linux-kernel - [PATCH 4.4 56/56] PKCS#7: fix unitialized boolean want

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Date:   Mon, 13 Nov 2017 13:56:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Colin Ian King <colin.king@...onical.com>,
        David Howells <dhowells@...hat.com>,
        Ben Hutchings <ben.hutchings@...ethink.co.uk>
Subject: [PATCH 4.4 56/56] PKCS#7: fix unitialized boolean want

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

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

From: Colin Ian King <colin.king@...onical.com>

commit 06aae592425701851e02bb850cb9f4997f0ae163 upstream.

The boolean want is not initialized and hence garbage. The default should
be false (later it is only set to true on tne sinfo->authattrs check).

Found with static analysis using CoverityScan

Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: David Howells <dhowells@...hat.com>
Cc: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 crypto/asymmetric_keys/pkcs7_parser.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -87,7 +87,7 @@ EXPORT_SYMBOL_GPL(pkcs7_free_message);
 static int pkcs7_check_authattrs(struct pkcs7_message *msg)
 {
 	struct pkcs7_signed_info *sinfo;
-	bool want;
+	bool want = false;
 
 	sinfo = msg->signed_infos;
 	if (!sinfo)