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commit22cf8419f1upstream. The server is failing to apply the umask when creating new objects on filesystems without ACL support. To reproduce this, you need to use NFSv4.2 and a client and server recent enough to support umask, and you need to export a filesystem that lacks ACL support (for example, ext4 with the "noacl" mount option). Filesystems with ACL support are expected to take care of the umask themselves (usually by calling posix_acl_create). For filesystems without ACL support, this is up to the caller of vfs_create(), vfs_mknod(), or vfs_mkdir(). Reported-by: Elliott Mitchell <ehem+debian@m5p.com> Reported-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Fixes:47057abde5("nfsd: add support for the umask attribute") Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.