DivestOS/Patches/LineageOS-14.1/android_system_bt/376462.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.
CRs-Fixed: 3507292
Change-Id: I15a1eae59b17f633e29180a01676c260189b8353
---
btif/src/bluetooth.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/btif/src/bluetooth.c b/btif/src/bluetooth.c
index b6552e251..121ad7314 100644
--- a/btif/src/bluetooth.c
+++ b/btif/src/bluetooth.c
@@ -346,6 +346,8 @@ static int pin_reply(const bt_bdaddr_t *bd_addr, uint8_t accept,
/* sanity check */
if (interface_ready() == FALSE)
return BT_STATUS_NOT_READY;
+ if (pin_code == NULL || 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);