From 980dfb0db340b95094732d78b55311f2c539c1af Mon Sep 17 00:00:00 2001
From: zhangxiliang <zhangxiliang@cn.fujitsu.com>
Date: Fri, 1 Aug 2008 19:15:47 +0800
Subject: [PATCH] [PATCH] Fix the kernel panic of audit_filter_task when key
 field is set

When calling audit_filter_task(), it calls audit_filter_rules() with audit_context is NULL.
If the key field is set, the result in audit_filter_rules() will be set to 1 and
ctx->filterkey will be set to key.
But the ctx is NULL in this condition, so kernel will panic.

Signed-off-by: Zhang Xiliang <zhangxiliang@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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