[Bug 1376274] Re: unscd segfaults regularly

[Bryan Quigley]

Thanks Daniel!

I unfortunately don't have a test case.  Anyone else who has this bug,
please provide one so we can get this fixed.

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Title:
  unscd segfaults regularly

Status in unscd package in Ubuntu:
  Fix Released
Status in unscd source package in Trusty:
  Fix Committed

Bug description:
  [Impact]

   * It's causing a crash.

  [Test Case]

   * detailed instructions how to reproduce the bug

  [Regression Potential]

   * The fix just checks for one NULL pointer, and it's been in 16.04
  and above since release, per comment #3.

  
  Original Report:
  kern.log:Oct  1 11:34:51 camel kernel: [1715974.313870] nscd[11501]: segfault at 0 ip 0000000000403b71 sp 00007fff8ba4def0 error 4 in nscd[400000+8000]

  unscd is getting died after a not very long time.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unscd 0.51-1build2
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  NonfreeKernelModules: vhost_net vhost macvtap macvlan ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables x_tables veth bridge stp llc gpio_ich x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd sb_edac joydev edac_core mei_me mei lpc_ich ipmi_si wmi ioatdma mac_hid lp parport zfs zunicode zavl zcommon znvpair spl btrfs libcrc32c raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor igb raid6_pq i2c_algo_bit raid1 isci mpt2sas hid_generic dca raid0 libsas usbhid raid_class ptp ahci multipath hid libahci scsi_transport_sas pps_core linear
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  Date: Wed Oct  1 15:49:48 2014
  Dependencies:
   gcc-4.9-base 4.9.1-0ubuntu1
   libc6 2.19-0ubuntu6.3
   libgcc1 1:4.9.1-0ubuntu1
   multiarch-support 2.19-0ubuntu6.3
  SourcePackage: unscd
  UpgradeStatus: Upgraded to trusty on 2014-06-04 (119 days ago)

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