tree 29588786a2274c0b4a3099eead1b6c5f5942c351
parent d5001cf787ad0514839a81d0f2e771e01e076e21
author Markus Armbruster <armbru@redhat.com> 1393000989 +0100
committer Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1393397647 +0530

fsdev: Fix overrun after readlink() fills buffer completely

readlink() returns the number of bytes written to the buffer, and it
doesn't write a terminating null byte.  do_readlink() writes it
itself.  Overruns the buffer when readlink() filled it completely.

Fix by reserving space for the null byte when calling readlink(), like
we do elsewhere.

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