From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Howard Chung <howardchung@google.com>,
Marcel Holtmann <marcel@holtmann.org>,
Sasha Levin <sashal@kernel.org>,
linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.6 030/149] Bluetooth: L2CAP: handle l2cap config request during open state
Date: Sat, 11 Apr 2020 19:01:47 -0400 [thread overview]
Message-ID: <20200411230347.22371-30-sashal@kernel.org> (raw)
In-Reply-To: <20200411230347.22371-1-sashal@kernel.org>
From: Howard Chung <howardchung@google.com>
[ Upstream commit 96298f640104e4cd9a913a6e50b0b981829b94ff ]
According to Core Spec Version 5.2 | Vol 3, Part A 6.1.5,
the incoming L2CAP_ConfigReq should be handled during
OPEN state.
The section below shows the btmon trace when running
L2CAP/COS/CFD/BV-12-C before and after this change.
=== Before ===
...
> ACL Data RX: Handle 256 flags 0x02 dlen 12 #22
L2CAP: Connection Request (0x02) ident 2 len 4
PSM: 1 (0x0001)
Source CID: 65
< ACL Data TX: Handle 256 flags 0x00 dlen 16 #23
L2CAP: Connection Response (0x03) ident 2 len 8
Destination CID: 64
Source CID: 65
Result: Connection successful (0x0000)
Status: No further information available (0x0000)
< ACL Data TX: Handle 256 flags 0x00 dlen 12 #24
L2CAP: Configure Request (0x04) ident 2 len 4
Destination CID: 65
Flags: 0x0000
> HCI Event: Number of Completed Packets (0x13) plen 5 #25
Num handles: 1
Handle: 256
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #26
Num handles: 1
Handle: 256
Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 16 #27
L2CAP: Configure Request (0x04) ident 3 len 8
Destination CID: 64
Flags: 0x0000
Option: Unknown (0x10) [hint]
01 00 ..
< ACL Data TX: Handle 256 flags 0x00 dlen 18 #28
L2CAP: Configure Response (0x05) ident 3 len 10
Source CID: 65
Flags: 0x0000
Result: Success (0x0000)
Option: Maximum Transmission Unit (0x01) [mandatory]
MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5 #29
Num handles: 1
Handle: 256
Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 14 #30
L2CAP: Configure Response (0x05) ident 2 len 6
Source CID: 64
Flags: 0x0000
Result: Success (0x0000)
> ACL Data RX: Handle 256 flags 0x02 dlen 20 #31
L2CAP: Configure Request (0x04) ident 3 len 12
Destination CID: 64
Flags: 0x0000
Option: Unknown (0x10) [hint]
01 00 91 02 11 11 ......
< ACL Data TX: Handle 256 flags 0x00 dlen 14 #32
L2CAP: Command Reject (0x01) ident 3 len 6
Reason: Invalid CID in request (0x0002)
Destination CID: 64
Source CID: 65
> HCI Event: Number of Completed Packets (0x13) plen 5 #33
Num handles: 1
Handle: 256
Count: 1
...
=== After ===
...
> ACL Data RX: Handle 256 flags 0x02 dlen 12 #22
L2CAP: Connection Request (0x02) ident 2 len 4
PSM: 1 (0x0001)
Source CID: 65
< ACL Data TX: Handle 256 flags 0x00 dlen 16 #23
L2CAP: Connection Response (0x03) ident 2 len 8
Destination CID: 64
Source CID: 65
Result: Connection successful (0x0000)
Status: No further information available (0x0000)
< ACL Data TX: Handle 256 flags 0x00 dlen 12 #24
L2CAP: Configure Request (0x04) ident 2 len 4
Destination CID: 65
Flags: 0x0000
> HCI Event: Number of Completed Packets (0x13) plen 5 #25
Num handles: 1
Handle: 256
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #26
Num handles: 1
Handle: 256
Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 16 #27
L2CAP: Configure Request (0x04) ident 3 len 8
Destination CID: 64
Flags: 0x0000
Option: Unknown (0x10) [hint]
01 00 ..
< ACL Data TX: Handle 256 flags 0x00 dlen 18 #28
L2CAP: Configure Response (0x05) ident 3 len 10
Source CID: 65
Flags: 0x0000
Result: Success (0x0000)
Option: Maximum Transmission Unit (0x01) [mandatory]
MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5 #29
Num handles: 1
Handle: 256
Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 14 #30
L2CAP: Configure Response (0x05) ident 2 len 6
Source CID: 64
Flags: 0x0000
Result: Success (0x0000)
> ACL Data RX: Handle 256 flags 0x02 dlen 20 #31
L2CAP: Configure Request (0x04) ident 3 len 12
Destination CID: 64
Flags: 0x0000
Option: Unknown (0x10) [hint]
01 00 91 02 11 11 .....
< ACL Data TX: Handle 256 flags 0x00 dlen 18 #32
L2CAP: Configure Response (0x05) ident 3 len 10
Source CID: 65
Flags: 0x0000
Result: Success (0x0000)
Option: Maximum Transmission Unit (0x01) [mandatory]
MTU: 672
< ACL Data TX: Handle 256 flags 0x00 dlen 12 #33
L2CAP: Configure Request (0x04) ident 3 len 4
Destination CID: 65
Flags: 0x0000
> HCI Event: Number of Completed Packets (0x13) plen 5 #34
Num handles: 1
Handle: 256
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #35
Num handles: 1
Handle: 256
Count: 1
...
Signed-off-by: Howard Chung <howardchung@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/l2cap_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 195459a1e53ef..4e3ce6273973b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4181,7 +4181,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
return 0;
}
- if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
+ if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2 &&
+ chan->state != BT_CONNECTED) {
cmd_reject_invalid_cid(conn, cmd->ident, chan->scid,
chan->dcid);
goto unlock;
--
2.20.1
next prev parent reply other threads:[~2020-04-11 23:49 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-11 23:01 [PATCH AUTOSEL 5.6 001/149] net: hns3: drop the WQ_MEM_RECLAIM flag when allocating WQ Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 002/149] net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 003/149] netfilter: ctnetlink: be more strict when NF_CONNTRACK_MARK is not set Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 004/149] net: axienet: Convert DMA error handler to a work queue Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 005/149] net: phy: probe PHY drivers synchronously Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 011/149] ionic: check for NULL structs on teardown Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 012/149] net: phy: mscc: accept all RGMII species in vsc85xx_mac_if_set Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 017/149] ath11k: Adding proper validation before accessing tx_stats Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 022/149] selftests/bpf: Fix test_progs's parsing of test numbers Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 024/149] net/mlx5: E-Switch, Hold mutex when querying drop counter in legacy mode Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 025/149] libbpf: Ignore incompatible types with matching name during CO-RE relocation Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 028/149] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 029/149] mwifiex: set needed_headroom, not hard_header_len Sasha Levin
2020-04-11 23:01 ` Sasha Levin [this message]
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 032/149] ath10k: fix not registering airtime of 11a station with WMM disable Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 034/149] net: phylink: Add missing Backplane speeds Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 035/149] net/mlx5e: Init ethtool steering for representors Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 037/149] Bluetooth: Fix calculation of SCO handle for packet processing Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 038/149] net: rmnet: add missing module alias Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 041/149] Bluetooth: guard against controllers sending zero'd events Sasha Levin
2020-04-11 23:01 ` [PATCH AUTOSEL 5.6 042/149] libbpf: Fix handling of optional field_name in btf_dump__emit_type_decl Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 050/149] net: hns3: modify an unsuitable print when setting unknown duplex to fibre Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 052/149] net: intel: e1000e: fix possible sleep-in-atomic-context bugs in e1000e_get_hw_semaphore() Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 053/149] net: dsa: bcm_sf2: Also configure Port 5 for 2Gb/sec on 7278 Sasha Levin
2020-04-12 1:16 ` Florian Fainelli
2020-04-17 17:06 ` Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 054/149] sh_eth: check sh_eth_cpu_data::no_tx_cntrs when dumping registers Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 055/149] sh_eth: check sh_eth_cpu_data::cexcr " Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 056/149] sh_eth: check sh_eth_cpu_data::no_xdfar " Sasha Levin
2020-04-12 9:30 ` Sergei Shtylyov
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 057/149] ice: Fix implicit queue mapping mode in ice_vsi_get_qs Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 058/149] ice: Add helper to determine if VF link is up Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 060/149] mt76: mt7615: disable 5 GHz on MT7622 Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 061/149] mt76: fix handling full tx queues in mt76_dma_tx_queue_skb_raw Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 062/149] rtw88: Fix incorrect beamformee role setting Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 067/149] rtw88: 8822c: update power sequence to v16 Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 078/149] ath11k: fix warn-on in disassociation Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 079/149] ath11k: Fixing dangling pointer issue upon peer delete failure Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 080/149] rsi: fix null pointer dereference during rsi_shutdown() Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 084/149] mt76: mt7603: fix input validation issues for powersave-filtered frames Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 096/149] Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl Sasha Levin
2020-04-11 23:02 ` [PATCH AUTOSEL 5.6 098/149] ath10k: start recovery process when read int status fail for sdio Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 110/149] net: axienet: Propagate failure of DMA descriptor setup Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 111/149] brcmfmac: Fix driver crash on USB control transfer timeout Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 112/149] brcmfmac: Fix double freeing in the fmac usb data path Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 113/149] brcmfmac: fix the incorrect return value in brcmf_inform_single_bss() Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 114/149] xfrm: add prep for esp beet mode offload Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 117/149] netfilter: nf_tables: silence a RCU-list warning in nft_table_lookup() Sasha Levin
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 147/149] svcrdma: Fix leak of transport addresses Sasha Levin
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