linux-kernel - [PATCH 3.13.y-ckt 095/139] nfsd4: fix xdr4 inclusion of escaped char

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Message-Id: <1422483682-15393-96-git-send-email-kamal@canonical.com>
Date:	Wed, 28 Jan 2015 14:20:38 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Benjamin Coddington <bcodding@...hat.com>,
	"J. Bruce Fields" <bfields@...hat.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13.y-ckt 095/139] nfsd4: fix xdr4 inclusion of escaped char

3.13.11-ckt15 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Benjamin Coddington <bcodding@...hat.com>

commit 5a64e56976f1ba98743e1678c0029a98e9034c81 upstream.

Fix a bug where nfsd4_encode_components_esc() includes the esc_end char as
an additional string encoding.

Signed-off-by: Benjamin Coddington <bcodding@...hat.com>
Fixes: e7a0444aef4a "nfsd: add IPv6 addr escaping to fs_location hosts"
Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 fs/nfsd/nfs4xdr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index ab38bc4..65569f9 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1801,6 +1801,9 @@ static __be32 nfsd4_encode_components_esc(char sep, char *components,
 		}
 		else
 			end++;
+		if (found_esc)
+			end = next;
+
 		str = end;
 	}
 	*pp = p;
-- 
1.9.1

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