mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-19 12:54:22 -05:00
59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Keith Mok <keithmok@google.com>
|
|
Date: Mon, 22 Aug 2022 19:44:10 +0000
|
|
Subject: [PATCH] Fix integer overflow when parsing avrc response
|
|
|
|
Convert min_len from 16 bits to 32 bits to avoid
|
|
length checking overflow.
|
|
Also, use calloc instead of malloc for list allocation
|
|
since caller need to clean up string memory in the list items
|
|
|
|
Bug: 242459126
|
|
Test: fuzz_avrc
|
|
Tag: #security
|
|
Ignore-AOSP-First: Security
|
|
Merged-In: I7250509f2b320774926a8b24fd28828c5217d8a4
|
|
Change-Id: I7250509f2b320774926a8b24fd28828c5217d8a4
|
|
(cherry picked from commit a593687d6ad3978f48e2aa7be57d8239acdfa501)
|
|
Merged-In: I7250509f2b320774926a8b24fd28828c5217d8a4
|
|
---
|
|
stack/avdt/avdt_scb_act.c | 2 +-
|
|
stack/avrc/avrc_pars_ct.c | 4 ++--
|
|
2 files changed, 3 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/stack/avdt/avdt_scb_act.c b/stack/avdt/avdt_scb_act.c
|
|
index d7cf791cc..f61abd626 100644
|
|
--- a/stack/avdt/avdt_scb_act.c
|
|
+++ b/stack/avdt/avdt_scb_act.c
|
|
@@ -363,7 +363,7 @@ UINT8 * avdt_scb_hdl_report(tAVDT_SCB *p_scb, UINT8 *p, UINT16 len)
|
|
UINT8 *p_start = p;
|
|
UINT32 ssrc;
|
|
UINT8 o_v, o_p, o_cc;
|
|
- UINT16 min_len = 0;
|
|
+ UINT32 min_len = 0;
|
|
AVDT_REPORT_TYPE pt;
|
|
tAVDT_REPORT_DATA report, *p_rpt;
|
|
|
|
diff --git a/stack/avrc/avrc_pars_ct.c b/stack/avrc/avrc_pars_ct.c
|
|
index fc94424ba..b43fd5f55 100644
|
|
--- a/stack/avrc/avrc_pars_ct.c
|
|
+++ b/stack/avrc/avrc_pars_ct.c
|
|
@@ -148,7 +148,7 @@ static tAVRC_STS avrc_pars_vendor_rsp(tAVRC_MSG_VENDOR *p_msg, tAVRC_RESPONSE *p
|
|
|
|
tAVRC_STS avrc_parse_notification_rsp(UINT8* p_stream, UINT16 len,
|
|
tAVRC_REG_NOTIF_RSP* p_rsp) {
|
|
- UINT16 min_len = 1;
|
|
+ UINT32 min_len = 1;
|
|
|
|
if (len < min_len) goto length_error;
|
|
BE_STREAM_TO_UINT8(p_rsp->event_id, p_stream);
|
|
@@ -241,7 +241,7 @@ static tAVRC_STS avrc_ctrl_pars_vendor_rsp(
|
|
p++; /* skip the reserved/packe_type byte */
|
|
|
|
UINT16 len;
|
|
- UINT16 min_len = 0;
|
|
+ UINT32 min_len = 0;
|
|
BE_STREAM_TO_UINT16 (len, p);
|
|
AVRC_TRACE_DEBUG("%s ctype:0x%x pdu:0x%x, len:%d vendor_len=0x%x", __func__,
|
|
p_msg->hdr.ctype, p_result->pdu, len, p_msg->vendor_len);
|