DivestOS/Patches/LineageOS-14.1/android_system_bt/343959.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Brian Delwiche <delwiche@google.com>
Date: Fri, 12 Aug 2022 17:26:19 +0000
Subject: [PATCH] Add negative length check in process_service_search_rsp
Bug: 225876506
Test: run supplied POC (updated to Android T)
Tag: #security
Ignore-AOSP-First: Security
Change-Id: I0054806e47ed9d6eb8b034a41c8c872fee7f1eca
(cherry picked from commit 18d69eb958493d4879786e2edb42ff4e60334a2f)
Merged-In: I0054806e47ed9d6eb8b034a41c8c872fee7f1eca
---
stack/sdp/sdp_discovery.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/stack/sdp/sdp_discovery.c b/stack/sdp/sdp_discovery.c
index 6f6fe2b15..ec85da47a 100644
--- a/stack/sdp/sdp_discovery.c
+++ b/stack/sdp/sdp_discovery.c
@@ -309,7 +309,7 @@ static void process_service_search_rsp (tCONN_CB* p_ccb, uint8_t* p_reply,
orig = p_ccb->num_handles;
p_ccb->num_handles += cur_handles;
- if (p_ccb->num_handles == 0)
+ if (p_ccb->num_handles == 0 || p_ccb->num_handles < orig)
{
SDP_TRACE_WARNING ("SDP - Rcvd ServiceSearchRsp, no matches");
sdp_disconnect (p_ccb, SDP_NO_RECS_MATCH);