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Message-ID: <9239cf4864abf17bd50ece04ef4c93e9d8aecf8b.camel@iki.fi>
Subject: Re: [PATCH BlueZ v5 3/3] shared/vcp.c: Make VOCS as an included
 service of VCS
From:   Pauli Virtanen <pav@iki.fi>
To:     Nitin Jadhav <nitin.jadhav@nxp.com>,
        linux-bluetooth@vger.kernel.org
Cc:     devyani.godbole@nxp.com, mihai-octavian.urzica@nxp.com,
        silviu.barbulescu@nxp.com
Date:   Tue, 27 Jun 2023 21:59:14 +0300
In-Reply-To: <20230612133251.194-4-nitin.jadhav@nxp.com>
References: <20230612133251.194-1-nitin.jadhav@nxp.com>
         <20230612133251.194-4-nitin.jadhav@nxp.com>
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Hi,

ma, 2023-06-12 kello 19:02 +0530, Nitin Jadhav kirjoitti:
> Fixed the following issue observed during PTS testing
> - Specified Upper and Lower Limit for Volume offset
> - Corrected the number of handles for VOCS
> - VOCS is made as included service of VCS
>   (VOCS is secondary service and VSC is primary service)

I'm seeing a crash on BlueZ master branch
6b9d167034b741605c3186e78e9742dda8e28e08 with this patch, when trying
pair LE Audio TWS earbuds, with ControllerMode=3Dle and experimental
features enabled in config and sound server with BAP support running.
It seems to crash reproducibly here during pairing. Also trying to
connect to previously paired BlueZ<->BlueZ seems to crash.

Reverting commit d2d2d12f59d65002c4a671a5af1837f295181142
("shared/vcp.c: Make VOCS as an included service of VCS") makes it to
not crash any more. Didn't try to look so far into detail if it's
directly related to this patch, but something in VCP might not be quite
right.

Logs:

bluetoothd[38339]: src/device.c:gatt_client_ready_cb() status: success, err=
or: 0
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001800-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001801-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000180a-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000180f-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000180f-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: a7a473e9-19=
c6-491b-aea6-7ea92b8f043a
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000184f-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000184e-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001850-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 0000184d-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001844-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001855-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00008fe1-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001846-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:update_gatt_uuids() UUID Added: 00001853-00=
00-1000-8000-00805f9b34fb
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/gap/gas.c:gap_probe() GAP profile probe (28:3D:=
C2:4A:7D:2A)
bluetoothd[38339]: src/service.c:change_state() 0x6040000409d0: device 28:3=
D:C2:4A:7D:2A profile gap-profile state changed: unavailable -> disconnecte=
d (0)
bluetoothd[38339]: profiles/gap/gas.c:gap_accept() GAP profile accept (28:3=
D:C2:4A:7D:2A)
bluetoothd[38339]: profiles/gap/gas.c:handle_characteristic() Unsupported c=
haracteristic: 00002aa6-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: src/service.c:change_state() 0x6040000409d0: device 28:3=
D:C2:4A:7D:2A profile gap-profile state changed: disconnected -> connected =
(0)
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/service.c:change_state() 0x604000040cd0: device 28:3=
D:C2:4A:7D:2A profile deviceinfo state changed: unavailable -> disconnected=
 (0)
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:deviceinfo_accept() dev=
iceinfo profile accept (28:3D:C2:4A:7D:2A)
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a29-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a24-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a25-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a27-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a26-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a28-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a23-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: profiles/deviceinfo/deviceinfo.c:handle_characteristic()=
 Unsupported characteristic: 00002a2a-0000-1000-8000-00805f9b34fb
bluetoothd[38339]: src/service.c:change_state() 0x604000040cd0: device 28:3=
D:C2:4A:7D:2A profile deviceinfo state changed: disconnected -> connected (=
0)
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/battery/battery.c:batt_probe() BATT profile pro=
be (28:3D:C2:4A:7D:2A)
bluetoothd[38339]: src/service.c:change_state() 0x604000040e50: device 28:3=
D:C2:4A:7D:2A profile batt-profile state changed: unavailable -> disconnect=
ed (0)
bluetoothd[38339]: profiles/battery/battery.c:batt_accept() BATT profile ac=
cept (28:3D:C2:4A:7D:2A)
bluetoothd[38339]: profiles/battery/battery.c:foreach_batt_service() More t=
han one BATT service exists for this device
bluetoothd[38339]: src/service.c:change_state() 0x604000040e50: device 28:3=
D:C2:4A:7D:2A profile batt-profile state changed: disconnected -> connected=
 (0)
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/bass.c:bass_probe() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/gatt-database.c:gatt_db_service_added() GATT Service=
 added to local database
bluetoothd[38339]: src/gatt-database.c:send_notification_to_device() GATT s=
erver sending indication
bluetoothd[38339]: src/gatt-database.c:db_hash_read_cb() Database Hash read
bluetoothd[38339]: profiles/audio/bass.c:bass_data_add() data 0x603000087b2=
0
bluetoothd[38339]: src/service.c:change_state() 0x6040000410d0: device 28:3=
D:C2:4A:7D:2A profile bass state changed: unavailable -> disconnected (0)
bluetoothd[38339]: profiles/audio/bass.c:bass_accept() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/shared/bass.c:foreach_bass_char() Broadcast Audio Sc=
an Control Point found: handle 0x003d
bluetoothd[38339]: src/shared/bass.c:foreach_bass_char() Broadcast Receive =
State found: handle 0x003f
bluetoothd[38339]: src/service.c:change_state() 0x6040000410d0: device 28:3=
D:C2:4A:7D:2A profile bass state changed: disconnected -> connected (0)
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/bap.c:bap_probe() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/bap.c:bap_data_add() data 0x60b000022fe0
bluetoothd[38339]: src/service.c:change_state() 0x604000042b10: device 28:3=
D:C2:4A:7D:2A profile bap state changed: unavailable -> disconnected (0)
bluetoothd[38339]: profiles/audio/bap.c:bap_accept() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/bap.c:bap_attached() 0x60e0000043a0
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() PAC Context found: =
handle 0x0050
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() PAC Supported Conte=
xt found: handle 0x0053
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() Sink PAC Location f=
ound: handle 0x0056
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() Sink PAC found: han=
dle 0x0059
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() Source PAC Location=
 found: handle 0x005c
bluetoothd[38339]: src/shared/bap.c:foreach_pacs_char() Source PAC found: h=
andle 0x005f
bluetoothd[38339]: src/shared/bap.c:foreach_ascs_char() ASE Control Point f=
ound: handle 0x0043
bluetoothd[38339]: src/shared/bap.c:bap_cp_attach() ASE CP handle 0x0043
bluetoothd[38339]: src/shared/bap.c:foreach_ascs_char() ASE Sink found: han=
dle 0x0046
bluetoothd[38339]: src/shared/bap.c:bap_endpoint_attach() ASE handle 0x0046
bluetoothd[38339]: src/shared/bap.c:foreach_ascs_char() ASE Sink found: han=
dle 0x0049
bluetoothd[38339]: src/shared/bap.c:bap_endpoint_attach() ASE handle 0x0049
bluetoothd[38339]: src/shared/bap.c:foreach_ascs_char() ASE Source found: h=
andle 0x004c
bluetoothd[38339]: src/shared/bap.c:bap_endpoint_attach() ASE handle 0x004c
bluetoothd[38339]: src/service.c:change_state() 0x604000042b10: device 28:3=
D:C2:4A:7D:2A profile bap state changed: disconnected -> connected (0)
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/device.c:device_probe_profiles() Probing profiles fo=
r device 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/vcp.c:vcp_probe() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: profiles/audio/vcp.c:vcp_data_add() data 0x60300008ab20
bluetoothd[38339]: src/service.c:change_state() 0x6040000432d0: device 28:3=
D:C2:4A:7D:2A profile vcp state changed: unavailable -> disconnected (0)
bluetoothd[38339]: profiles/audio/vcp.c:vcp_accept() 28:3D:C2:4A:7D:2A
bluetoothd[38339]: src/shared/vcp.c:foreach_vcs_char() VCS Vol state found:=
 handle 0x0024
bluetoothd[38339]: src/shared/vcp.c:foreach_vcs_char() VCS Volume CP found:=
 handle 0x0027
bluetoothd[38339]: src/shared/vcp.c:foreach_vcs_char() VCS Vol Flag found: =
handle 0x0029
bluetoothd[38339]: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
bluetoothd[38339]: =3D=3D38339=3D=3DERROR: AddressSanitizer: heap-buffer-ov=
erflow on address 0x60400003db08 at pc 0x0000006368fe bp 0x7ffd259cd910 sp =
0x7ffd259cd908
bluetoothd[38339]: READ of size 8 at 0x60400003db08 thread T0
bluetoothd[38339]:     #0 0x6368fd in gatt_db_attribute_get_char_data src/s=
hared/gatt-db.c:1877
bluetoothd[38339]:     #1 0x6135ac in notify_chrc_create src/shared/gatt-cl=
ient.c:323
bluetoothd[38339]:     #2 0x61b275 in register_notify src/shared/gatt-clien=
t.c:1765
bluetoothd[38339]:     #3 0x624940 in bt_gatt_client_register_notify src/sh=
ared/gatt-client.c:3741
bluetoothd[38339]:     #4 0x66472e in vcp_register_notify src/shared/vcp.c:=
1517
bluetoothd[38339]:     #5 0x664eac in foreach_vcs_char src/shared/vcp.c:158=
6
bluetoothd[38339]:     #6 0x6351a2 in gatt_db_service_foreach src/shared/ga=
tt-db.c:1524
bluetoothd[38339]:     #7 0x635234 in gatt_db_service_foreach_char src/shar=
ed/gatt-db.c:1532
bluetoothd[38339]:     #8 0x665993 in foreach_vcs_service src/shared/vcp.c:=
1686
bluetoothd[38339]:     #9 0x634452 in foreach_service_in_range src/shared/g=
att-db.c:1413
bluetoothd[38339]:     #10 0x6347ba in foreach_in_range src/shared/gatt-db.=
c:1436
bluetoothd[38339]:     #11 0x5f7364 in queue_foreach src/shared/queue.c:207
bluetoothd[38339]:     #12 0x634d75 in gatt_db_foreach_service_in_range src=
/shared/gatt-db.c:1478
bluetoothd[38339]:     #13 0x634198 in gatt_db_foreach_service src/shared/g=
att-db.c:1383
bluetoothd[38339]:     #14 0x665c15 in bt_vcp_attach src/shared/vcp.c:1722
bluetoothd[38339]:     #15 0x4b3ebc in vcp_accept profiles/audio/vcp.c:251
bluetoothd[38339]:     #16 0x561410 in service_accept src/service.c:203
bluetoothd[38339]:     #17 0x58275e in add_gatt_service src/device.c:3979
bluetoothd[38339]:     #18 0x634452 in foreach_service_in_range src/shared/=
gatt-db.c:1413
bluetoothd[38339]:     #19 0x6347ba in foreach_in_range src/shared/gatt-db.=
c:1436
bluetoothd[38339]:     #20 0x5f7364 in queue_foreach src/shared/queue.c:207
bluetoothd[38339]:     #21 0x634d75 in gatt_db_foreach_service_in_range src=
/shared/gatt-db.c:1478
bluetoothd[38339]:     #22 0x634198 in gatt_db_foreach_service src/shared/g=
att-db.c:1383
bluetoothd[38339]:     #23 0x582929 in device_add_gatt_services src/device.=
c:3993
bluetoothd[38339]:     #24 0x58a590 in register_gatt_services src/device.c:=
5368
bluetoothd[38339]:     #25 0x58a6ad in gatt_client_ready_cb src/device.c:53=
86
bluetoothd[38339]:     #26 0x619375 in notify_client_ready src/shared/gatt-=
client.c:1390
bluetoothd[38339]:     #27 0x61cf29 in init_complete src/shared/gatt-client=
.c:2092
bluetoothd[38339]:     #28 0x614439 in discovery_op_complete src/shared/gat=
t-client.c:476
bluetoothd[38339]:     #29 0x619cec in db_hash_read_cb src/shared/gatt-clie=
nt.c:1496
bluetoothd[38339]:     #30 0x673d37 in discovery_op_complete src/shared/gat=
t-helpers.c:615
bluetoothd[38339]:     #31 0x677336 in read_by_type_cb src/shared/gatt-help=
ers.c:1344
bluetoothd[38339]:     #32 0x60d878 in handle_rsp src/shared/att.c:860
bluetoothd[38339]:     #33 0x60e5cd in can_read_data src/shared/att.c:1052
bluetoothd[38339]:     #34 0x66f30e in watch_callback src/shared/io-glib.c:=
157
bluetoothd[38339]:     #35 0x7fdd0af8239b in g_main_context_dispatch (/lib6=
4/libglib-2.0.so.0+0x5c39b) (BuildId: b0e6a618cd46494b058c5f00ce2f1a650b200=
ce3)
bluetoothd[38339]:     #36 0x7fdd0afe0437 in g_main_context_iterate.isra.0 =
(/lib64/libglib-2.0.so.0+0xba437) (BuildId: b0e6a618cd46494b058c5f00ce2f1a6=
50b200ce3)
bluetoothd[38339]:     #37 0x7fdd0af8199e in g_main_loop_run (/lib64/libgli=
b-2.0.so.0+0x5b99e) (BuildId: b0e6a618cd46494b058c5f00ce2f1a650b200ce3)
bluetoothd[38339]:     #38 0x66fd29 in mainloop_run src/shared/mainloop-gli=
b.c:66
bluetoothd[38339]:     #39 0x67077e in mainloop_run_with_signal src/shared/=
mainloop-notify.c:188
bluetoothd[38339]:     #40 0x4da138 in main src/main.c:1450
bluetoothd[38339]:     #41 0x7fdd0a649b49 in __libc_start_call_main (/lib64=
/libc.so.6+0x27b49) (BuildId: 245240a31888ad5c11bbc55b18e02d87388f59a9)
bluetoothd[38339]:     #42 0x7fdd0a649c0a in __libc_start_main_alias_2 (/li=
b64/libc.so.6+0x27c0a) (BuildId: 245240a31888ad5c11bbc55b18e02d87388f59a9)
bluetoothd[38339]:     #43 0x40c974 in _start (/usr/local/stow/bluez-dev/li=
bexec/bluetooth/bluetoothd+0x40c974) (BuildId: 339d83124c60413f66f5c84af62c=
d00e236e7733)
bluetoothd[38339]: 0x60400003db08 is located 8 bytes before 40-byte region =
[0x60400003db10,0x60400003db38)
bluetoothd[38339]: allocated by thread T0 here:
bluetoothd[38339]:     #0 0x7fdd0a8d92ff in malloc (/lib64/libasan.so.8+0xd=
92ff) (BuildId: dc689b05ca2577037af24700212bb5cce1f91c8a)
bluetoothd[38339]:     #1 0x5f86b7 in util_malloc src/shared/util.c:46
bluetoothd[38339]:     #2 0x62fe56 in gatt_db_service_create src/shared/gat=
t-db.c:533
bluetoothd[38339]:     #3 0x631171 in gatt_db_insert_service src/shared/gat=
t-db.c:734
bluetoothd[38339]:     #4 0x61844f in discovery_parse_services src/shared/g=
att-client.c:1205
bluetoothd[38339]:     #5 0x618e8f in discover_primary_cb src/shared/gatt-c=
lient.c:1326
bluetoothd[38339]:     #6 0x673d37 in discovery_op_complete src/shared/gatt=
-helpers.c:615
bluetoothd[38339]:     #7 0x67432e in read_by_grp_type_cb src/shared/gatt-h=
elpers.c:717
bluetoothd[38339]:     #8 0x60d878 in handle_rsp src/shared/att.c:860
bluetoothd[38339]:     #9 0x60e5cd in can_read_data src/shared/att.c:1052
bluetoothd[38339]:     #10 0x66f30e in watch_callback src/shared/io-glib.c:=
157
bluetoothd[38339]:     #11 0x7fdd0af8239b in g_main_context_dispatch (/lib6=
4/libglib-2.0.so.0+0x5c39b) (BuildId: b0e6a618cd46494b058c5f00ce2f1a650b200=
ce3)
bluetoothd[38339]:     #12 0x7fdd0afe0437 in g_main_context_iterate.isra.0 =
(/lib64/libglib-2.0.so.0+0xba437) (BuildId: b0e6a618cd46494b058c5f00ce2f1a6=
50b200ce3)
bluetoothd[38339]:     #13 0x7fdd0af8199e in g_main_loop_run (/lib64/libgli=
b-2.0.so.0+0x5b99e) (BuildId: b0e6a618cd46494b058c5f00ce2f1a650b200ce3)
bluetoothd[38339]:     #14 0x66fd29 in mainloop_run src/shared/mainloop-gli=
b.c:66
bluetoothd[38339]:     #15 0x67077e in mainloop_run_with_signal src/shared/=
mainloop-notify.c:188
bluetoothd[38339]:     #16 0x4da138 in main src/main.c:1450
bluetoothd[38339]:     #17 0x7fdd0a649b49 in __libc_start_call_main (/lib64=
/libc.so.6+0x27b49) (BuildId: 245240a31888ad5c11bbc55b18e02d87388f59a9)
bluetoothd[38339]:     #18 0x7fdd0a649c0a in __libc_start_main_alias_2 (/li=
b64/libc.so.6+0x27c0a) (BuildId: 245240a31888ad5c11bbc55b18e02d87388f59a9)
bluetoothd[38339]:     #19 0x40c974 in _start (/usr/local/stow/bluez-dev/li=
bexec/bluetooth/bluetoothd+0x40c974) (BuildId: 339d83124c60413f66f5c84af62c=
d00e236e7733)
bluetoothd[38339]: SUMMARY: AddressSanitizer: heap-buffer-overflow src/shar=
ed/gatt-db.c:1877 in gatt_db_attribute_get_char_data
bluetoothd[38339]: Shadow bytes around the buggy address:
bluetoothd[38339]:   0x60400003d880: fa fa fd fd fd fd fd fd fa fa fd fd fd=
 fd fd fa
bluetoothd[38339]:   0x60400003d900: fa fa fd fd fd fd fd fd fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003d980: fa fa fd fd fd fd fd fa fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003da00: fa fa fd fd fd fd fd fa fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003da80: fa fa fd fd fd fd fd fa fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]: =3D>0x60400003db00: fa[fa]00 00 00 00 00 fa fa fa 00 00 =
00 00 00 fa
bluetoothd[38339]:   0x60400003db80: fa fa 00 00 00 00 00 00 fa fa fd fd fd=
 fd fd fa
bluetoothd[38339]:   0x60400003dc00: fa fa fd fd fd fd fd fd fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003dc80: fa fa fd fd fd fd fd fa fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003dd00: fa fa fd fd fd fd fd fa fa fa fd fd fd=
 fd fd fd
bluetoothd[38339]:   0x60400003dd80: fa fa fd fd fd fd fd fd fa fa fd fd fd=
 fd fd fa
bluetoothd[38339]: Shadow byte legend (one shadow byte represents 8 applica=
tion bytes):
bluetoothd[38339]:   Addressable:           00
bluetoothd[38339]:   Partially addressable: 01 02 03 04 05 06 07
bluetoothd[38339]:   Heap left redzone:       fa
bluetoothd[38339]:   Freed heap region:       fd
bluetoothd[38339]:   Stack left redzone:      f1
bluetoothd[38339]:   Stack mid redzone:       f2
bluetoothd[38339]:   Stack right redzone:     f3
bluetoothd[38339]:   Stack after return:      f5
bluetoothd[38339]:   Stack use after scope:   f8
bluetoothd[38339]:   Global redzone:          f9
bluetoothd[38339]:   Global init order:       f6
bluetoothd[38339]:   Poisoned by user:        f7
bluetoothd[38339]:   Container overflow:      fc
bluetoothd[38339]:   Array cookie:            ac
bluetoothd[38339]:   Intra object redzone:    bb
bluetoothd[38339]:   ASan internal:           fe
bluetoothd[38339]:   Left alloca redzone:     ca
bluetoothd[38339]:   Right alloca redzone:    cb
bluetoothd[38339]: =3D=3D38339=3D=3DABORTING
systemd[1]: bluetooth.service: Main process exited, code=3Ddumped, status=
=3D6/ABRT
systemd[1]: bluetooth.service: Failed with result 'core-dump'.


> ---
> v2: Cosmetic Changes (Bluez Test Bot)
> v5: Resolved GitLint warning (tedd_an/GitLint)
> ---
>=20
>  src/shared/vcp.c | 25 ++++++++++++++++++-------
>  1 file changed, 18 insertions(+), 7 deletions(-)
>=20
> diff --git a/src/shared/vcp.c b/src/shared/vcp.c
> index 92f21fd0b..74bd01729 100644
> --- a/src/shared/vcp.c
> +++ b/src/shared/vcp.c
> @@ -32,9 +32,13 @@
> =20
>  #define VCP_STEP_SIZE 1
> =20
> +#define VOCS_VOL_OFFSET_UPPER_LIMIT	 255
> +#define VOCS_VOL_OFFSET_LOWER_LIMIT	-255
> +
>  /* Apllication Error Code */
>  #define BT_ATT_ERROR_INVALID_CHANGE_COUNTER	0x80
>  #define BT_ATT_ERROR_OPCODE_NOT_SUPPORTED	0x81
> +#define BT_ATT_ERROR_VALUE_OUT_OF_RANGE		0x82
> =20
>  #define BT_VCP_NA                   BIT(0)
>  #define BT_VCP_FRONT_LEFT           BIT(1)
> @@ -100,7 +104,7 @@ struct bt_vcs_ab_vol {
> =20
>  struct bt_vocs_set_vol_off {
>  	uint8_t	change_counter;
> -	uint8_t	set_vol_offset;
> +	int16_t set_vol_offset;
>  } __packed;
> =20
>  struct bt_vcp_cb {
> @@ -167,7 +171,7 @@ struct bt_vcs {
> =20
>  /* Contains local bt_vcp_db */
>  struct vol_offset_state {
> -	uint16_t vol_offset;
> +	int16_t vol_offset;
>  	uint8_t counter;
>  } __packed;
> =20
> @@ -705,6 +709,11 @@ static uint8_t vocs_set_vol_offset(struct bt_vocs *v=
ocs, struct bt_vcp *vcp,
>  		return BT_ATT_ERROR_INVALID_CHANGE_COUNTER;
>  	}
> =20
> +	if (req->set_vol_offset > VOCS_VOL_OFFSET_UPPER_LIMIT ||
> +		req->set_vol_offset < VOCS_VOL_OFFSET_LOWER_LIMIT) {
> +		DBG(vcp, "error: Value Out of Range");
> +		return BT_ATT_ERROR_VALUE_OUT_OF_RANGE;
> +	}
>  	vstate->vol_offset =3D req->set_vol_offset;
>  	vstate->counter =3D -~vstate->counter; /*Increment Change Counter*/
> =20
> @@ -971,7 +980,7 @@ static void vocs_voaodec_read(struct gatt_db_attribut=
e *attrib,
>  							iov.iov_len);
>  }
> =20
> -static struct bt_vcs *vcs_new(struct gatt_db *db)
> +static struct bt_vcs *vcs_new(struct gatt_db *db, struct bt_vcp_db *vdb)
>  {
>  	struct bt_vcs *vcs;
>  	struct vol_state *vstate;
> @@ -990,6 +999,8 @@ static struct bt_vcs *vcs_new(struct gatt_db *db)
>  	/* Populate DB with VCS attributes */
>  	bt_uuid16_create(&uuid, VCS_UUID);
>  	vcs->service =3D gatt_db_add_service(db, &uuid, true, 9);
> +	gatt_db_service_add_included(vcs->service, vdb->vocs->service);
> +	gatt_db_service_set_active(vdb->vocs->service, true);
> =20
>  	bt_uuid16_create(&uuid, VOL_STATE_CHRC_UUID);
>  	vcs->vs =3D gatt_db_service_add_characteristic(vcs->service,
> @@ -1048,7 +1059,8 @@ static struct bt_vocs *vocs_new(struct gatt_db *db)
> =20
>  	/* Populate DB with VOCS attributes */
>  	bt_uuid16_create(&uuid, VOL_OFFSET_CS_UUID);
> -	vocs->service =3D gatt_db_add_service(db, &uuid, true, 9);
> +
> +	vocs->service =3D gatt_db_add_service(db, &uuid, false, 12);
> =20
>  	bt_uuid16_create(&uuid, VOCS_STATE_CHAR_UUID);
>  	vocs->vos =3D gatt_db_service_add_characteristic(vocs->service,
> @@ -1110,11 +1122,10 @@ static struct bt_vcp_db *vcp_db_new(struct gatt_d=
b *db)
>  	if (!vcp_db)
>  		vcp_db =3D queue_new();
> =20
> -	vdb->vcs =3D vcs_new(db);
> -	vdb->vcs->vdb =3D vdb;
> -
>  	vdb->vocs =3D vocs_new(db);
>  	vdb->vocs->vdb =3D vdb;
> +	vdb->vcs =3D vcs_new(db, vdb);
> +	vdb->vcs->vdb =3D vdb;
> =20
>  	queue_push_tail(vcp_db, vdb);
> =20