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[2604:1380:45d1:ec00::1]) by mx.google.com with ESMTPS id bj15-20020a05620a190f00b0078f11496cadsi6454667qkb.168.2024.04.20.08.48.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Apr 2024 08:48:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-152311-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1; 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-152311-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-152311-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 ny.mirrors.kernel.org (Postfix) with ESMTPS id 373791C20A47 for ; Sat, 20 Apr 2024 15:48:08 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 47DEA374C1; Sat, 20 Apr 2024 15:48:03 +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 F0F9110A31 for ; Sat, 20 Apr 2024 15:48:00 +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=1713628082; cv=none; b=spYGeLpRYD/MtkRLRH8IweOVEn9Wq5OOUdgMMANDwUiIWEwj30ZehFyzCx6eIwF6Yc9J8ioPMKcZcBN6UWk1/HwO6NiCl6moDWR7CoaZROoLjh593TS1anrGy1ikS37gwaNWZl3kbN1KUEz8G0dcMN5wOE+MeWMpud0SimX+bu8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713628082; c=relaxed/simple; bh=MrauLE7vTIJ56o0G5yI1/rmSGSVS4GvOYwtIC8oySNA=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=UzVm8uGAzc2KIL9+l7voOfsx3+5L3j38fcoZEHZdNBI0GaWoywWYFsDacPEEHrdf4lqekja6MK0Z2b+7ArsV6j7uRRZ5KQDJaKAaRmPvUCA4IkmDvuuuakcdaut/i0XiQtHsUW+PZFY6iAgWvOt/Qky7x+6uY03Kyg1uo+SdzdA= 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 fsav314.sakura.ne.jp (fsav314.sakura.ne.jp [153.120.85.145]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 43KFlsM8051018; Sun, 21 Apr 2024 00:47:54 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav314.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav314.sakura.ne.jp); Sun, 21 Apr 2024 00:47:54 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav314.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 43KFlsGh051015 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Sun, 21 Apr 2024 00:47:54 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <58456c29-f4d7-44cb-9b30-e6af57a2c884@I-love.SAKURA.ne.jp> Date: Sun, 21 Apr 2024 00:47:53 +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?] [trace?] possible deadlock in put_pwq_unlocked To: syzbot , linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000082553906162e498a@google.com> Content-Language: en-US From: Tetsuo Handa In-Reply-To: <00000000000082553906162e498a@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