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082bc48c32
https://review.lineageos.org/q/topic:P_asb_2022-05 https://review.lineageos.org/q/topic:P_asb_2022-06 https://review.lineageos.org/q/topic:P_asb_2022-07 https://review.lineageos.org/q/topic:P_asb_2022-08 https://review.lineageos.org/q/topic:P_asb_2022-09 https://review.lineageos.org/q/topic:P_asb_2022-10 https://review.lineageos.org/q/topic:P_asb_2022-11 https://review.lineageos.org/q/topic:P_asb_2022-12 https://review.lineageos.org/q/topic:P_asb_2023-01 https://review.lineageos.org/q/topic:P_asb_2023-02 https://review.lineageos.org/q/topic:P_asb_2023-03 https://review.lineageos.org/q/topic:P_asb_2023-04 https://review.lineageos.org/q/topic:P_asb_2023-05 https://review.lineageos.org/q/topic:P_asb_2023-06 https://review.lineageos.org/q/topic:P_asb_2023-07 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/361250 https://review.lineageos.org/q/topic:P_asb_2023-08 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/364606 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/365328 https://review.lineageos.org/q/topic:P_asb_2023-09 https://review.lineageos.org/q/topic:P_asb_2023-10 https://review.lineageos.org/q/topic:P_asb_2023-11 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/374916 https://review.lineageos.org/q/topic:P_asb_2023-12 https://review.lineageos.org/q/topic:P_asb_2024-01 https://review.lineageos.org/q/topic:P_asb_2024-02 https://review.lineageos.org/q/topic:P_asb_2024-03 https://review.lineageos.org/q/topic:P_asb_2024-04 Signed-off-by: Tavi <tavi@divested.dev>
43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Brian Delwiche <delwiche@google.com>
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Date: Thu, 25 Aug 2022 18:52:28 +0000
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Subject: [PATCH] RESTRICT AUTOMERGE Added max buffer length check
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Bug: 230867224
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Test: Manual -- paired Bluetooth headset and played audio
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Tags: #security
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Ignore-AOSP-First: Security
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Change-Id: I740038288143715a1c06db781efd674b269a7f3e
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(cherry picked from commit 769f55450bd2eb94ddb9080f730e404de7716bda)
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Merged-In: I740038288143715a1c06db781efd674b269a7f3e
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---
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stack/avct/avct_lcb_act.cc | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/stack/avct/avct_lcb_act.cc b/stack/avct/avct_lcb_act.cc
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index faa098b80..81ae79d63 100644
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--- a/stack/avct/avct_lcb_act.cc
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+++ b/stack/avct/avct_lcb_act.cc
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@@ -30,6 +30,7 @@
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#include "bt_types.h"
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#include "bt_utils.h"
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#include "btm_api.h"
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+#include "osi/include/log.h"
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#include "osi/include/osi.h"
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/* packet header length lookup table */
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@@ -58,7 +59,12 @@ static BT_HDR* avct_lcb_msg_asmbl(tAVCT_LCB* p_lcb, BT_HDR* p_buf) {
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pkt_type = AVCT_PKT_TYPE(p);
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/* quick sanity check on length */
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- if (p_buf->len < avct_lcb_pkt_type_len[pkt_type]) {
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+ if (p_buf->len < avct_lcb_pkt_type_len[pkt_type] ||
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+ (sizeof(BT_HDR) + p_buf->offset + p_buf->len) > BT_DEFAULT_BUFFER_SIZE) {
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+ if ((sizeof(BT_HDR) + p_buf->offset + p_buf->len) >
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+ BT_DEFAULT_BUFFER_SIZE) {
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+ android_errorWriteWithInfoLog(0x534e4554, "230867224", -1, NULL, 0);
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+ }
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osi_free(p_buf);
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AVCT_TRACE_WARNING("Bad length during reassembly");
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p_ret = NULL;
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