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Howlett" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org, Peng Zhang Subject: Re: [PATCH] maple_tree: Fix potential out-of-bounds access in mas_wr_end_piv() Message-Id: <20230507174652.65fb5725c3a72dd293d417b3@linux-foundation.org> In-Reply-To: <1570feed-489c-82f7-8d6b-9f53e9ebb87e@gmail.com> References: <20230504031422.47506-1-zhangpeng.00@bytedance.com> <20230506011447.2e47mf5kwwo4yz4r@revolver> <1570feed-489c-82f7-8d6b-9f53e9ebb87e@gmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 54B9540005 X-Stat-Signature: csw73kp3njxwcsneqkok7cefitj8xmpq X-Rspam-User: X-Rspamd-Server: rspam09 X-HE-Tag: 1683506815-408976 X-HE-Meta: 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 OVqTamgR OCasxswcJg52M3PHP4mgmZIGF0pOS5f2BUXj84lVRme9leXNljqu4eXTDzyDjttcUU0+qGmjxFIY3F/AiH9qQQfWMAeXfzhlrZeINKnVrczhyKOrBwlWLnzma2SmZP7futTEdQ6He2NBkhzFUOWJQ1xLB125FtCTwwz9j0Knj84wzk5ixOUhsAxgAxJdw60dbgIQ04DpfS2c9IgCvDZBxhXuVE1sYJwOI0PcmsMw2IwWhBZlXVUMrhegALm7AFUMIIxuhMuPn6nEQ4OFQZkJaECo3AT9EjH7rwsiT6z0GweyuucN697CBL5HSbCqmvSIBlFauQhw6mBbkkjlfGdyihv/2+0JTT2w8HEV/gGu2xB5EyHTjfhnqh3mXunNVcNpv3HYX9zkGVlmTpK0= 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: On Sat, 6 May 2023 09:48:19 +0800 Peng Zhang wrote: > >> Fixes: 54a611b60590 ("Maple Tree: add new data structure") > > > > Cc stable ? > I don't know if it should be cc stable since Andrew says it > always needs to describe user-visible impact. I suppose we may as well backport it - there may be new users of maple tree which *do* trigger this, and anyone who who tries to backport those users into earlier kernels will get a nasty surprise. So I'll add cc:stable to v3, but I won't queue it as a hotfix, so it's well tested before we propose the backport.