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Thu, 13 Apr 2023 16:58:56 -0700 (PDT) Date: Thu, 13 Apr 2023 16:58:55 -0700 (PDT) From: David Rientjes To: Yang Shi , willemb@google.com cc: David Hildenbrand , Vlastimil Babka , kirill.shutemov@linux.intel.com, jannh@google.com, Matthew Wilcox , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [v4 PATCH] fs/proc: task_mmu.c: don't read mapcount for migration entry In-Reply-To: Message-ID: <67d3e5e1-57be-590d-f925-47b49442a67e@google.com> References: <20220203182641.824731-1-shy828301@gmail.com> <132ba4a4-3b1d-329d-1db4-f102eea2fd08@suse.cz> <9ba70a5e-4e12-0e9f-a6a4-d955bf25d0fe@redhat.com> <64ec7939-0733-7925-0ec0-d333e62c5f21@suse.cz> <5618f454-7a88-0443-59e7-df9780e9fa50@redhat.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="2003089352-1481215759-1681430336=:63269" X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 2604E120008 X-Stat-Signature: 4agbec6nwnt11tpmsap55jgsitq4tnn9 X-HE-Tag: 1681430337-899268 X-HE-Meta: U2FsdGVkX1+s8nU2IS9UTJ7ZwyhOzOF4RmoaxuT8jk1VFvrbwTqcZmqpWh9XQpEbhCnaOyjv7E/vykwSwItS+bxc/L1u3aoIEUXHci5n5gKx43kPQfUUVWHrhsstG6o7XELgDbnKx0ibTBMkq6PeulQjPXuKWtK1mJRul0whWTLmFaUq8zwZMWQ8FjqtUAaGeJ+S6BqBB8uWeo6xiByvuho6rOsSEkKxCiVk5lknQn18z+yakhAK3KNffxJ30RFZvHMxR78Uf8LTHsk92zRA6bo9F+eSs2EVEuHb1Ksq3haDdM7A4F0U+f1uZjBPuAqKa2oyL/imY2uLY2LtMXZQKi1oT3p50qj6UezfxiKvUwPbv6TUDARHbLqf3k6qunJDgTTjz4yHX/GHH4ngxKgM+pFP89PoTPB6q9EaVyP7DY5OEftZ9uRmpYguzzHZSuPEPR543HOOqvdo5gYW0vAdOzV1Nu38tBXqOdV6Vkh2c9dsmPjj3UaSUjL5LJEgADQPEdjroCyUfYZ9aejxqx/1Bf3VUL7NtgFP7HoKG8oC0128iD6hAQsNV4nitLgMDIioaXMnNPaJCrKxztHCabg31RaQOdEJzbXYkQOydFi4hz9OEMJFZPw+D0FzGWLjXZGuufOww+Z2cN6uUVzS1EqS4xZyZVylst3EP0jpLbqOO4fUCfVf1S3A9h0aT89vRf5tHe5lkX+Pp8ZhH7F9WQXZPTyWozHzjQ5HVMX4UG40TKb2JHm5Jh7K4/wQnflD0/nK393mxkfjLERWlZLo7ah9CvIG9rZne2NFiSiPHAIgymCA8iwvG2i6mcj+tBsQEPkfYsQZAQiP1svVePoOXG9GBizoO2lZ9IlCjv4U8tNp2LF0JrpYGw9bkRuFPO1flIuEYI1sNHok18ExmGGyBAofvUAc2zpr72eI45A+QMJjEWR7mH1CWNcHvFvWBUwe+IrDmgijaobhqfu3HlQ2Ihy ZJXbS20u 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 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: This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --2003089352-1481215759-1681430336=:63269 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT On Mon, 3 Apr 2023, Yang Shi wrote: > On Mon, Apr 3, 2023 at 12:30 AM David Hildenbrand wrote: > > > > On 24.03.23 21:12, Yang Shi wrote: > > > On Fri, Mar 24, 2023 at 4:25 AM Vlastimil Babka wrote: > > >> > > >> On 3/23/23 21:45, Yang Shi wrote: > > >>> On Thu, Mar 23, 2023 at 3:11 AM Vlastimil Babka wrote: > > >>> > > >>> Out of curiosity, is there any public link for this CVE? Google search > > >>> can't find it. > > >> > > >> Only this one is live so far, AFAIK > > >> > > >> https://bugzilla.redhat.com/show_bug.cgi?id=2180936 > > > > > > Thank you. > > > > There is now > > > > https://access.redhat.com/security/cve/cve-2023-1582 > > Thank you. > Hi Yang, commit 24d7275ce2791829953ed4e72f68277ceb2571c6 Author: Yang Shi Date: Fri Feb 11 16:32:26 2022 -0800 fs/proc: task_mmu.c: don't read mapcount for migration entry is backported to 5.10 stable but not to 5.4 or earlier stable trees. The commit advertises to fix a commit from 4.5. Do we need stable backports for earlier trees or are they not affected? Thanks! --2003089352-1481215759-1681430336=:63269--