From: Etienne Basset <etienne.basset@numericable.fr>
Date: Tue, 31 Mar 2009 21:54:11 +0000 (+0200)
Subject: security/smack: fix oops when setting a size 0 SMACK64 xattr
X-Git-Tag: v2.6.27.22~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d44563c1619317484982f0e46e246ebc9afe898;p=pandora-kernel.git

security/smack: fix oops when setting a size 0 SMACK64 xattr

upstream commit: 4303154e86597885bc3cbc178a48ccbc8213875f

this patch fix an oops in smack when setting a size 0 SMACK64 xattr eg
attr -S -s SMACK64  -V '' somefile
This oops because smk_import_entry treats a 0 length as SMK_MAXLEN

Signed-off-by: Etienne Basset <etienne.basset@numericable.fr>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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