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 803DBC54E94 for ; Mon, 23 Jan 2023 14:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230354AbjAWOQc (ORCPT ); Mon, 23 Jan 2023 09:16:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232236AbjAWOQc (ORCPT ); Mon, 23 Jan 2023 09:16:32 -0500 Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3924D279B1 for ; Mon, 23 Jan 2023 06:16:28 -0800 (PST) Received: by mail-pj1-x1036.google.com with SMTP id 88so196868pjo.3 for ; Mon, 23 Jan 2023 06:16:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=jP1b55ki+STn0s6xh8gZR/iPcnLxk3LVkuJyMpHsjHY=; b=2EXt2dKJQfDDZ5KLn9ti25dsk2K3z7BoGO9aFN5ywV3yMvlb5iH2Qi9Et3rDuJUkOT zlmL2X1FDcCbrxG5ZOAOKpbfad3hDv6K3CwRExpXmx7NtaIhmZY3srQiTMddlwtf3yWt FVBdS9EDDADXBzssdG5OEB+JEP6vEMMgKo3rTprPRYc0woziacNaEvM2XH8DSQdCvt5j 9/y8RGPdRTEqFRI2+J2HdExN4zkv9aElNA+07eOygvA+bQnBCC4lCTmNU+1jXtpUZLnz vJjRU+HzOI6g/XlAJHxuQUwascIHaIPdUR5Ufp4PVZwt5s11bcERjs4oH4gHMRyqKBok 1ttQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=jP1b55ki+STn0s6xh8gZR/iPcnLxk3LVkuJyMpHsjHY=; b=C+9NAQ5BnPiyE2by9IveYTTeEbuYWANbOTbtcsEHewT9FdT0Fzs6Ufszd7siCKDd6j MNneqZpvgZVvAlA+3cRl5n/NxS4DvWViKEFMnFDO7Yv3/lReHDOQ0x9SlkCT3W6UmXBa VrmWGjlOZrH80S4tdpcnat6MRxpU6g30CuVA1HEv/hf7uHwtWUjgCnw/CO6eagQ1fP7K g1mLRljyE95U2a7WnXen2ZyYFDBoBcepd7zd8yO5G4Vzo57V791NGnyUG0VuxChGKbSA Y4PffYKme2DexJCy3nv2mzs29c7KSJzitk3RwEXmrYwVfhxPfyv6CCZ0jRVbSXKP78e4 QJCA== X-Gm-Message-State: AFqh2kplNz0q19yzvEzBNlCPuTrE/uw2MkmNdSuTcar31+BWFoRl2gJk vgc7SUVLAxk/flTlMAlQsMXR6vBM2aixFMJk X-Google-Smtp-Source: AMrXdXv3yfVBJr008KwGfMb4IrHInNrkgbokM3hyM5BKI3cxz2BttrRhDW9Xyg7TWQhAUfsxT2eBjg== X-Received: by 2002:a17:90b:710:b0:229:d7f1:9e2b with SMTP id s16-20020a17090b071000b00229d7f19e2bmr4230001pjz.3.1674483387667; Mon, 23 Jan 2023 06:16:27 -0800 (PST) Received: from [192.168.1.136] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id t12-20020a17090a024c00b00228f45d589fsm6570644pje.29.2023.01.23.06.16.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Jan 2023 06:16:27 -0800 (PST) Message-ID: <9ba8e211-9264-11db-5991-7fc733c559cf@kernel.dk> Date: Mon, 23 Jan 2023 07:16:26 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [syzbot] WARNING in io_get_cqe_overflow Content-Language: en-US To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000000b45a105f2e781db@google.com> From: Jens Axboe In-Reply-To: <0000000000000b45a105f2e781db@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 1/22/23 10:16 PM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: edb2f0dc90f2 Merge branch 'for-next/core' into for-kernelci > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=11cb0589480000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a1c301efa2b11613 > dashboard link: https://syzkaller.appspot.com/bug?extid=200ab9a0f030458682a9 > compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 > userspace arch: arm64 > > Unfortunately, I don't have any reproducer for this issue yet. #syz fix: io_uring/msg_ring: fix missing lock on overflow for IOPOLL -- Jens Axboe