad8157a@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" 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.