tree 02daebf2e219f1737dcd7fb979d277c519974295
parent 62106e96279f66c52e2123782f9420af9dbe8cbe
author Jeff Layton <jlayton@redhat.com> 1369395604 -0400
committer Steve French <sfrench@us.ibm.com> 1369418899 -0500

cifs: fix potential buffer overrun when composing a new options string

Consider the case where we have a very short ip= string in the original
mount options, and when we chase a referral we end up with a very long
IPv6 address. Be sure to allow for that possibility when estimating the
size of the string to allocate.

Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>