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author | Marc Dionne <marc.dionne@auristor.com> | 2017-07-06 15:50:18 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-09 14:40:12 -0700 |
commit | fd2498211a551fd42b2d6b9050d649d43536e75c (patch) | |
tree | 584019e61d101ed7bdfa209c55463da751ed55ae /fs/afs/xattr.c | |
parent | f991af3daabaecff34684fd51fac80319d1baad1 (diff) | |
download | linux-next-fd2498211a551fd42b2d6b9050d649d43536e75c.tar.gz |
afs: Ignore AFS_ACE_READ and AFS_ACE_WRITE for directories
The AFS_ACE_READ and AFS_ACE_WRITE permission bits should not
be used to make access decisions for the directory itself. They
are meant to control access for the objects contained in that
directory.
Reading a directory is allowed if the AFS_ACE_LOOKUP bit is set.
This would cause an incorrect access denied error for a directory
with AFS_ACE_LOOKUP but not AFS_ACE_READ.
The AFS_ACE_WRITE bit does not allow operations that modify the
directory. For a directory with AFS_ACE_WRITE but neither
AFS_ACE_INSERT nor AFS_ACE_DELETE, this would result in trying
operations that would ultimately be denied by the server.
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/afs/xattr.c')
0 files changed, 0 insertions, 0 deletions