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Thu, 10 Oct 2024 17:23:19 -0700 (PDT) MIME-Version: 1.0 References: <20241008040942.1478931-2-jeffxu@chromium.org> <20241008041804.1481453-1-jeffxu@chromium.org> <5e1ef8a0-f063-4166-9d93-cf047cdd2792@infradead.org> In-Reply-To: <5e1ef8a0-f063-4166-9d93-cf047cdd2792@infradead.org> From: Jeff Xu Date: Thu, 10 Oct 2024 17:23:06 -0700 Message-ID: Subject: Re: [PATCH] mseal.rst additional fix To: Randy Dunlap Cc: akpm@linux-foundation.org, keescook@chromium.org, corbet@lwn.net, jorgelo@chromium.org, groeck@chromium.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, jannh@google.com, sroettger@google.com, pedro.falcato@gmail.com, linux-hardening@vger.kernel.org, willy@infradead.org, gregkh@linuxfoundation.org, torvalds@linux-foundation.org, deraadt@openbsd.org, usama.anjum@collabora.com, surenb@google.com, merimus@google.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, enh@google.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 70C074000E X-Stat-Signature: emceikfj74u98axhyxhtyw4zsjj3x7se X-Rspam-User: X-HE-Tag: 1728606198-946302 X-HE-Meta: U2FsdGVkX19m29qC9wNl8r+Kr/WzWWlbyKwTDOLO1xO7yeeJn8sO3ez6brScbUKAb7Gku1w2lxWp02xAzvaNyOJlS7guCZSlSZvjx9aTD9wUM/0SalaST46eQoqEmtLveJQBfpyzSXgTBW8UBan0bbAii3Tt81P1NPWuDHMbzXLPBcvqzVPLYBzGAyxxyHGU1PDs0oZIUOAmql0WVDbIrSTKAS2l6OtkBv3fFTUVddJJVi3HpYWJ5yspH/4LSTVTPjH2IWpZoA38WogWaVvRQzyZMWx7p60exFiyKpOwXcbVYKvGHd5XyKh9owRSb+FiGQBegyBklAlvwt7BjFTryEWVldumWv1vEwULQYDCMFCGqCIJNZi2is5FnaZP3ox39d+xS3lW7InQk+SmiUVmjrP8q5gUmB9F1acRGtCIqjYUbo8SbOwibDyVF/t2OZJ98Cr5D1/pxCJn2QAfocKZrM4QKbac1c+FzRsaZRRysVDwj9rgyPOl1rFlu/Tx9pOrI0wGg1EFGtGcQPiZz6HPUgAMqnqZaOM/FOUBQuGj3ZgeUseT9RgpvjOf/VYvd3aApOxECb7jOjxAiTlJSJmN6sgSp58+mfkN3+IxbqYGf77rDwuCQohXoH8Crci8dNJK5StLMeXvmfPH0QG4hmydedAZ/goYhsAKsaRKGSEuof6HOCrEZe3JeZolXqo6Sm+hvLO7mSpQAwqhR4FinCjPPBvGw3VbniiFk6J08d8wBNhOJYW1LRHLF755Fl+0u1mavzEqJpRiCtEaIYzONfrFn3WqUh5WiPbQHvFXUKMtujv9+terwPUkL3A6O1YZIqjoKviaIQ35NTElS9sGhwp3NcP5ux/0ooUTDEZyTduEG0Hv253DivuWb/yTBc/NnyHoZuAeQ53Ui32UhRbQA5TBoeu6yvu/q6UKJnFjd67YOF6g9N5J3Leppf2zb2WTaxjvFpYiGAfaeoJhw54lseN clMg9oLx VJ4hhtKvSwALqVdgsovZx0IDHdqeMdjgAaJ1ijtqFbjBJM9rW06BDJAsBTbdxNXj/IkYvtRgVHlTHz/0jnUZzQuXOl5rvLSFoPfEeeI+nU/rjmtvkYxS0DzNyIRNkXdH/sC2ECZ/bhtlfkredS9ibOGqevk1ajqoKP5h2J0CYJACC7pkARgQ16omnsHJm51aCwh1Dw9JSxn0g47dREJgpyyC5avDFpXt08iLkEGAVNEcvYMWCBOW9CMpiefQ4bWLsujV8eriJhIA6prGqDGexk3zFaCifzyDDXpbNWX+MCoKdNzDkYtjqP0xbm7gZ4BN57wy6QV1oad5pOSeNg2k7htFNeqjri2t8SEJ2 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 Tue, Oct 8, 2024 at 9:37=E2=80=AFAM Randy Dunlap = wrote: > > > > On 10/7/24 9:18 PM, jeffxu@chromium.org wrote: > > From: Jeff Xu > > > > Change "overwrite" to overwrites" > > > > Signed-off-by: Jeff Xu > > --- > > Documentation/userspace-api/mseal.rst | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/Documentation/userspace-api/mseal.rst b/Documentation/user= space-api/mseal.rst > > index 41102f74c5e2..54bbcce330ec 100644 > > --- a/Documentation/userspace-api/mseal.rst > > +++ b/Documentation/userspace-api/mseal.rst > > @@ -97,7 +97,7 @@ Blocked mm syscall for sealed mapping > > The first set of syscalls to block is munmap, mremap, mmap. They ca= n > > either leave an empty space in the address space, therefore allowin= g > > replacement with a new mapping with new set of attributes, or can > > - overwrite the existing mapping with another mapping. > > + overwrites the existing mapping with another mapping. > > No, that one is correct as is. > Ah, yes. Please ignore this additional patch. > > > > mprotect and pkey_mprotect are blocked because they changes the > > protection bits (RWX) of the mapping. > > -- > ~Randy