This patchset builds on the work by Donsu Park and Seth Forshee and is reduced to the set of patches that just affect fuse. The non-fuse patches are far enough along we can ignore them except possibly for the question of when does FS_USERNS_MOUNT get set in fuse_fs_type. Fuse with a block device has been left as an exercise for a later time. I had to change the core of this patchset around some as the previous patches were showing signs of bitrot. Some important explanations were missing, some important functionality was missing, and xattr handling was completely absent. Miklos can you take a look and see what you think? I think this much of the fuse changes are ready, and as such I would like to get them in this development cycle if possible. My apologies if I have lost someone's ack or review somewhere. Let me know and I will fix it. These changes are also available at: git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git userns-fuse-v6 Eric W. Biederman (4): fuse: Remove the buggy retranslation of pids in fuse_dev_do_read fuse: Fail all requests with invalid uids or gids fuse: Support fuse filesystems outside of init_user_ns fuse: Ensure posix acls are translated outside of init_user_ns Seth Forshee (1): fuse: Restrict allow_other to the superblock's namespace or a descendant fs/fuse/acl.c | 4 ++-- fs/fuse/cuse.c | 7 ++++++- fs/fuse/dev.c | 26 +++++++++++++------------- fs/fuse/dir.c | 16 ++++++++-------- fs/fuse/fuse_i.h | 7 ++++++- fs/fuse/inode.c | 38 ++++++++++++++++++++++++++------------ fs/fuse/xattr.c | 43 +++++++++++++++++++++++++++++++++++++++++++ kernel/user_namespace.c | 1 + 8 files changed, 105 insertions(+), 37 deletions(-) Eric