From bafa316951b14b02b38a4eda4d179472efa4cbd9 Mon Sep 17 00:00:00 2001
From: Sanket Padawe <sanketpadawe@google.com>
Date: Thu, 13 Jul 2017 14:19:28 -0700
Subject: [PATCH] xmm6262: Fix security vulnerability in pre-O rild code.

Remove wrong code for setup_data_call.
Add check for max address for RIL_DIAL.

Bug: 37896655
Test: Manual.
(cherry picked from commit dda24c6557911aa1f4708abbd6b2f20f0e205b9e)

Change-Id: Iea939a369e552ea5a109e7dcc1fa602ac37dc077
---
 ril/xmm6262/libril/ril.cpp | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/ril/xmm6262/libril/ril.cpp b/ril/xmm6262/libril/ril.cpp
index b5c124b..5473c20 100644
--- a/ril/xmm6262/libril/ril.cpp
+++ b/ril/xmm6262/libril/ril.cpp
@@ -3110,11 +3110,11 @@ static void debugCallback (int fd, short flags, void *param) {
     int data;
     unsigned int qxdm_data[6];
     const char *deactData[1] = {"1"};
-    char *actData[1];
     RIL_Dial dialData;
     int hangupData[1] = {1};
     int number;
     char **args;
+    int MAX_DIAL_ADDRESS = 128;
 
     acceptFD = accept (fd,  (sockaddr *) &peeraddr, &socklen);
 
@@ -3196,12 +3196,6 @@ static void debugCallback (int fd, short flags, void *param) {
             // Set network selection automatic.
             issueLocalRequest(RIL_REQUEST_SET_NETWORK_SELECTION_AUTOMATIC, NULL, 0);
             break;
-        case 6:
-            RLOGI("Debug port: Setup Data Call, Apn :%s\n", args[1]);
-            actData[0] = args[1];
-            issueLocalRequest(RIL_REQUEST_SETUP_DATA_CALL, &actData,
-                              sizeof(actData));
-            break;
         case 7:
             RLOGI("Debug port: Deactivate Data Call");
             issueLocalRequest(RIL_REQUEST_DEACTIVATE_DATA_CALL, &deactData,
@@ -3210,6 +3204,12 @@ static void debugCallback (int fd, short flags, void *param) {
         case 8:
             RLOGI("Debug port: Dial Call");
             dialData.clir = 0;
+            if (strlen(args[1]) > MAX_DIAL_ADDRESS) {
+                RLOGE("Debug port: Error calling Dial");
+                freeDebugCallbackArgs(number, args);
+                close(acceptFD);
+                return;
+            }
             dialData.address = args[1];
             issueLocalRequest(RIL_REQUEST_DIAL, &dialData, sizeof(dialData));
             break;
-- 
2.20.1