Commit 980dfb0d authored Aug 01, 2008 by zhangxiliang Committed by Al Viro Aug 01, 2008

[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>

parent 036bbf76

kernel/auditsc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -610,7 +610,7 @@ static int audit_filter_rules(struct task_struct *tsk,
		if (!result)
		return 0;
		}
		if (rule->filterkey)
		if (rule->filterkey && ctx)
		ctx->filterkey = kstrdup(rule->filterkey, GFP_ATOMIC);
		switch (rule->action) {
		case AUDIT_NEVER: *state = AUDIT_DISABLED; break;