linux-kernel - [PATCH 4.1 178/267] ima: fix ima_show_template_data

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Message-Id: <20150731194007.998142032@linuxfoundation.org>
Date:	Fri, 31 Jul 2015 12:40:29 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	Roberto Sassu <rsassu@...e.de>
Subject: [PATCH 4.1 178/267] ima: fix ima_show_template_data_ascii()

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

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

From: Mimi Zohar <zohar@...ux.vnet.ibm.com>

commit 45b26133b97871896b8c5241d59f4ff7839db7b2 upstream.

This patch fixes a bug introduced in "4d7aeee ima: define new template
ima-ng and template fields d-ng and n-ng".

Changelog:
- change int to uint32 (Roberto Sassu's suggestion)

Signed-off-by: Mimi Zohar <zohar@...ux.vnet.ibm.com>
Signed-off-by: Roberto Sassu <rsassu@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 security/integrity/ima/ima.h              |    2 +-
 security/integrity/ima/ima_fs.c           |    4 ++--
 security/integrity/ima/ima_template_lib.c |    3 ++-
 3 files changed, 5 insertions(+), 4 deletions(-)

--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -106,7 +106,7 @@ void ima_add_violation(struct file *file
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
 void ima_putc(struct seq_file *m, void *data, int datalen);
-void ima_print_digest(struct seq_file *m, u8 *digest, int size);
+void ima_print_digest(struct seq_file *m, u8 *digest, u32 size);
 struct ima_template_desc *ima_template_desc_current(void);
 int ima_init_template(void);
 
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -190,9 +190,9 @@ static const struct file_operations ima_
 	.release = seq_release,
 };
 
-void ima_print_digest(struct seq_file *m, u8 *digest, int size)
+void ima_print_digest(struct seq_file *m, u8 *digest, u32 size)
 {
-	int i;
+	u32 i;
 
 	for (i = 0; i < size; i++)
 		seq_printf(m, "%02x", *(digest + i));
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -70,7 +70,8 @@ static void ima_show_template_data_ascii
 					 enum data_formats datafmt,
 					 struct ima_field_data *field_data)
 {
-	u8 *buf_ptr = field_data->data, buflen = field_data->len;
+	u8 *buf_ptr = field_data->data;
+	u32 buflen = field_data->len;
 
 	switch (datafmt) {
 	case DATA_FMT_DIGEST_WITH_ALGO:


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