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For a while now any NFSv2 mount where sec= is specified uses AUTH_NULL. If sec= is not specified, the mount uses AUTH_UNIX. Commite68fd7c807("mount: use sec= that was specified on the command line") attempted to address a very similar problem with NFSv3, and should have fixed this too, but it has a bug. The MNTv1 MNT procedure does not return a list of security flavors, so our client makes up a list containing just AUTH_NULL. This should enable nfs_verify_authflavors() to assign the sec= specified flavor, but instead, it incorrectly sets it to AUTH_NULL. I expect this would also be a problem for any NFSv3 server whose MNTv3 MNT procedure returned a security flavor list containing only AUTH_NULL. Fixes:e68fd7c807("mount: use sec= that was specified on ... ") BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=310 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.