From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hui Peng <phui@google.com>
Date: Tue, 28 Nov 2023 19:57:20 +0000
Subject: [PATCH] Fix an OOB bug in smp_proc_sec_req

This is a backport of I400cfa3523c6d8b25c233205748c2db5dc803d1d

Bug: 300903400
Test: m com.android.btservices
Ignore-AOSP-First: security
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:970c95d7c06c909c34a849587f701098129fc2ef)
Merged-In: Id4c65801ff8519aff18b24007e344934493cab55
Change-Id: Id4c65801ff8519aff18b24007e344934493cab55
---
 stack/smp/smp_act.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/stack/smp/smp_act.c b/stack/smp/smp_act.c
index 675a99600..7491d0972 100644
--- a/stack/smp/smp_act.c
+++ b/stack/smp/smp_act.c
@@ -481,9 +481,17 @@ void smp_send_ltk_reply(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
 *******************************************************************************/
 void smp_proc_sec_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
 {
+    UINT8 reason;
+
+    if (smp_command_has_invalid_length(p_cb))
+    {
+        reason = SMP_INVALID_PARAMETERS;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
     tBTM_LE_AUTH_REQ auth_req = *(tBTM_LE_AUTH_REQ *)p_data;
     tBTM_BLE_SEC_REQ_ACT sec_req_act;
-    UINT8 reason;
 
     SMP_TRACE_DEBUG("%s auth_req=0x%x", __func__, auth_req);
 
