From: Jeff Layton <jlayton@redhat.com>
Date: Fri, 24 May 2013 11:40:04 +0000 (-0400)
Subject: cifs: fix potential buffer overrun when composing a new options string
X-Git-Tag: v3.2.47~79
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a762b7f53a5e6bd6f6568b904ffcf2fd1811ef5;p=pandora-kernel.git

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

commit 166faf21bd14bc5c5295a44874bf7f3930c30b20 upstream.

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.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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