DivestOS/Patches/LineageOS-17.1/android_system_bt/378068.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hui Peng <phui@google.com>
Date: Tue, 12 Sep 2023 23:47:48 +0000
Subject: [PATCH] Reject access to secure service authenticated from a temp
 bonding [3]

Allow access to rfcomm PSM by default

Original bug
Bug: 294854926

Nearby regressions:
Bug: 298539299

Test: m com.android.btservices
Ignore-AOSP-First: security
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:ab986fe4165aae74c5915f57ad2e78bf80f1d3ec)
Merged-In: If1f7c9278a9e877f64ae78b6f067c597fb5d0e66
Change-Id: If1f7c9278a9e877f64ae78b6f067c597fb5d0e66
---
 stack/btm/btm_sec.cc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/stack/btm/btm_sec.cc b/stack/btm/btm_sec.cc
index 6163c3fb7..e69fe9b4c 100644
--- a/stack/btm/btm_sec.cc
+++ b/stack/btm/btm_sec.cc
@@ -2119,15 +2119,15 @@ tBTM_STATUS btm_sec_l2cap_access_req(const RawAddress& bd_addr, uint16_t psm,
       btm_cb.security_mode == BTM_SEC_MODE_SC) {
     if (BTM_SEC_IS_SM4(p_dev_rec->sm4)) {
       if (is_originator) {
-        /* SM4 to SM4 -> always authenticate & encrypt */
-        security_required |= (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT);
+        /* SM4 to SM4 -> always encrypt */
+        security_required |= BTM_SEC_OUT_ENCRYPT;
       } else /* acceptor */
       {
         /* SM4 to SM4: the acceptor needs to make sure the authentication is
          * already done */
         chk_acp_auth_done = true;
-        /* SM4 to SM4 -> always authenticate & encrypt */
-        security_required |= (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT);
+        /* SM4 to SM4 -> always encrypt */
+        security_required |= BTM_SEC_IN_ENCRYPT;
       }
     } else if (!(BTM_SM4_KNOWN & p_dev_rec->sm4)) {
       /* the remote features are not known yet */