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[139.178.88.99]) by mx.google.com with ESMTPS id s127-20020a637785000000b005f803c50fe9si2349207pgc.186.2024.04.20.07.31.45 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Apr 2024 07:31:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-152293-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=i-love.sakura.ne.jp); spf=pass (google.com: domain of linux-kernel+bounces-152293-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-152293-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id F27C12818EE for ; Sat, 20 Apr 2024 14:31:44 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2B4A41E497; Sat, 20 Apr 2024 14:31:40 +0000 (UTC) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74631134DE for ; Sat, 20 Apr 2024 14:31:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.181.97.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713623499; cv=none; b=QXz8zJtsV3TE292Vzo66UQvuhPwAjvfyus+ep39+WsIrJjEf8ydxVT08C+l9AmD01vy0L2ttOZKXtJqoVCJVKGh9vN60UQ3/uJ59yyMQ7SGiTsMPBavW1AHCE190uq9WqCzGvkmtx5VZi+D1dm0yh8hlVUlEf41lvHunrgxSTMs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713623499; c=relaxed/simple; bh=MrauLE7vTIJ56o0G5yI1/rmSGSVS4GvOYwtIC8oySNA=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=RzeLfrpa5fT+XZU3dSxbm6x9UWmGD4cSlluHXo2qeBfaoRSPm2e/EMfwH5OkliLrSagXVWIUXg9dtDFpzFbWpsCQqY5jJpvcHxRLfsmWkyCJCKN/X7gavcOuPi1RwFHijKzmay+MVnRQ+r0+xEZjc7efccmJQTGE9jUkWiFYuEI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp; arc=none smtp.client-ip=202.181.97.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp Received: from fsav115.sakura.ne.jp (fsav115.sakura.ne.jp [27.133.134.242]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 43KEVU7p032571; Sat, 20 Apr 2024 23:31:30 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav115.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav115.sakura.ne.jp); Sat, 20 Apr 2024 23:31:30 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav115.sakura.ne.jp) Received: from [192.168.1.6] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 43KEVUK8032568 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Sat, 20 Apr 2024 23:31:30 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <4938766e-e9fb-4d30-ae7f-0759b9b7224c@I-love.SAKURA.ne.jp> Date: Sat, 20 Apr 2024 23:31:29 +0900 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [bpf?] [net?] possible deadlock in scheduler_tick (3) To: syzbot , linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000064f78806141c027e@google.com> Content-Language: en-US From: Tetsuo Handa In-Reply-To: <00000000000064f78806141c027e@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #syz fix: bpf, sockmap: Prevent lock inversion deadlock in map delete elem