DivestOS/Patches/LineageOS-17.1/android_system_bt/378073.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: balakrishna <quic_kunthumu@quicinc.com>
Date: Wed, 24 May 2023 13:28:21 +0530
Subject: [PATCH] Fix OOB Write in pin_reply in bluetooth.cc
Root cause:
if the length of "pin_code" is greater than 16,
an OOBW will be triggered due to a missing bounds check.
Fix:
Check is added to avoid Out of Bound Write.
Change-Id: Ie63019ab98e0b1896dcf37f6dcbd61b810477193
---
btif/src/bluetooth.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/btif/src/bluetooth.cc b/btif/src/bluetooth.cc
index b1d0c9a6f..30985ded3 100644
--- a/btif/src/bluetooth.cc
+++ b/btif/src/bluetooth.cc
@@ -292,6 +292,7 @@ static int pin_reply(const RawAddress* bd_addr, uint8_t accept, uint8_t pin_len,
bt_pin_code_t tmp_pin_code;
/* sanity check */
if (!interface_ready()) return BT_STATUS_NOT_READY;
+ if (pin_code == nullptr || pin_len > PIN_CODE_LEN) return BT_STATUS_FAIL;
memcpy(&tmp_pin_code, pin_code, pin_len);
return btif_dm_pin_reply(bd_addr, accept, pin_len, &tmp_pin_code);