tree 7d2059c9570e24c7d742eedfeedf19743d05a744
parent 326be7b484843988afe57566b627fb7a70beac56
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1296306822 +0530
committer Al Viro <viro@zeniv.linux.org.uk> 1300223765 -0400

fs: allow AT_EMPTY_PATH in linkat(), limit that to CAP_DAC_READ_SEARCH

We don't want to allow creation of private hardlinks by different application
using the fd passed to them via SCM_RIGHTS. So limit the null relative name
usage in linkat syscall to CAP_DAC_READ_SEARCH

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>