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a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1730873778; bh=pQlq7hHPU1Y1m8Iq0RTWGhBrUrFVOfLg2Zpy9RE9zsU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=1fTkmcG0N/uvrisql3iDehlDzBNxDNe9oSfkHDOaITMwxsTkdkYbtTOC9lGFg1dwl eMRGjVGRQcsNNJJ3jMsXvMea55ta6/60nim8jexRPhGVrhD/NnBNGv5hgahleeqztB pR75KwmvLCaR4VCYlltAkgEgUf3CMOSWOzvwUlZQ= Date: Wed, 6 Nov 2024 07:16:00 +0100 From: Greg KH To: Yu Kuai Cc: stable@vger.kernel.org, harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, viro@zeniv.linux.org.uk, brauner@kernel.org, Liam.Howlett@oracle.com, akpm@linux-foundation.org, hughd@google.com, willy@infradead.org, sashal@kernel.org, srinivasan.shanmugam@amd.com, chiahsuan.chung@amd.com, mingo@kernel.org, mgorman@techsingularity.net, yukuai3@huawei.com, chengming.zhou@linux.dev, zhangpeng.00@bytedance.com, chuck.lever@oracle.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, maple-tree@lists.infradead.org, linux-mm@kvack.org, yi.zhang@huawei.com, yangerkun@huawei.com Subject: Re: [PATCH 6.6 00/28] fix CVE-2024-46701 Message-ID: <2024110625-earwig-deport-d050@gregkh> References: <20241024132009.2267260-1-yukuai1@huaweicloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241024132009.2267260-1-yukuai1@huaweicloud.com> X-Rspam-User: X-Rspamd-Queue-Id: A423140003 X-Rspamd-Server: rspam01 X-Stat-Signature: ykgcjrkt5nozjmojua9g77s7ae34ugju X-HE-Tag: 1730873745-351013 X-HE-Meta: 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 j4PHJGm8 3HnOA07DzayKhtU51AA2IRe7zd8MpQCX3P6OmPTaw0ds8BQ3WHg6A7U7LtgJwrHQbyFGkfvq7qXVkAj1lUhVjfd0swrCIhunqWdLj1PuHeZ+wBJIh2INKLJkai54qIsQud5aXOItVzDoLZzeJC1YLz/zooZNNGFV5xQiMmC9GMy6m98PmZlY2xFlPlmqady85ghbTGcTwoIHE0eROFIWeTpyoInu3culn/UpGTOSzxd7ThkX6fMRicdlyzZaBm/nf6e04AbbxvR3xD4mXiAfwFaomIkxXX4jnXH30B9S566sTxA9BdJlcItmxS1PwFbSxcWJQQOT903VTBkmXvjMq5hArijy/4vH/l2xgrAuzWFkK9e0MEz0YYtcUrbDauTkmCiFZNMaq6+BYN07JqCSR8JXjNqBbWFV9aQfskKI3L0i6YlkFvYp7/whqDsqirX0t++rA X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Oct 24, 2024 at 09:19:41PM +0800, Yu Kuai wrote: > From: Yu Kuai > > Fix patch is patch 27, relied patches are from: > > - patches from set [1] to add helpers to maple_tree, the last patch to > improve fork() performance is not backported; So things slowed down? > - patches from set [2] to change maple_tree, and follow up fixes; > - patches from set [3] to convert offset_ctx from xarray to maple_tree; > > Please notice that I'm not an expert in this area, and I'm afraid to > make manual changes. That's why patch 16 revert the commit that is > different from mainline and will cause conflict backporting new patches. > patch 28 pick the original mainline patch again. > > (And this is what we did to fix the CVE in downstream kernels). > > [1] https://lore.kernel.org/all/20231027033845.90608-1-zhangpeng.00@bytedance.com/ > [2] https://lore.kernel.org/all/20231101171629.3612299-2-Liam.Howlett@oracle.com/T/ > [3] https://lore.kernel.org/all/170820083431.6328.16233178852085891453.stgit@91.116.238.104.host.secureserver.net/ This series looks rough. I want to have the maintainers of these files/subsystems to ack this before being able to take them. thanks, greg k-h