This happens if the target host is not in ~/.ssh/known_hosts, or that
file does not exist.

** Summary changed:

- gvfsd-sftp crashed with SIGSEGV in fast_validate()
+ gvfsd-sftp crashed with SIGSEGV in fast_validate() if the target host is not 
in .ssh/known_hosts

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https://bugs.launchpad.net/bugs/1033275

Title:
  gvfsd-sftp crashed with SIGSEGV in fast_validate() if the target host
  is not in .ssh/known_hosts

Status in “gvfs” package in Ubuntu:
  In Progress

Bug description:
  Crashing while opening a SMB share.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: gvfs-backends 1.13.4-0ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
  Uname: Linux 3.5.0-8-generic x86_64
  ApportVersion: 2.4-0ubuntu6
  Architecture: amd64
  Date: Sun Aug  5 22:02:34 2012
  ExecutablePath: /usr/lib/gvfs/gvfsd-sftp
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
  ProcCmdline: /usr/lib/gvfs/gvfsd-sftp --spawner :1.4 /org/gtk/gvfs/exec_spaw/7
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANGUAGE=nl:en_AU:en
   LANG=nl_BE.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7f8f4df86f28 <g_utf8_validate+456>:  movzbl 
(%rdi),%r8d
   PC (0x7f8f4df86f28) ok
   source "(%rdi)" (0x6874756120656854) not located in a known VMA region 
(needed readable region)!
   destination "%r8d" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: gvfs
  StacktraceTop:
   g_utf8_validate () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_variant_new_string () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_variant_new_strv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: gvfsd-sftp crashed with SIGSEGV in g_utf8_validate()
  UpgradeStatus: Upgraded to quantal on 2012-06-19 (46 days ago)
  UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare

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