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When we create a file with modefromsids we set an ACL that has one ACE for the magic modefromsid as well as a second ACE that grants full access to all authenticated users. When later we chante the mode on the file we strip away this, and other, ACE for authenticated users in set_chmod_dacl() and then just add back/update the modefromsid ACE. Thus leaving the file with a single ACE that is for the mode and no ACE to grant any user any rights to access the file. Fix this by always adding back also the modefromsid ACE so that we do not drop the rights to access the file. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Reviewed-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.