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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=cwtUFVRs; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26F4B606A321 for ; Tue, 10 Nov 2026 11:56:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=cwtUFVRs Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1115A1F0089F; Tue, 10 Nov 2026 11:56:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794311764; bh=GLf0Ep+556oH4nzp01w7P9EeSzhM7UH0btQDrYtOz88=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=cwtUFVRsZcXH7K+rIyijFJpAcn3DP/8ZFsiYD45g34++Dl1aLpMb7ybHwcWgi1Kva Q7KgWfBO4s5ntM9MbDHi3Ahf1/72ew3pdQ4PIiss+ij4yOVZUnGvENXnR7f1+xcBJZ moOvk/gyJbA/XBKXYXRziSdkXNBLrswnJGX4O/wK+ZObfQEkPc4NvOcbNrHC/Ct1Jq NXlCxE8pDNNPoNrRd64zyxl4X1o3aGgUPDH3BjKgKtweLoR+eHBhBZAg1Q0653/b26 w/jtFx1ssj+skmeegP3HXSZay7GNi/GvOwKebGhFvPxNa3MJ88Z4zH5VHD+0W0BIIB VE9eCD90HFc0w== Message-ID: <60541e98-b1f0-4f92-a155-8a29c0bb17dc@kernel.org> Date: Tue, 10 Nov 2026 12:55:58 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [SECURITY] mm: khugepaged collapse_file() drops RWP PTE markers To: n3rd <18670333770@163.com>, "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Cc: "akpm@linux-foundation.org" , "ljs@kernel.org" , "kas@kernel.org" , "ziy@nvidia.com" , Mike Rapoport , "peterx@redhat.com" , "security@kernel.org" , Tal Zussman References: <606cae9e.bbec5.1a1c54f4f9f.Coremail.18670333770@163.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/10/26 12:54, n3rd wrote: > > Hello, > > I am reporting a security bug in the Linux kernel. Stop sending uffd problems as security bugs. STOP IT NOW. Tal has a long list of uffd-related fixes he is about to send out. CCing him. -- Cheers, David