mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-10-01 01:35:54 -04:00
33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: William Escande <wescande@google.com>
|
|
Date: Mon, 2 May 2022 09:48:59 -0700
|
|
Subject: [PATCH] Check Avrcp packet vendor length before extracting length
|
|
|
|
Bug: 205571133
|
|
Test: build + ag/18105403 for sts test
|
|
Ignore-AOSP-First: Security vulnerability
|
|
Change-Id: Ic9fa9400ab15785cfdb251af66b1867daf09570e
|
|
(cherry picked from commit 003e42896493afb7a0cd7406720987725d4e9da3)
|
|
Merged-In: Ic9fa9400ab15785cfdb251af66b1867daf09570e
|
|
---
|
|
stack/avrc/avrc_pars_tg.cc | 6 ++++++
|
|
1 file changed, 6 insertions(+)
|
|
|
|
diff --git a/stack/avrc/avrc_pars_tg.cc b/stack/avrc/avrc_pars_tg.cc
|
|
index 88b8d0083..7042f4da7 100644
|
|
--- a/stack/avrc/avrc_pars_tg.cc
|
|
+++ b/stack/avrc/avrc_pars_tg.cc
|
|
@@ -44,6 +44,12 @@ static tAVRC_STS avrc_ctrl_pars_vendor_cmd(tAVRC_MSG_VENDOR* p_msg,
|
|
tAVRC_COMMAND* p_result) {
|
|
tAVRC_STS status = AVRC_STS_NO_ERROR;
|
|
|
|
+ if (p_msg->vendor_len < 4) { // 4 == pdu + reserved byte + len as uint16
|
|
+ AVRC_TRACE_WARNING("%s: message length %d too short: must be at least 4",
|
|
+ __func__, p_msg->vendor_len);
|
|
+ android_errorWriteLog(0x534e4554, "205571133");
|
|
+ return AVRC_STS_INTERNAL_ERR;
|
|
+ }
|
|
uint8_t* p = p_msg->p_vendor_data;
|
|
p_result->pdu = *p++;
|
|
AVRC_TRACE_DEBUG("%s pdu:0x%x", __func__, p_result->pdu);
|