On 01/07/2013 08:29 PM, Alice Chu wrote:
Hello,
Attached you will find the Klocwork report on seandroid master branch
external/checkpolicy. The following is the fix for issues found in
policy_define.c.
Please review and give me your feedback.
Thank you very much,
Alice Chu
============================================================================
From 18555451c5831fd95044e665d3dc514eb69e3b75 Mon Sep 17 00:00:00 2001
From: Alice Chu <[email protected]>
Date: Mon, 7 Jan 2013 15:29:29 -0800
Subject: [PATCH] Fix issues found by Klocwork
Change-Id: Ic3a01364b6855529f6b58a8820c6011a22c21841
---
policy_define.c | 24 +++++++++++++++++++-----
1 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/policy_define.c b/policy_define.c
index 2c12447..504af69 100644
--- a/policy_define.c
+++ b/policy_define.c
@@ -3583,6 +3591,11 @@ static int parse_security_context(context_struct_t * c)
}
context_init(c);
+ /* check context c to make sure ok to dereference c later */
+ if (c == NULL) {
+ yyerror("null context pointer!");
+ goto bad;
+ }
/* extract the user */
id = queue_remove(id_queue);
I think you want this check before context_init(), as it dereferences c.
And then just return -1 in the error path.
This btw is an illegal state as NULL should only be passed if pass == 1.
--
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