tree d345805a52a70a88485037122e577f1edebc9441
parent b28a960c42fcd9cfc987441fa6d1c1a471f0f9ed
author J. Bruce Fields <bfields@redhat.com> 1392136145 -0500
committer J. Bruce Fields <bfields@redhat.com> 1392144491 -0500

nfsd4: fix acl buffer overrun

4ac7249ea5a0ceef9f8269f63f33cc873c3fac61 "nfsd: use get_acl and
->set_acl" forgets to set the size in the case get_acl() succeeds, so
_posix_to_nfsv4_one() can then write past the end of its allocation.
Symptoms were slab corruption warnings.

Also, some minor cleanup while we're here.  (Among other things, note
that the first few lines guarantee that pacl is non-NULL.)

Signed-off-by: J. Bruce Fields <bfields@redhat.com>