Messages in this thread | | | From | Miklos Szeredi <> | Date | Wed, 20 Jan 2021 08:52:27 +0100 | Subject | Re: [PATCH 1/2] ecryptfs: fix uid translation for setxattr on security.capability |
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On Tue, Jan 19, 2021 at 10:11 PM Eric W. Biederman <ebiederm@xmission.com> wrote: > > Miklos Szeredi <mszeredi@redhat.com> writes: > > > Prior to commit 7c03e2cda4a5 ("vfs: move cap_convert_nscap() call into > > vfs_setxattr()") the translation of nscap->rootid did not take stacked > > filesystems (overlayfs and ecryptfs) into account. > > > > That patch fixed the overlay case, but made the ecryptfs case worse. > > > > Restore old the behavior for ecryptfs that existed before the overlayfs > > fix. This does not fix ecryptfs's handling of complex user namespace > > setups, but it does make sure existing setups don't regress. > > Today vfs_setxattr handles handles a delegated_inode and breaking > leases. Code that is enabled with CONFIG_FILE_LOCKING. So unless > I am missing something this introduces a different regression into > ecryptfs.
This is in line with all the other cases of ecryptfs passing NULL as delegated inode.
I'll defer this to the maintainer of ecryptfs.
Thanks, Miklos
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