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 513A5C4332F for ; Thu, 28 Apr 2022 15:39:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348684AbiD1PnJ (ORCPT ); Thu, 28 Apr 2022 11:43:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349432AbiD1Pm6 (ORCPT ); Thu, 28 Apr 2022 11:42:58 -0400 Received: from mail-il1-x130.google.com (mail-il1-x130.google.com [IPv6:2607:f8b0:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E380B8204 for ; Thu, 28 Apr 2022 08:39:34 -0700 (PDT) Received: by mail-il1-x130.google.com with SMTP id e1so2228122ile.2 for ; Thu, 28 Apr 2022 08:39:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=OTiwe2B8rcUTI1j/SK3IzHaXYBhsCj6uIQbvt9mJoW8=; b=ipfJ7mfMBx1Gh7S27tOSuhiVa4tGtVpllk6Wp5RAxvOy62JewaAVekq9L7hm3Rw4Dz CXzsm9JZz/m5595XdVfjTk1u/u53HX2rbqoGiwpAJ0yH3l+ppPrfg6w+07ZoOCCt8y0B SjumJbNHwlEv2zNZmCR2hHbghukJqeDZtbDGqclEHxfmJ8diXalU9JjDQZ3/PhWz9UIT SNOvc0+zcKpNV5BKUQLpjoi6wjRd5FXZIG1VGxNe+/VQTEDSv36gbBAybf5N3vAW3SN0 7YTIjH4j7hb/++l/0QN9k6hGAGczcQguvm5tkgsUCuk12wxDejfjV/U9kMjcVMuneh6z gIdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=OTiwe2B8rcUTI1j/SK3IzHaXYBhsCj6uIQbvt9mJoW8=; b=r0FtQsbA9dEs/PbgY0udXY04E3As6CWZsuT6BmwrfS5iO4LvDsvrvhf95FXmS7v1Xd WqUhrQ5zgMImz7vWeBlPfMmuQKDIGHL1UTU3I/q9rZ4sHN8uhzRwRn4gl/WRaY5MXzWv wvgBgE7XEWzQ2ujSQkciKLRe16ilqtr5Mf0z81LXzpICYxf6xPf3vbmCl612MZo0dKoa 0ARs5UVbnhBgX1S6rzsGJvyj41V4QBA+a9sbOykWm6vWErpn8lnTijXQmrG5bQhyvwYx fokglp3MDurSxnHe3HMkpJVPJeI2LMjylr0GYe5Pk2NjXEbQSOauI6c/aEOdh9CGry0f C9SA== X-Gm-Message-State: AOAM531LwzBBxdbqGewbh2G8KSkyYf5N2K3kyHZnpF/iIGVW3qkNowV9 0HBhs2xb5/QxOVH/Y+GTQjrJgw== X-Google-Smtp-Source: ABdhPJwoRg8obuWEqLY+gYStieJPIHXgUsTUSpgt9B5G+awAdRdZhGFqY8ZPjyjvL7QqNgZHMMsaIw== X-Received: by 2002:a92:c54b:0:b0:2cc:3de1:ae5b with SMTP id a11-20020a92c54b000000b002cc3de1ae5bmr13217754ilj.288.1651160373684; Thu, 28 Apr 2022 08:39:33 -0700 (PDT) Received: from [192.168.1.172] ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id u1-20020a056e02080100b002cd6b0e772dsm110390ilm.45.2022.04.28.08.39.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Apr 2022 08:39:33 -0700 (PDT) Message-ID: <001823d5-13cb-1b03-9ffa-686081123d08@kernel.dk> Date: Thu, 28 Apr 2022 09:39:31 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [syzbot] KASAN: use-after-free Read in add_wait_queue Content-Language: en-US To: syzbot , asml.silence@gmail.com, gregkh@linuxfoundation.org, io-uring@vger.kernel.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000765a6105ddb8a8b9@google.com> From: Jens Axboe In-Reply-To: <000000000000765a6105ddb8a8b9@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org #syz fix: io_uring: fix assuming triggered poll waitqueue is the single poll -- Jens Axboe