File core-Fix-wrong-expectations-for-the-return-of-r... of Package bluez.30319

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File core-Fix-wrong-expectations-for-the-return-of-recv.patch of Package bluez.30319

From 7641fc83a9a790b761b0c14852156a6651b7fc34 Mon Sep 17 00:00:00 2001
From: Vinicius Costa Gomes <vcgomes@gmail.com>
Date: Wed, 10 Aug 2016 19:14:28 -0300
Subject: [PATCH] core: Fix wrong expectations for the return of recv()

Since commit b5f34f9420b50 "Bluetooth: Fix bt_sock_recvmsg return value"
in the kernel, Bluetooth sockets of type SOCK_SEQPACKET, when read()
will return the size of the packet received, which can be larger than
the the buffer passed by user space.

In this case the problem was causing a disconnection soon after
the reception of an SDP request.

Reported by: Alban Browaeys <prahal@yahoo.com>
---
 src/sdpd-server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: bluez-5.13/src/sdpd-server.c
===================================================================
--- bluez-5.13.orig/src/sdpd-server.c
+++ bluez-5.13/src/sdpd-server.c
@@ -165,7 +165,7 @@ static gboolean io_session_event(GIOChan
 	}
 
 	len = recv(sk, &hdr, sizeof(sdp_pdu_hdr_t), MSG_PEEK);
-	if (len != sizeof(sdp_pdu_hdr_t)) {
+	if (len < 0 || (unsigned int) len < sizeof(sdp_pdu_hdr_t)) {
 		sdp_svcdb_collect_all(sk);
 		return FALSE;
 	}

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File core-Fix-wrong-expectations-for-the-return-of-recv.patch of Package bluez.30319

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