From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f53.google.com (mail-wr1-f53.google.com [209.85.221.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80ED8339A0 for ; Wed, 18 Sep 2024 06:16:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726640207; cv=none; b=IsBON2bHPhKo6bhsnTf/XyGsmJro76M+Tkh9ZlkHJd7nfeb34g4cK+nXk4/v/Hjxnx/ZPtuSo3apSAo31V+/mKs0p4U5eC/WUVRov2R1YTRwJ99FjRG+fXpZGkDiDfkWO29JuuS5z3m4uv2p0sRMV/FCl9izScsIRXJcGiRrGDA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726640207; c=relaxed/simple; bh=h1x8IJe7lN71i2zcyIYHpbVMlL8euNj1bt8GoLm/poc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rSeb55eePdMBgygkUWw6wYMDt27xe1uNWZp9AJXtc6462BdnEWlEtwfD1IVkCPdkpzzwJVqup+a78YVWRIOFAPQJo4mB2Q7AIU1LQaXbVXKLSwW7KZdaZ+/+IGtimdM7JcAqLxwgtYsWMCZCDwCQY0bePEsOD7laY2CO9RNcQL0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=lN4/S6z7; arc=none smtp.client-ip=209.85.221.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="lN4/S6z7" Received: by mail-wr1-f53.google.com with SMTP id ffacd0b85a97d-3770320574aso4612447f8f.2 for ; Tue, 17 Sep 2024 23:16:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1726640203; x=1727245003; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=mIPhQLcvTE4j+71hp94TpiU+POERqSJhs24nbUaj6GI=; b=lN4/S6z7mQaK5vKh8F0fZmMOk4JaEwrDg4Omu4frLz9GvDPu7IMYiGPEJ5bPQna6+x CDxUFpuVxy6vJxpZcXFW223jat3nFVyADDoEwA1hr+A7mnPi9b1oSuCJCicFlghsCLn1 H1wgc0GbRfw59taNgl9saqQMaXd6eDdvuwB2+5fgzkVkc5hFL0HOQNAxaR95J8ZPv7pu LHD4YWNgwN4cezYLGN5Bha29o4AWwedPH4fORVkoZt4/DaTNpYASsubOqapz5zq0z6RO HJhir+X6/gJWNBGAU3HyBJOh0jeudh+t7AjaM7xYBewuEWu8vy7hNSc0SqyGKh8gDvqu jRag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726640203; x=1727245003; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=mIPhQLcvTE4j+71hp94TpiU+POERqSJhs24nbUaj6GI=; b=F4lrgu36aZLJrWQyufMErhHYqEbXdEA36D5LOI9bcfaUmt5R5XcCce0+f46z6cOC01 rA3nQNhSiKlTtKoVPLHe+oINCGJmeLn2OL4a75/Uh6sKRzikKlLw0uUbdyA2BPGMm/cx aFyqjejnIvNdmqj1wFGqYMSwTdCbdkTC7QnflLJ6D9GjwvgkkbvBFVlPEvwqC34VVlkm RlMHGlAUtcYSnOEjlyi614ID9Cla452lU1Gm2ua2DILeLICFlY+no32ZvM1dXVC5GmXw gJ6I64LLtSUPM1cE16nDanFk2muGVmgqJAoFUvr03ty3WM9meqFXwhWNuP/usaSig6K5 WizA== X-Forwarded-Encrypted: i=1; AJvYcCXoJIPEinY3osDpuAc6aucu4vMEICSDqlTjYPOmSKcUrXCIeR4iKvtDMz1WzGpNi94DXvOIdRM=@vger.kernel.org X-Gm-Message-State: AOJu0YyFgTI06e7CCOSpV/eYW3wmPGGtUkvaux/DP9ZmKXwMA+olB8qj Gulzb7/QFWNgvaI1Y2IvutwXcvrDODLeZJlHqNemUpYE27m8OnNF/CYtWVBJYsg= X-Google-Smtp-Source: AGHT+IF482qm71OBg3dA9iPtz3GXklywXbZ8iO2oGy5tKPfIAb/pGMdrJk3Kh+CMA8pz8uQTeQT01Q== X-Received: by 2002:adf:9c09:0:b0:374:c3a2:2b5e with SMTP id ffacd0b85a97d-378c2d5b1cbmr10327577f8f.37.1726640203319; Tue, 17 Sep 2024 23:16:43 -0700 (PDT) Received: from [192.168.0.216] ([185.44.53.103]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-378e78044easm11411043f8f.91.2024.09.17.23.16.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Sep 2024 23:16:42 -0700 (PDT) Message-ID: <5237b4c0-973f-44cc-a6ee-08302871fd19@kernel.dk> Date: Wed, 18 Sep 2024 00:16:41 -0600 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/1] io_uring/sqpoll: do not allow pinning outside of cpuset To: "Lai, Yi" , Felix Moessbauer Cc: asml.silence@gmail.com, linux-kernel@vger.kernel.org, io-uring@vger.kernel.org, cgroups@vger.kernel.org, dqminh@cloudflare.com, longman@redhat.com, adriaan.schmidt@siemens.com, florian.bezdeka@siemens.com, stable@vger.kernel.org, syzkaller-bugs@googlegroups.com, pengfei.xu@intel.com, yi1.lai@intel.com References: <20240909150036.55921-1-felix.moessbauer@siemens.com> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/17/24 9:56 PM, Lai, Yi wrote: > Hi Felix Moessbauer, > > Greetings! > > I used Syzkaller and found that there is KASAN: use-after-free Read in io_sq_offload_create in Linux-next tree - next-20240916. > > After bisection and the first bad commit is: > " > f011c9cf04c0 io_uring/sqpoll: do not allow pinning outside of cpuset > " This is known and fixed: https://git.kernel.dk/cgit/linux/commit/?h=for-6.12/io_uring&id=a09c17240bdf2e9fa6d0591afa9448b59785f7d4 -- Jens Axboe