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