[parker@x53e ~]$ sudo btmon
[sudo] password for parker:
Bluetooth monitor ver 5.41
= Note: Linux version 4.8.0-rc8-g3be7988 (x86_64)                                                             0.115681
= Note: Bluetooth subsystem version 2.21                                                                      0.115685
= New Index: 70:77:81:57:FE:76 (Primary,USB,hci0)                                                      [hci0] 0.115687
= Open Index: 70:77:81:57:FE:76                                                                        [hci0] 0.115688
= Index Info: 70:77:81:57:FE:76 (Atheros Communications, Inc.)                                         [hci0] 0.115689
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7                                            [hci0] 12.670610
        Type: Passive (0x00)
        Interval: 60.000 msec (0x0060)
        Window: 30.000 msec (0x0030)
        Own address type: Public (0x00)
        Filter policy: Ignore not in white list (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                           [hci0] 12.815407
      LE Set Scan Parameters (0x08|0x000b) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                                [hci0] 12.815526
        Scanning: Enabled (0x01)
        Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                           [hci0] 12.816393
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29                                                             [hci0] 14.227464
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Connectable undirected - ADV_IND (0x00)
        Address type: Public (0x00)
        Address: 1C:96:5A:F4:78:BC (Weifang goertek Electronics CO.,LTD)
        Data length: 17
        Flags: 0x06
          LE General Discoverable Mode
          BR/EDR Not Supported
        16-bit Service UUIDs (partial): 3 entries
          Link Loss (0x1803)
          Immediate Alert (0x1802)
          Tx Power (0x1804)
        Company: Motorola (8)
          Data: 0000
        RSSI: -62 dBm (0xc2)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                                [hci0] 14.227576
        Scanning: Disabled (0x00)
        Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                           [hci0] 14.228362
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Create Connection (0x08|0x000d) plen 25                                             [hci0] 14.228415
        Scan interval: 60.000 msec (0x0060)
        Scan window: 60.000 msec (0x0060)
        Filter policy: White list is not used (0x00)
        Peer address type: Public (0x00)
        Peer address: 1C:96:5A:F4:78:BC (Weifang goertek Electronics CO.,LTD)
        Own address type: Public (0x00)
        Min connection interval: 50.00 msec (0x0028)
        Max connection interval: 70.00 msec (0x0038)
        Connection latency: 0x0000
        Supervision timeout: 420 msec (0x002a)
        Min connection length: 0.000 msec (0x0000)
        Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4                                                             [hci0] 14.229345
      LE Create Connection (0x08|0x000d) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 19                                                             [hci0] 15.166476
      LE Connection Complete (0x01)
        Status: Success (0x00)
        Handle: 32
        Role: Master (0x00)
        Peer address type: Public (0x00)
        Peer address: 1C:96:5A:F4:78:BC (Weifang goertek Electronics CO.,LTD)
        Connection interval: 67.50 msec (0x0036)
        Connection latency: 0.00 msec (0x0000)
        Supervision timeout: 420 msec (0x002a)
        Master clock accuracy: 0x00
< HCI Command: LE Read Remote Used Features (0x08|0x0016) plen 2                                      [hci0] 15.166807
        Handle: 32
@ Device Connected: 1C:96:5A:F4:78:BC (1) flags 0x0000
        02 01 06 07 02 03 18 02 18 04 18 05 ff 08 00 00  ................
        00                                               .
> HCI Event: Command Status (0x0f) plen 4                                                             [hci0] 15.168361
      LE Read Remote Used Features (0x08|0x0016) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 12                                                             [hci0] 15.247506
      LE Read Remote Used Features (0x04)
        Status: Success (0x00)
        Handle: 32
        Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          LE Encryption
< ACL Data TX: Handle 32 flags 0x00 dlen 7                                                            [hci0] 15.248030
      ATT: Exchange MTU Request (0x02) len 2
        Client RX MTU: 517
> HCI Event: Number of Completed Packets (0x13) plen 5                                                [hci0] 15.314515
        Num handles: 1
        Handle: 32
        Count: 1
> ACL Data RX: Handle 32 flags 0x02 dlen 7                                                            [hci0] 15.380841
      ATT: Exchange MTU Response (0x03) len 2
        Server RX MTU: 23
< ACL Data TX: Handle 32 flags 0x00 dlen 11                                                           [hci0] 15.381097
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0001-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5                                                [hci0] 15.449516
        Num handles: 1
        Handle: 32
        Count: 1
> ACL Data RX: Handle 32 flags 0x02 dlen 24                                                           [hci0] 15.516007
      ATT: Read By Group Type Response (0x11) len 19
        Attribute data length: 6
        Attribute group list: 3 entries
        Handle range: 0x0001-0x000b
        UUID: Generic Access Profile (0x1800)
        Handle range: 0x000c-0x000f
        UUID: Generic Attribute Profile (0x1801)
        Handle range: 0x0010-0x0022
        UUID: Device Information (0x180a)
< ACL Data TX: Handle 32 flags 0x00 dlen 11                                                           [hci0] 15.516271
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0023-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5                                                [hci0] 15.584515
        Num handles: 1
        Handle: 32
        Count: 1
> ACL Data RX: Handle 32 flags 0x02 dlen 24                                                           [hci0] 15.650923
      ATT: Read By Group Type Response (0x11) len 19
        Attribute data length: 6
        Attribute group list: 3 entries
        Handle range: 0x0023-0x0025
        UUID: Link Loss (0x1803)
        Handle range: 0x0026-0x0028
        UUID: Immediate Alert (0x1802)
        Handle range: 0x0029-0x002c
        UUID: Tx Power (0x1804)
< ACL Data TX: Handle 32 flags 0x00 dlen 11                                                           [hci0] 15.651197
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x002d-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5                                                [hci0] 15.719520
        Num handles: 1
        Handle: 32
        Count: 1
> ACL Data RX: Handle 32 flags 0x02 dlen 12                                                           [hci0] 15.853300
      ATT: Read By Group Type Response (0x11) len 7
        Attribute data length: 6
        Attribute group list: 1 entry
        Handle range: 0x002d-0x0031
        UUID: Battery Service (0x180f)
< ACL Data TX: Handle 32 flags 0x00 dlen 11                                                           [hci0] 15.853578
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0032-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5                                                [hci0] 15.921523
        Num handles: 1
        Handle: 32
        Count: 1
> ACL Data RX: Handle 32 flags 0x02 dlen 26                                                           [hci0] 16.056013
      ATT: Read By Group Type Response (0x11) len 21
        Attribute data length: 20
        Attribute group list: 1 entry
        Handle range: 0x0032-0x0039
*** buffer overflow detected ***: btmon terminated
======= Backtrace: =========
/usr/lib/libc.so.6(+0x70c4b)[0x7f3100b3fc4b]
/usr/lib/libc.so.6(__fortify_fail+0x37)[0x7f3100bc7f17]
/usr/lib/libc.so.6(+0xf7050)[0x7f3100bc6050]
/usr/lib/libc.so.6(+0xf6609)[0x7f3100bc5609]
/usr/lib/libc.so.6(_IO_default_xsputn+0xac)[0x7f3100b43c6c]
/usr/lib/libc.so.6(_IO_vfprintf+0xcd3)[0x7f3100b16a73]
/usr/lib/libc.so.6(__vsprintf_chk+0x8c)[0x7f3100bc569c]
/usr/lib/libc.so.6(__sprintf_chk+0x7d)[0x7f3100bc55ed]
btmon[0x422717]
btmon[0x423244]
btmon[0x420807]
btmon[0x420d17]
btmon[0x418a36]
btmon[0x418fc7]
btmon[0x4043c4]
btmon[0x442e5b]
btmon[0x402ab0]
/usr/lib/libc.so.6(__libc_start_main+0xf1)[0x7f3100aef291]
btmon[0x402b19]
======= Memory map: ========
00400000-0047e000 r-xp 00000000 08:03 3841289                            /usr/bin/btmon
0067d000-0067e000 r--p 0007d000 08:03 3841289                            /usr/bin/btmon
0067e000-00680000 rw-p 0007e000 08:03 3841289                            /usr/bin/btmon
00680000-00681000 rw-p 00000000 00:00 0
018ed000-0190e000 rw-p 00000000 00:00 0                                  [heap]
7f30ffd74000-7f30ffd8a000 r-xp 00000000 08:03 3804658                    /usr/lib/libgcc_s.so.1
7f30ffd8a000-7f30fff89000 ---p 00016000 08:03 3804658                    /usr/lib/libgcc_s.so.1
7f30fff89000-7f30fff8a000 r--p 00015000 08:03 3804658                    /usr/lib/libgcc_s.so.1
7f30fff8a000-7f30fff8b000 rw-p 00016000 08:03 3804658                    /usr/lib/libgcc_s.so.1
7f30fff8b000-7f30fffa3000 r-xp 00000000 08:03 3804307                    /usr/lib/libpthread-2.24.so
7f30fffa3000-7f31001a2000 ---p 00018000 08:03 3804307                    /usr/lib/libpthread-2.24.so
7f31001a2000-7f31001a3000 r--p 00017000 08:03 3804307                    /usr/lib/libpthread-2.24.so
7f31001a3000-7f31001a4000 rw-p 00018000 08:03 3804307                    /usr/lib/libpthread-2.24.so
7f31001a4000-7f31001a8000 rw-p 00000000 00:00 0
7f31001a8000-7f31002ab000 r-xp 00000000 08:03 3804384                    /usr/lib/libm-2.24.so
7f31002ab000-7f31004aa000 ---p 00103000 08:03 3804384                    /usr/lib/libm-2.24.so
7f31004aa000-7f31004ab000 r--p 00102000 08:03 3804384                    /usr/lib/libm-2.24.so
7f31004ab000-7f31004ac000 rw-p 00103000 08:03 3804384                    /usr/lib/libm-2.24.so
7f31004ac000-7f31004b3000 r-xp 00000000 08:03 3804387                    /usr/lib/librt-2.24.so
7f31004b3000-7f31006b2000 ---p 00007000 08:03 3804387                    /usr/lib/librt-2.24.so
7f31006b2000-7f31006b3000 r--p 00006000 08:03 3804387                    /usr/lib/librt-2.24.so
7f31006b3000-7f31006b4000 rw-p 00007000 08:03 3804387                    /usr/lib/librt-2.24.so
7f31006b4000-7f31006b8000 r-xp 00000000 08:03 3807593                    /usr/lib/libcap.so.2.25
7f31006b8000-7f31008b7000 ---p 00004000 08:03 3807593                    /usr/lib/libcap.so.2.25
7f31008b7000-7f31008b8000 rw-p 00003000 08:03 3807593                    /usr/lib/libcap.so.2.25
7f31008b8000-7f31008cc000 r-xp 00000000 08:03 3804386                    /usr/lib/libresolv-2.24.so
7f31008cc000-7f3100acb000 ---p 00014000 08:03 3804386                    /usr/lib/libresolv-2.24.so
7f3100acb000-7f3100acc000 r--p 00013000 08:03 3804386                    /usr/lib/libresolv-2.24.so
7f3100acc000-7f3100acd000 rw-p 00014000 08:03 3804386                    /usr/lib/libresolv-2.24.so
7f3100acd000-7f3100acf000 rw-p 00000000 00:00 0
7f3100acf000-7f3100c64000 r-xp 00000000 08:03 3804326                    /usr/lib/libc-2.24.so
7f3100c64000-7f3100e63000 ---p 00195000 08:03 3804326                    /usr/lib/libc-2.24.so
7f3100e63000-7f3100e67000 r--p 00194000 08:03 3804326                    /usr/lib/libc-2.24.so
7f3100e67000-7f3100e69000 rw-p 00198000 08:03 3804326                    /usr/lib/libc-2.24.so
7f3100e69000-7f3100e6d000 rw-p 00000000 00:00 0
7f3100e6d000-7f3100e90000 r-xp 00000000 08:03 3804325                    /usr/lib/ld-2.24.so
7f310103d000-7f3101042000 rw-p 00000000 00:00 0
7f3101042000-7f3101060000 r-xp 00000000 08:03 3811461                    /usr/lib/libudev.so.1.6.5
7f3101060000-7f3101061000 ---p 0001e000 08:03 3811461                    /usr/lib/libudev.so.1.6.5
7f3101061000-7f3101062000 r--p 0001e000 08:03 3811461                    /usr/lib/libudev.so.1.6.5
7f3101062000-7f3101063000 rw-p 0001f000 08:03 3811461                    /usr/lib/libudev.so.1.6.5
7f3101063000-7f3101065000 rw-p 00000000 00:00 0
7f310108e000-7f310108f000 rw-p 00000000 00:00 0
7f310108f000-7f3101090000 r--p 00022000 08:03 3804325                    /usr/lib/ld-2.24.so
7f3101090000-7f3101091000 rw-p 00023000 08:03 3804325                    /usr/lib/ld-2.24.so
7f3101091000-7f3101092000 rw-p 00000000 00:00 0
7fffe8b9f000-7fffe8bc0000 rw-p 00000000 00:00 0                          [stack]
7fffe8bc1000-7fffe8bc3000 r--p 00000000 00:00 0                          [vvar]
7fffe8bc3000-7fffe8bc5000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
Aborted