[Bug 1727867] Re: bluetoothd crashed with SIGSEGV in malloc_consolidate() from _int_malloc() from _int_realloc() from __GI___libc_realloc() from g_realloc() from g_string_maybe_expand() from g_string_append_vprintf()

[Daniel van Vugt]

Confirmed by:
https://errors.ubuntu.com/problem/61214d7f12303ee9de1d1b8a7621c6f5dc47d8f0

** Description changed:

+ https://errors.ubuntu.com/problem/61214d7f12303ee9de1d1b8a7621c6f5dc47d8f0
+ 
+ ---
+ 
  While trying to pair with a mouse (microsoft sculpt mouse)
  
  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: bluez 5.46-0ubuntu3
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3
  Architecture: amd64
  Date: Thu Oct 26 23:42:52 2017
  ExecutablePath: /usr/lib/bluetooth/bluetoothd
  InstallationDate: Installed on 2017-06-22 (125 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  InterestingModules: rfcomm bnep btusb bluetooth
  MachineType: LENOVO 20FBCTO1WW
  ProcCmdline: /usr/lib/bluetooth/bluetoothd
  ProcEnviron:
-  LANG=fr_FR.UTF-8
-  PATH=(custom, no user)
+  LANG=fr_FR.UTF-8
+  PATH=(custom, no user)
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed root=/dev/mapper/vg--hostname-root--ubuntu ro quiet splash vt.handoff=7
  SegvAnalysis:
-  Segfault happened at: 0x7f6907f6d108 <malloc_consolidate+312>:	mov    0x8(%rbx),%rax
-  PC (0x7f6907f6d108) ok
-  source "0x8(%rbx)" (0x100000007) not located in a known VMA region (needed readable region)!
-  destination "%rax" ok
+  Segfault happened at: 0x7f6907f6d108 <malloc_consolidate+312>:	mov    0x8(%rbx),%rax
+  PC (0x7f6907f6d108) ok
+  source "0x8(%rbx)" (0x100000007) not located in a known VMA region (needed readable region)!
+  destination "%rax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: bluez
  StacktraceTop:
-  malloc_consolidate (av=av at entry=0x7f69082bec20 <main_arena>) at malloc.c:4489
-  _int_malloc (av=av at entry=0x7f69082bec20 <main_arena>, bytes=bytes at entry=1025) at malloc.c:3705
-  _int_realloc (av=av at entry=0x7f69082bec20 <main_arena>, oldp=oldp at entry=0x559621487250, oldsize=oldsize at entry=544, nb=nb at entry=1040) at malloc.c:4626
-  __GI___libc_realloc (oldmem=0x559621487260, bytes=1024) at malloc.c:3245
-  g_realloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
+  malloc_consolidate (av=av at entry=0x7f69082bec20 <main_arena>) at malloc.c:4489
+  _int_malloc (av=av at entry=0x7f69082bec20 <main_arena>, bytes=bytes at entry=1025) at malloc.c:3705
+  _int_realloc (av=av at entry=0x7f69082bec20 <main_arena>, oldp=oldp at entry=0x559621487250, oldsize=oldsize at entry=544, nb=nb at entry=1040) at malloc.c:4626
+  __GI___libc_realloc (oldmem=0x559621487260, bytes=1024) at malloc.c:3245
+  g_realloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: bluetoothd crashed with SIGSEGV in malloc_consolidate()
  UpgradeStatus: Upgraded to artful on 2017-10-09 (17 days ago)
  UserGroups:
-  
+ 
  dmi.bios.date: 04/18/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N1FET40W (1.14 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FBCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN1FET40W(1.14):bd04/18/2016:svnLENOVO:pn20FBCTO1WW:pvrThinkPadX1Carbon4th:rvnLENOVO:rn20FBCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Carbon 4th
  dmi.product.name: 20FBCTO1WW
  dmi.product.version: ThinkPad X1 Carbon 4th
  dmi.sys.vendor: LENOVO
  hciconfig:
-  hci0:	Type: Primary  Bus: USB
-  	BD Address: E4:A4:71:4F:31:79  ACL MTU: 1021:4  SCO MTU: 96:6
-  	UP RUNNING PSCAN ISCAN 
-  	RX bytes:980135 acl:0 sco:0 events:12127 errors:0
-  	TX bytes:605335 acl:0 sco:0 commands:2477 errors:0
+  hci0:	Type: Primary  Bus: USB
+   BD Address: E4:A4:71:4F:31:79  ACL MTU: 1021:4  SCO MTU: 96:6
+   UP RUNNING PSCAN ISCAN
+   RX bytes:980135 acl:0 sco:0 events:12127 errors:0
+   TX bytes:605335 acl:0 sco:0 commands:2477 errors:0

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https://bugs.launchpad.net/bugs/1727867

Title:
  bluetoothd crashed with SIGSEGV in malloc_consolidate() from
  _int_malloc() from _int_realloc() from __GI___libc_realloc() from
  g_realloc() from g_string_maybe_expand() from
  g_string_append_vprintf()

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