ofono: patch CVE-2024-7540, CVE-2024-7541, CVE-2024-7542

Cherry-pick commit
https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=29ff6334b492504ace101be748b256e6953d2c2f

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Ross Burton <ross.burton@arm.com>

Author: petermarko

meta/recipes-connectivity/ofono/ofono/CVE-2024-7540_CVE-2024-7541_CVE-2024-7542.patch

@@ -0,0 +1,52 @@
+From 29ff6334b492504ace101be748b256e6953d2c2f Mon Sep 17 00:00:00 2001
+From: "Sicelo A. Mhlongo" <absicsz@gmail.com>
+Date: Tue, 17 Dec 2024 11:31:28 +0200
+Subject: [PATCH] atmodem: sms: ensure buffer is initialized before use
+
+Fixes: CVE-2024-7540
+Fixes: CVE-2024-7541
+Fixes: CVE-2024-7542
+
+CVE: CVE-2024-7540
+CVE: CVE-2024-7541
+CVE: CVE-2024-7542
+Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=29ff6334b492504ace101be748b256e6953d2c2f]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ drivers/atmodem/sms.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/atmodem/sms.c b/drivers/atmodem/sms.c
+index d994856b..0668c631 100644
+--- a/drivers/atmodem/sms.c
++++ b/drivers/atmodem/sms.c
+@@ -399,7 +399,7 @@ static void at_cmt_notify(GAtResult *result, gpointer user_data)
+ 	struct sms_data *data = ofono_sms_get_data(sms);
+ 	GAtResultIter iter;
+ 	const char *hexpdu;
+-	unsigned char pdu[176];
++	unsigned char pdu[176] = {0};
+ 	long pdu_len;
+ 	int tpdu_len;
+ 
+@@ -466,7 +466,7 @@ static void at_cmgr_notify(GAtResult *result, gpointer user_data)
+ 	struct sms_data *data = ofono_sms_get_data(sms);
+ 	GAtResultIter iter;
+ 	const char *hexpdu;
+-	unsigned char pdu[176];
++	unsigned char pdu[176] = {0};
+ 	long pdu_len;
+ 	int tpdu_len;
+ 
+@@ -648,7 +648,7 @@ static void at_cmgl_notify(GAtResult *result, gpointer user_data)
+ 	struct sms_data *data = ofono_sms_get_data(sms);
+ 	GAtResultIter iter;
+ 	const char *hexpdu;
+-	unsigned char pdu[176];
++	unsigned char pdu[176] = {0};
+ 	long pdu_len;
+ 	int tpdu_len;
+ 	int index;
+-- 
+2.30.2
+

meta/recipes-connectivity/ofono/ofono_2.14.bb

@@ -12,6 +12,7 @@ SRC_URI = "\
     file://rmnet.patch \
     file://ofono \
     file://CVE-2024-7539.patch \
+    file://CVE-2024-7540_CVE-2024-7541_CVE-2024-7542.patch \
 "
 SRC_URI[sha256sum] = "983cbfd5e1e1a410ba7ad2db7f50fadc91e50b29f1ede40cdc73f941da7ba95f"