bluetoothd crashed with SIGSEGV in rawmemchr() from _IO_str_init_static_internal from _IO_vsscanf from __sscanf from get_supported_device [plugins/sixaxis.c]

[Anders Kaseorg]

bluetoothd crashed with SIGSEGV in rawmemchr()

https://errors.ubuntu.com/problem/f0eca11dfcb228bd89caa34e5f9b5529151c0c88

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: bluez 5.35-0ubuntu2
ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.19.2-0ubuntu4
Architecture: amd64
Date: Sat Nov 7 17:15:18 2015
ExecutablePath: /usr/lib/bluetooth/bluetoothd
InstallationDate: Installed on 2015-06-02 (158 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: LENOVO 20349
ProcCmdline: /usr/lib/bluetooth/bluetoothd
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-17-generic.efi.signed root=/dev/mapper/btree-ubuntu ro rootflags=subvol=@ noprompt quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fef0124a51f <rawmemchr+31>: movdqu (%rdi),%xmm0
 PC (0x7fef0124a51f) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm0" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: bluez
StacktraceTop:
 rawmemchr () at ../sysdeps/x86_64/rawmemchr.S:37
 _IO_str_init_static_internal (sf=sf@entry=0x7fffafd6df50, ptr=ptr@entry=0x0, size=size@entry=0, pstart=pstart@entry=0x0) at strops.c:44
 _IO_vsscanf (string=0x0, format=0x7fef0062eacc "%hx:%hx:%hx", args=args@entry=0x7fffafd6e078) at iovsscanf.c:43
 __sscanf (s=<optimized out>, format=<optimized out>) at sscanf.c:32
 ?? () from /usr/lib/x86_64-linux-gnu/bluetooth/plugins/sixaxis.so
Title: bluetoothd crashed with SIGSEGV in rawmemchr()
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to xenial on 2015-10-28 (11 days ago)
UserGroups:

dmi.bios.date: 07/22/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: 9ECN40WW(V3.00)
dmi.board.asset.tag: 31900058Std
dmi.board.name: Lenovo Y50-70 Touch
dmi.board.vendor: LENOVO
dmi.board.version: 31900058Std
dmi.chassis.asset.tag: 31900058Std
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Y50-70 Touch
dmi.modalias: dmi:bvnLENOVO:bvr9ECN40WW(V3.00):bd07/22/2015:svnLENOVO:pn20349:pvrLenovoY50-70Touch:rvnLENOVO:rnLenovoY50-70Touch:rvr31900058Std:cvnLENOVO:ct10:cvrLenovoY50-70Touch:
dmi.product.name: 20349
dmi.product.version: Lenovo Y50-70 Touch
dmi.sys.vendor: LENOVO
hciconfig:
 hci0: Type: BR/EDR Bus: USB
  BD Address: 28:B2:BD:0B:11:97 ACL MTU: 1021:5 SCO MTU: 96:5
  UP RUNNING
  RX bytes:691 acl:0 sco:0 events:47 errors:0
  TX bytes:2182 acl:0 sco:0 commands:47 errors:0

[Apport retracing service (apport)]

StacktraceTop:
 rawmemchr () at ../sysdeps/x86_64/rawmemchr.S:37
 _IO_str_init_static_internal (sf=sf@entry=0x7fffafd6df50, ptr=ptr@entry=0x0, size=size@entry=0, pstart=pstart@entry=0x0) at strops.c:44
 _IO_vsscanf (string=0x0, format=0x7fef0062eacc "%hx:%hx:%hx", args=args@entry=0x7fffafd6e078) at iovsscanf.c:43
 __sscanf (s=<optimized out>, format=format@entry=0x7fef0062eacc "%hx:%hx:%hx") at sscanf.c:32
 get_supported_device (bus=0x7fffafd6e18a, udevice=0x5565b18cbf10) at plugins/sixaxis.c:470

[Daniel van Vugt (vanvugt)]

This crash has stopped happening after 17.04.