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.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/stack/smp/smp_act.cc b/stack/smp/smp_act.cc
index 8667cc8fd..f814b9cf1 100644
--- a/stack/smp/smp_act.cc
+++ b/stack/smp/smp_act.cc
@@ -414,6 +414,13 @@ void smp_send_ltk_reply(tSMP_CB* p_cb, tSMP_INT_DATA* p_data) {
  * Description  process security request.
  ******************************************************************************/
 void smp_proc_sec_req(tSMP_CB* p_cb, tSMP_INT_DATA* p_data) {
+  if (smp_command_has_invalid_length(p_cb)) {
+    tSMP_INT_DATA smp_int_data;
+    smp_int_data.status = SMP_INVALID_PARAMETERS;
+    smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &smp_int_data);
+    return;
+  }
+
   tBTM_LE_AUTH_REQ auth_req = *(tBTM_LE_AUTH_REQ*)p_data;
   tBTM_BLE_SEC_REQ_ACT sec_req_act;
   uint8_t reason;